Update GWCA - fixes Character Select widget (#1626)

* Update dependencies

* Fix GWCA issues

.editorconfig

@@ -6,8 +6,8 @@ csharp_indent_labels = one_less_than_current
 csharp_using_directive_placement = outside_namespace:error
 csharp_prefer_simple_using_statement = true:error
 csharp_prefer_braces = true:silent
-csharp_style_namespace_declarations = block_scoped:silent
-csharp_style_prefer_method_group_conversion = true:silent
+csharp_style_namespace_declarations = file_scoped:error
+csharp_style_prefer_method_group_conversion = true:suggestion
 csharp_style_expression_bodied_methods = false:silent
 csharp_style_expression_bodied_constructors = false:silent
 csharp_style_expression_bodied_operators = false:silent
@@ -46,6 +46,9 @@ csharp_style_prefer_extended_property_pattern = true:suggestion
 csharp_style_var_for_built_in_types = false:silent
 csharp_style_var_when_type_is_apparent = false:silent
 csharp_style_var_elsewhere = false:silent
+csharp_style_prefer_top_level_statements = true:suggestion
+csharp_style_prefer_utf8_string_literals = true:suggestion
+csharp_style_prefer_readonly_struct = true:suggestion
 
 [*.{cs,vb}]
 #### Naming styles ####

.github/copilot-instructions.md

@@ -0,0 +1,71 @@
+# Copilot instructions for Daybreak
+
+Daybreak is a cross-platform Guild Wars launcher built on .NET 10 and
+Photino.Blazor. Read the
+[Architecture Overview](../README.md#architecture-overview) for the project
+layout and [CONTRIBUTING.md](../CONTRIBUTING.md) for the branching and release
+process.
+
+## Workflow
+
+- Branch off the current `release/[version]` branch, never off `master`.
+- One feature or fix per branch and per PR.
+- Never push to `master` and never edit the version in `Directory.Build.props`.
+  Both are owned by the release workflows.
+- Title PRs `Short description (Closes #123)` so the linked issue gets labelled.
+
+## Build and test
+
+CI does not run on PRs targeting a release branch, so validate locally. Run the
+smallest command that covers the change:
+
+```bash
+dotnet build Daybreak.Linux/Daybreak.Linux.csproj      # or Daybreak.Windows
+dotnet test Daybreak.Tests/Daybreak.Tests.csproj --filter "FullyQualifiedName~YourTests"
+```
+
+Keep the build warning-free.
+
+## Where code goes
+
+| Change                                             | Project                              |
+| -------------------------------------------------- | ------------------------------------ |
+| Models, utilities, interfaces shared by everything | `Daybreak.Shared`                    |
+| Blazor views and services                          | `Daybreak.Core`                      |
+| Platform-specific implementations                  | `Daybreak.Windows`, `Daybreak.Linux` |
+
+`Daybreak.Tests` only references `Daybreak.Core`. When adding platform code, put
+the logic worth testing in `Daybreak.Shared` and leave the platform project as a
+thin caller.
+
+Add NuGet packages through `Directory.Packages.props`.
+
+## C# conventions
+
+`.editorconfig` is the source of truth. The projects are set up to treat
+warnings as errors.
+
+## Verify before claiming
+
+Prefer evidence over reasoning about behaviour, especially for the Wine and
+injection paths. Wine is scriptable, so reproduce the actual failure and confirm
+the fix against it rather than inferring what a Win32 call does.
+
+## Writing style
+
+Applies to docs, comments, PR descriptions and answers.
+
+- Be short. Cut filler, recap and process narration.
+- No AI-isms and no inflated language.
+- Do not paste code into documentation. Link to the file so there is only one
+  copy of it.
+- Explain the reason for a change, not a summary of the diff.
+
+## Markdown
+
+- No inline HTML. Use `![alt][ref]` with a reference definition instead of an
+  `img` tag.
+- Start a mermaid fence with the diagram type, for example `flowchart LR`. YAML
+  frontmatter inside the fence is rejected by some renderers.
+- Long URLs belong in reference-style link definitions at the bottom of the
+  file.

.github/scripts/configure-simplysign.ps1

@@ -0,0 +1,28 @@
+# Pre-configure SimplySign Desktop for unattended use:
+#  - auto-show the login dialog on launch (so the TOTP keystrokes have a target)
+#  - cache the smart-card PIN in the CSP, so signtool signs without a per-call
+#    PIN prompt, and forget it again when the session disconnects.
+# Mirrors the settings used by the blinkdisk / docuscope CI signing setups.
+
+$ErrorActionPreference = "Stop"
+
+$RegistryPath = "HKCU:\Software\Certum\SimplySign"
+
+$settings = [ordered]@{
+    ShowLoginDialogOnStart             = 1
+    ShowLoginDialogOnAppRequest        = 1
+    RememberLastUserName               = 0
+    Autostart                          = 0
+    UnregisterCertificatesOnDisconnect = 0
+    RememberPINinCSP                   = 1
+    ForgetPINinCSPonDisconnect         = 1
+    LangID                             = 9
+}
+
+Write-Host "=== Configuring SimplySign Desktop registry ==="
+New-Item -Path $RegistryPath -Force | Out-Null
+foreach ($name in $settings.Keys) {
+    Set-ItemProperty -Path $RegistryPath -Name $name -Value $settings[$name] -Type DWord
+    Write-Host "  $name = $($settings[$name])"
+}
+Write-Host "Done."

.github/scripts/connect-simplysign.ps1

@@ -0,0 +1,245 @@
+# Authenticate SimplySign Desktop non-interactively.
+#
+# Certum's SimplySign cloud has no headless login: the certificate only reaches
+# the Windows store after the GUI client authenticates. So we generate the
+# current TOTP from the otpauth:// secret (CERTUM_OTP_URI) and paste the
+# credentials into the login dialog. This needs an interactive desktop session,
+# which GitHub-hosted Windows runners provide.
+#
+# Based on https://www.devas.life/how-to-automate-signing-your-windows-app-with-certum/
+# and the refinements in blinkdisk's connect-simplysign.ps1.
+
+param(
+    [string]$OtpUri  = $env:CERTUM_OTP_URI,
+    [string]$UserId  = $env:CERTUM_USERID,
+    [string]$ExePath = $env:CERTUM_EXE_PATH
+)
+
+if (-not $OtpUri) { Write-Host "ERROR: CERTUM_OTP_URI not provided"; exit 1 }
+if (-not $UserId) { Write-Host "ERROR: CERTUM_USERID not provided"; exit 1 }
+if (-not $ExePath) {
+    $ExePath = "C:\Program Files\Certum\SimplySign Desktop\SimplySignDesktop.exe"
+}
+
+Write-Host "=== SimplySign Desktop TOTP authentication ==="
+if (-not (Test-Path $ExePath)) {
+    Write-Host "ERROR: SimplySign Desktop not found at $ExePath"
+    exit 1
+}
+
+# --- Parse the otpauth:// URI (works on PowerShell 5.1 and 7+) ---------------
+$uri = [Uri]$OtpUri
+try {
+    $q = [System.Web.HttpUtility]::ParseQueryString($uri.Query)
+} catch {
+    $q = @{}
+    foreach ($part in $uri.Query.TrimStart('?') -split '&') {
+        $kv = $part -split '=', 2
+        if ($kv.Count -eq 2) { $q[$kv[0]] = [Uri]::UnescapeDataString($kv[1]) }
+    }
+}
+
+$Base32    = $q['secret']
+$Digits    = if ($q['digits'])    { [int]$q['digits'] }    else { 6 }
+$Period    = if ($q['period'])    { [int]$q['period'] }    else { 30 }
+$Algorithm = if ($q['algorithm']) { $q['algorithm'].ToUpper() } else { 'SHA256' }
+
+if (-not $Base32) { Write-Host "ERROR: otpauth URI has no 'secret'"; exit 1 }
+if ($Algorithm -notin @('SHA1', 'SHA256', 'SHA512')) {
+    Write-Host "ERROR: unsupported TOTP algorithm: $Algorithm"
+    exit 1
+}
+
+# --- TOTP generator (RFC 6238), inline C# so there are no dependencies --------
+Add-Type -Language CSharp @"
+using System;
+using System.Security.Cryptography;
+
+public static class Totp
+{
+    private const string B32 = "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567";
+
+    private static byte[] Base32Decode(string s)
+    {
+        s = s.TrimEnd('=').ToUpperInvariant();
+        byte[] bytes = new byte[s.Length * 5 / 8];
+        int bitBuffer = 0, bitsLeft = 0, idx = 0;
+        foreach (char c in s)
+        {
+            int val = B32.IndexOf(c);
+            if (val < 0) throw new ArgumentException("Invalid Base32 char: " + c);
+            bitBuffer = (bitBuffer << 5) | val;
+            bitsLeft += 5;
+            if (bitsLeft >= 8) { bytes[idx++] = (byte)(bitBuffer >> (bitsLeft - 8)); bitsLeft -= 8; }
+        }
+        return bytes;
+    }
+
+    private static HMAC Hmac(string algorithm, byte[] key)
+    {
+        switch (algorithm.ToUpper())
+        {
+            case "SHA1":   return new HMACSHA1(key);
+            case "SHA256": return new HMACSHA256(key);
+            case "SHA512": return new HMACSHA512(key);
+            default: throw new ArgumentException("Unsupported algorithm: " + algorithm);
+        }
+    }
+
+    public static string Now(string secret, int digits, int period, string algorithm)
+    {
+        byte[] key = Base32Decode(secret);
+        long counter = DateTimeOffset.UtcNow.ToUnixTimeSeconds() / period;
+        byte[] cnt = BitConverter.GetBytes(counter);
+        if (BitConverter.IsLittleEndian) Array.Reverse(cnt);
+
+        byte[] hash;
+        using (var h = Hmac(algorithm, key)) { hash = h.ComputeHash(cnt); }
+
+        int offset = hash[hash.Length - 1] & 0x0F;
+        int binary =
+            ((hash[offset]     & 0x7F) << 24) |
+            ((hash[offset + 1] & 0xFF) << 16) |
+            ((hash[offset + 2] & 0xFF) << 8)  |
+             (hash[offset + 3] & 0xFF);
+        int otp = binary % (int)Math.Pow(10, digits);
+        return otp.ToString(new string('0', digits));
+    }
+}
+"@
+
+function Find-UiByName($el, $walker, $name) {
+    $c = $walker.GetFirstChild($el)
+    while ($c) {
+        if ($c.Current.Name -eq $name) { return $c }
+        $r = Find-UiByName $c $walker $name
+        if ($r) { return $r }
+        $c = $walker.GetNextSibling($c)
+    }
+    return $null
+}
+
+# An outdated SimplySign build pops a modal "New version found - download?" box
+# over the login form, which swallows the credential keystrokes. Decline it by
+# clicking "No" (Invoke / legacy default action / click the element's point).
+function Dismiss-UpdatePrompt {
+    try { Add-Type -AssemblyName UIAutomationClient, UIAutomationTypes -ErrorAction Stop } catch { return $false }
+    if (-not ('Win32Mouse' -as [type])) {
+        Add-Type @"
+using System;
+using System.Runtime.InteropServices;
+public static class Win32Mouse {
+    [DllImport("user32.dll")] static extern bool SetCursorPos(int x, int y);
+    [DllImport("user32.dll")] static extern void mouse_event(uint f, uint x, uint y, uint d, int e);
+    public static void Click(int x, int y){ SetCursorPos(x,y); mouse_event(0x02,0,0,0,0); mouse_event(0x04,0,0,0,0); }
+}
+"@
+    }
+    $procIds = @((Get-Process -Name '*SimplySign*' -ErrorAction SilentlyContinue).Id)
+    $walker = [System.Windows.Automation.TreeWalker]::ControlViewWalker
+    $top = $walker.GetFirstChild([System.Windows.Automation.AutomationElement]::RootElement)
+    while ($top) {
+        if ($procIds -contains $top.Current.ProcessId) {
+            $no = Find-UiByName $top $walker "No"
+            if ($no) {
+                Write-Host "Update prompt detected; declining (clicking 'No')."
+                try { ($no.GetCurrentPattern([System.Windows.Automation.InvokePattern]::Pattern)).Invoke(); return $true } catch {}
+                try { ($no.GetCurrentPattern([System.Windows.Automation.LegacyIAccessiblePattern]::Pattern)).DoDefaultAction(); return $true } catch {}
+                try { $pt = $no.GetClickablePoint(); [Win32Mouse]::Click([int]$pt.X, [int]$pt.Y); return $true } catch { Write-Host "Click 'No' failed: $($_.Exception.Message)" }
+            }
+        }
+        $top = $walker.GetNextSibling($top)
+    }
+    return $false
+}
+
+# Start from a clean slate so a stale window/session can't swallow the keystrokes.
+if ($existing = Get-Process -Name "SimplySignDesktop" -ErrorAction Ignore) {
+    Write-Host "Killing existing SimplySignDesktop process..."
+    $existing | Stop-Process -Force
+    Start-Sleep -Seconds 1
+}
+
+Write-Host "Launching SimplySign Desktop..."
+$proc = Start-Process -FilePath $ExePath -PassThru
+Start-Sleep -Seconds 3
+
+$wshell = New-Object -ComObject WScript.Shell
+
+Write-Host "Focusing the login window..."
+$focused = $wshell.AppActivate($proc.Id)
+if (-not $focused) { $focused = $wshell.AppActivate('SimplySign Desktop') }
+for ($i = 0; (-not $focused) -and ($i -lt 10); $i++) {
+    Start-Sleep -Milliseconds 500
+    $focused = $wshell.AppActivate($proc.Id) -or $wshell.AppActivate('SimplySign Desktop')
+}
+if (-not $focused) {
+    Write-Host "ERROR: could not bring SimplySign Desktop to the foreground"
+    exit 1
+}
+
+# Decline the "new version available" modal if it's covering the login form.
+if (Dismiss-UpdatePrompt) { Start-Sleep -Milliseconds 800 }
+
+# Re-assert focus: dismissing the dialog can move the foreground window, and
+# keystrokes sent to the wrong window are silently dropped.
+$wshell.AppActivate($proc.Id) | Out-Null
+$wshell.AppActivate('SimplySign Desktop') | Out-Null
+Start-Sleep -Milliseconds 400
+
+# Paste rather than type: SendKeys mangles characters like + ^ % ( ) and can
+# drop characters; pasting delivers the exact string. Falls back to typing if
+# the clipboard is unavailable.
+function Set-Field([string]$text) {
+    try {
+        Set-Clipboard -Value $text -ErrorAction Stop
+        Start-Sleep -Milliseconds 150
+        $wshell.SendKeys("^v")
+    } catch {
+        Write-Host "Clipboard unavailable ($($_.Exception.Message)); typing instead."
+        $wshell.SendKeys($text)
+    }
+    Start-Sleep -Milliseconds 250
+}
+
+Write-Host "Injecting credentials..."
+Set-Field $UserId
+$wshell.SendKeys("{TAB}")
+Start-Sleep -Milliseconds 200
+
+# Generate the code right before sending it so it can't expire while we focus.
+$otp = [Totp]::Now($Base32, $Digits, $Period, $Algorithm)
+Set-Field $otp
+Start-Sleep -Milliseconds 200
+$wshell.SendKeys("{ENTER}")
+
+# Don't leave the OTP / username sitting on the clipboard afterwards.
+try { Set-Clipboard -Value " " -ErrorAction Stop } catch {}
+
+Write-Host "Waiting for authentication to settle..."
+Start-Sleep -Seconds 5
+
+if (-not (Get-Process -Id $proc.Id -ErrorAction SilentlyContinue)) {
+    Write-Host "ERROR: SimplySign Desktop exited - authentication failed."
+    exit 1
+}
+
+# Confirm the login actually mounted the signing certificate into the store.
+$thumb = if ($env:CERTUM_CERT_SHA1) { ($env:CERTUM_CERT_SHA1 -replace '\s', '').ToUpperInvariant() } else { $null }
+Write-Host "Verifying the signing certificate reached the store..."
+$deadline = (Get-Date).AddSeconds(60)
+$found = $false
+do {
+    $certs = Get-ChildItem Cert:\CurrentUser\My, Cert:\LocalMachine\My -ErrorAction SilentlyContinue
+    if ($thumb) { $found = [bool]($certs | Where-Object { $_.Thumbprint -eq $thumb }) }
+    else        { $found = [bool]($certs | Where-Object { $_.Subject -like '*Certum*' -or $_.Issuer -like '*Certum*' }) }
+    if ($found) { break }
+    Start-Sleep -Seconds 3
+} while ((Get-Date) -lt $deadline)
+
+if ($found) {
+    Write-Host "=== Authentication complete: signing certificate is available. ==="
+} else {
+    Write-Host "ERROR: signing certificate did not appear after authentication."
+    exit 1
+}

.github/scripts/install-simplysign.sh

@@ -0,0 +1,46 @@
+#!/bin/bash
+# Install Certum SimplySign Desktop on the (ephemeral) Windows runner.
+# SimplySign Desktop is what mounts the cloud signing certificate as a virtual
+# smart card into the Windows certificate store; signtool then selects it by
+# thumbprint. The version + checksum are pinned for reproducibility.
+
+set -euo pipefail
+
+VERSION="9.3.4.72"
+URL="https://files.certum.eu/software/SimplySignDesktop/Windows/${VERSION}/SimplySignDesktop-${VERSION}-64-bit-en.msi"
+EXPECTED_SHA256="bd51ebbaaac20fc7d59ab7103b5ed532b7800586df4e31f6999d03a394f9c515"
+INSTALLER="SimplySignDesktop.msi"
+INSTALL_DIR="/c/Program Files/Certum/SimplySign Desktop"
+
+echo "=== Installing Certum SimplySign Desktop ${VERSION} ==="
+
+# Idempotent: a cached/pre-provisioned image may already have it.
+if [ -d "$INSTALL_DIR" ]; then
+  echo "Already installed at: $INSTALL_DIR"
+  exit 0
+fi
+
+echo "Downloading installer..."
+curl -L "$URL" -o "$INSTALLER" --fail --max-time 600
+
+ACTUAL_SHA256=$(sha256sum "$INSTALLER" | awk '{print $1}')
+if [ "$EXPECTED_SHA256" != "$ACTUAL_SHA256" ]; then
+  echo "ERROR: checksum mismatch"
+  echo "  expected: $EXPECTED_SHA256"
+  echo "  actual:   $ACTUAL_SHA256"
+  exit 1
+fi
+echo "Checksum verified."
+
+echo "Running msiexec (silent)..."
+# Start-Process inherits this CWD, so the relative installer path resolves here.
+powershell -Command "Start-Process msiexec.exe -ArgumentList '/i','${INSTALLER}','/quiet','/norestart','/l*v','install.log','ALLUSERS=1','REBOOT=ReallySuppress' -Wait -NoNewWindow"
+
+if [ ! -d "$INSTALL_DIR" ]; then
+  echo "ERROR: installation directory not found after install"
+  echo "Last 20 lines of install.log:"
+  tail -20 install.log 2>/dev/null || echo "(no install.log)"
+  exit 1
+fi
+
+echo "SimplySign Desktop installed."

.github/scripts/sign-certum.ps1

@@ -0,0 +1,66 @@
+# Sign the given files with the Certum cloud certificate (selected by SHA1
+# thumbprint from the store) and verify each signature. Assumes SimplySign
+# Desktop has already authenticated (connect-simplysign.ps1).
+
+[CmdletBinding()]
+param(
+    [Parameter(Mandatory = $true)]
+    [string[]]$Files,
+    [string]$CertSha1     = $env:CERTUM_CERT_SHA1,
+    [string]$TimestampUrl = "http://time.certum.pl"
+)
+
+$ErrorActionPreference = "Stop"
+
+if (-not $CertSha1) { throw "CERTUM_CERT_SHA1 not provided." }
+$thumb = ($CertSha1 -replace '\s', '').ToUpperInvariant()
+
+# Resolve the newest signtool.exe from the installed Windows SDK(s).
+$kitsBin = "C:\Program Files (x86)\Windows Kits\10\bin"
+$signtool = Get-ChildItem -Path $kitsBin -Recurse -Filter signtool.exe -File -ErrorAction SilentlyContinue |
+    Where-Object { $_.FullName -like '*\x64\*' } |
+    Sort-Object { [version]$_.Directory.Parent.Name } |
+    Select-Object -Last 1 -ExpandProperty FullName
+if (-not $signtool) { throw "signtool.exe not found under $kitsBin" }
+Write-Host "Using signtool: $signtool"
+
+# The SimplySign virtual smart card registers in the store a moment after the
+# desktop client authenticates; poll for our certificate before signing.
+Write-Host "Waiting for certificate $thumb to appear in the store..."
+$deadline = (Get-Date).AddSeconds(120)
+$cert = $null
+$elapsed = 0
+do {
+    $cert = Get-ChildItem Cert:\CurrentUser\My, Cert:\LocalMachine\My -ErrorAction SilentlyContinue |
+        Where-Object { $_.Thumbprint -eq $thumb } | Select-Object -First 1
+    if ($cert) { break }
+    Start-Sleep -Seconds 3
+    $elapsed += 3
+    Write-Host "  ...still waiting (${elapsed}s)"
+} while ((Get-Date) -lt $deadline)
+
+if (-not $cert) {
+    Write-Host "Certificate not found. CurrentUser\My + LocalMachine\My contents:"
+    Get-ChildItem Cert:\CurrentUser\My, Cert:\LocalMachine\My -ErrorAction SilentlyContinue |
+        Select-Object Thumbprint, Subject, HasPrivateKey | Format-Table -AutoSize | Out-String | Write-Host
+    Write-Host "SimplySign processes:"
+    Get-Process -Name '*SimplySign*' -ErrorAction SilentlyContinue |
+        Select-Object Name, Id, Responding, MainWindowTitle | Format-Table -AutoSize | Out-String | Write-Host
+    throw "Certificate $thumb not found in the store - SimplySign authentication likely failed (see dump above)."
+}
+Write-Host "Found signing certificate: $($cert.Subject)"
+
+$failed = @()
+foreach ($file in $Files) {
+    if (-not (Test-Path $file)) { throw "File to sign not found: $file" }
+    Write-Host "=== Signing $file ==="
+    & $signtool sign /sha1 $thumb /fd sha256 /td sha256 /tr $TimestampUrl /v $file
+    if ($LASTEXITCODE -ne 0) { $failed += $file; continue }
+    & $signtool verify /pa /v $file
+    if ($LASTEXITCODE -ne 0) { $failed += $file }
+}
+
+if ($failed.Count -gt 0) {
+    throw "Signing/verification failed for: $($failed -join ', ')"
+}
+Write-Host "All binaries signed and verified."

.github/workflows/cd-dry-run.yml

@@ -0,0 +1,26 @@
+# This action simulates a CD pipeline without the package publishing
+# to ensure that changes don't break the real run
+name: Daybreak Dry-Run CD Pipeline
+
+on:
+  pull_request:
+    branches:
+      - master
+    paths:
+      - "Daybreak.Core/**"
+      - "Daybreak.Installer/**"
+      - "Daybreak.API/**"
+      - "Daybreak.Shared/**"
+      - "Daybreak.Windows/**"
+      - "Daybreak.Linux/**"
+      - ".github/scripts/**"
+      - ".github/workflows/cd-template.yml"
+      - ".github/workflows/cd-dry-run.yml"
+
+jobs:
+  cd:
+    uses: ./.github/workflows/cd-template.yml
+    with:
+      publishRelease: false
+      signBinaries: false
+    secrets: inherit

.github/workflows/cd-template.yml

@@ -0,0 +1,328 @@
+# Reusable CD pipeline with optional release publishing
+name: Daybreak CD Template
+
+on:
+  workflow_call:
+    inputs:
+      publishRelease:
+        description: "Whether to create and publish the GitHub release"
+        required: false
+        type: boolean
+        default: false
+      signBinaries:
+        description: "Whether to code-sign Windows binaries"
+        required: false
+        type: boolean
+        default: false
+
+jobs:
+  # ───────────────────────────────────────────────────────
+  #  Stage 1 — Build the x86 Windows-only components
+  #            (Injector + API) that both platforms need.
+  # ───────────────────────────────────────────────────────
+  build-x86:
+    runs-on: windows-2025
+
+    outputs:
+      version: ${{ steps.get_version.outputs.version }}
+
+    env:
+      Configuration: Release
+      Actions_Allow_Unsecure_Commands: true
+      CERTUM_OTP_URI: ${{ secrets.CERTUM_OTP_URI }}
+      CERTUM_USERID: ${{ secrets.CERTUM_USERID }}
+      CERTUM_CERT_SHA1: ${{ secrets.CERTUM_CERT_SHA1 }}
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v7
+        with:
+          fetch-depth: 0
+          submodules: recursive
+
+      - name: Get version
+        id: get_version
+        shell: pwsh
+        run: |
+          $version = (Select-String -Path Directory.Build.props -Pattern '<Version>(.*)</Version>').Matches.Groups[1].Value
+          echo "version=$version" >> $env:GITHUB_OUTPUT
+
+      - name: Install .NET
+        uses: actions/setup-dotnet@v6
+        with:
+          dotnet-version: "10.x"
+
+      - name: Publish x86 components
+        run: .\Scripts\PublishWindowsX86.ps1
+        shell: pwsh
+
+      # Certum SimplySign code signing. Binaries are signed only when explicitly
+      # requested and the Certum secrets are provisioned.
+      - name: Set up Certum SimplySign
+        if: inputs.signBinaries && env.CERTUM_OTP_URI != ''
+        shell: bash
+        run: |
+          chmod +x ./.github/scripts/install-simplysign.sh
+          ./.github/scripts/install-simplysign.sh
+          powershell -ExecutionPolicy Bypass -File "./.github/scripts/configure-simplysign.ps1"
+
+      - name: Authenticate Certum SimplySign
+        if: inputs.signBinaries && env.CERTUM_OTP_URI != ''
+        shell: bash
+        run: powershell -ExecutionPolicy Bypass -File "./.github/scripts/connect-simplysign.ps1"
+
+      - name: Sign x86 binaries
+        if: inputs.signBinaries && env.CERTUM_OTP_URI != ''
+        run: |
+          ./.github/scripts/sign-certum.ps1 -Files @(
+            "Publish/Injector/Daybreak.Injector.exe",
+            "Publish/Api/Daybreak.API.dll"
+          )
+        shell: pwsh
+
+      - name: Upload x86 artifacts
+        uses: actions/upload-artifact@v7
+        with:
+          name: x86-components
+          path: |
+            Publish/Injector/
+            Publish/Api/
+          retention-days: 1
+
+  # ───────────────────────────────────────────────────────
+  #  Stage 2 — Platform builds (parallel)
+  # ───────────────────────────────────────────────────────
+  build-windows:
+    needs: build-x86
+    runs-on: windows-2025
+
+    env:
+      Configuration: Release
+      Actions_Allow_Unsecure_Commands: true
+      CERTUM_OTP_URI: ${{ secrets.CERTUM_OTP_URI }}
+      CERTUM_USERID: ${{ secrets.CERTUM_USERID }}
+      CERTUM_CERT_SHA1: ${{ secrets.CERTUM_CERT_SHA1 }}
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v7
+        with:
+          fetch-depth: 0
+          submodules: recursive
+
+      - name: Install .NET
+        uses: actions/setup-dotnet@v6
+        with:
+          dotnet-version: "10.x"
+
+      - name: Setup project secrets
+        run: |
+          dotnet user-secrets --project Daybreak.Core\Daybreak.Core.csproj set AadApplicationId "${{ secrets.AadApplicationId }}"
+          dotnet user-secrets --project Daybreak.Core\Daybreak.Core.csproj set AadTenantId "${{ secrets.AadTenantId }}"
+          dotnet user-secrets --project Daybreak.Core\Daybreak.Core.csproj set ApmServiceAccount "${{ secrets.ApmServiceAccount }}"
+          dotnet user-secrets --project Daybreak.Core\Daybreak.Core.csproj set ApmServiceKey "${{ secrets.ApmServiceKey }}"
+          dotnet user-secrets --project Daybreak.Core\Daybreak.Core.csproj set ApmUri "${{ secrets.ApmUri }}"
+
+      - name: Download x86 artifacts
+        uses: actions/download-artifact@v8
+        with:
+          name: x86-components
+          path: Publish/
+
+      - name: Publish Windows x64
+        run: .\Scripts\PublishWindows.ps1
+        shell: pwsh
+
+      - name: Set up Certum SimplySign
+        if: inputs.signBinaries && env.CERTUM_OTP_URI != ''
+        shell: bash
+        run: |
+          chmod +x ./.github/scripts/install-simplysign.sh
+          ./.github/scripts/install-simplysign.sh
+          powershell -ExecutionPolicy Bypass -File "./.github/scripts/configure-simplysign.ps1"
+
+      - name: Authenticate Certum SimplySign
+        if: inputs.signBinaries && env.CERTUM_OTP_URI != ''
+        shell: bash
+        run: powershell -ExecutionPolicy Bypass -File "./.github/scripts/connect-simplysign.ps1"
+
+      - name: Sign Windows build
+        if: inputs.signBinaries && env.CERTUM_OTP_URI != ''
+        run: |
+          ./.github/scripts/sign-certum.ps1 -Files @(
+            "Publish/Daybreak.exe",
+            "Publish/Installer/Daybreak.Installer.exe"
+          )
+        shell: pwsh
+
+      - name: Upload Windows build
+        uses: actions/upload-artifact@v7
+        with:
+          name: windows-build
+          path: Publish/
+          retention-days: 1
+
+  build-linux:
+    needs: build-x86
+    runs-on: ubuntu-latest
+
+    env:
+      Configuration: Release
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v7
+        with:
+          fetch-depth: 0
+          submodules: recursive
+
+      - name: Install .NET
+        uses: actions/setup-dotnet@v6
+        with:
+          dotnet-version: "10.x"
+
+      - name: Setup project secrets
+        run: |
+          dotnet user-secrets --project Daybreak.Core/Daybreak.Core.csproj set AadApplicationId "${{ secrets.AadApplicationId }}"
+          dotnet user-secrets --project Daybreak.Core/Daybreak.Core.csproj set AadTenantId "${{ secrets.AadTenantId }}"
+          dotnet user-secrets --project Daybreak.Core/Daybreak.Core.csproj set ApmServiceAccount "${{ secrets.ApmServiceAccount }}"
+          dotnet user-secrets --project Daybreak.Core/Daybreak.Core.csproj set ApmServiceKey "${{ secrets.ApmServiceKey }}"
+          dotnet user-secrets --project Daybreak.Core/Daybreak.Core.csproj set ApmUri "${{ secrets.ApmUri }}"
+
+      - name: Download x86 artifacts
+        uses: actions/download-artifact@v8
+        with:
+          name: x86-components
+          path: Publish/
+
+      - name: Publish Linux x64
+        run: pwsh ./Scripts/PublishLinux.ps1
+        shell: bash
+
+      - name: Set executable permissions
+        run: |
+          chmod +x Publish/Daybreak
+          chmod +x Publish/Daybreak.Wayland.sh
+          chmod +x Publish/Installer/Daybreak.Installer
+
+      - name: Upload Linux build
+        uses: actions/upload-artifact@v7
+        with:
+          name: linux-build
+          path: Publish/
+          retention-days: 1
+
+  # ───────────────────────────────────────────────────────
+  #  Stage 3 — Package (always)
+  # ───────────────────────────────────────────────────────
+  package:
+    needs: [build-x86, build-windows, build-linux]
+    runs-on: ubuntu-latest
+
+    env:
+      Actions_Allow_Unsecure_Commands: true
+      Version: ${{ needs.build-x86.outputs.version }}
+
+    steps:
+      # ── Windows package ──
+      - name: Download Windows build
+        uses: actions/download-artifact@v8
+        with:
+          name: windows-build
+          path: windows-publish/
+
+      - name: Clean and zip Windows build
+        run: |
+          cd windows-publish
+          find . -name '*.pdb' -delete
+          find . -name '*.dbg' -delete
+          if [ -f Installer/Daybreak.Installer.exe ]; then
+            mv Installer/Daybreak.Installer.exe Installer/Daybreak.Installer.Temp.exe
+          fi
+          cd ..
+          cd windows-publish && zip -r ../daybreakv${{ env.Version }}.zip . && cd ..
+
+      # ── Linux package ──
+      - name: Download Linux build
+        uses: actions/download-artifact@v8
+        with:
+          name: linux-build
+          path: linux-publish/
+
+      - name: Clean and zip Linux build
+        run: |
+          cd linux-publish
+          find . -name '*.pdb' -delete
+          find . -name '*.dbg' -delete
+          if [ -f Installer/Daybreak.Installer ]; then
+            chmod +x Installer/Daybreak.Installer
+            mv Installer/Daybreak.Installer Installer/Daybreak.Installer.Temp
+          fi
+          chmod +x Daybreak Daybreak.Wayland.sh
+          cd ..
+          cd linux-publish && zip -r ../daybreakv${{ env.Version }}-linux.zip . && cd ..
+
+      - name: Upload release artifacts
+        uses: actions/upload-artifact@v7
+        with:
+          name: release-zips
+          path: |
+            daybreakv${{ env.Version }}.zip
+            daybreakv${{ env.Version }}-linux.zip
+          retention-days: 7
+
+  # ───────────────────────────────────────────────────────
+  #  Stage 4 — Release (optional)
+  # ───────────────────────────────────────────────────────
+  release:
+    needs: [build-x86, package]
+    runs-on: ubuntu-latest
+    if: ${{ inputs.publishRelease }}
+
+    env:
+      Actions_Allow_Unsecure_Commands: true
+      Version: ${{ needs.build-x86.outputs.version }}
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v7
+        with:
+          fetch-depth: 0
+          submodules: recursive
+
+      - name: Download release artifacts
+        uses: actions/download-artifact@v8
+        with:
+          name: release-zips
+          path: release-assets/
+
+      - name: Get Latest Tag
+        id: getLatestTag
+        uses: WyriHaximus/github-action-get-previous-tag@v2
+
+      - name: Generate changelog
+        id: changelog
+        run: |
+          changeLog=$(git log --no-merges --pretty="%h - %s (%an)<br />" ${{ steps.getLatestTag.outputs.tag }}..HEAD)
+          echo "content<<EOF" >> $GITHUB_OUTPUT
+          echo "$changeLog" >> $GITHUB_OUTPUT
+          echo "EOF" >> $GITHUB_OUTPUT
+
+        # ── Release ──
+      - name: Create release draft
+        uses: Xotl/cool-github-releases@v1.1.10
+        with:
+          mode: update
+          tag_name: v${{ env.Version }}
+          release_name: Daybreak v${{ env.Version }}
+          assets: release-assets/daybreakv${{ env.Version }}.zip;release-assets/daybreakv${{ env.Version }}-linux.zip
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          replace_assets: true
+          body_mrkdwn: |
+            ${{ steps.changelog.outputs.content }}
+          isDraft: true
+
+      - name: Publish release
+        run: gh release edit v${{ env.Version }} --draft=false
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/cd.yaml

@@ -1,109 +1,29 @@
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT license.
-
-# This continuous integration pipeline is triggered anytime a user pushes code to the repo.
-# This pipeline builds the Wpf project, runs unit tests, then saves the MSIX build artifact.
-name:  Daybreak CD Pipeline
+# This continuous delivery pipeline is triggered on pushes to master.
+# It builds the Windows x86 components (Injector + API), then builds
+# the Windows x64 and Linux x64 platform bundles in parallel, and
+# finally packages both into release zips and publishes a GitHub release.
+name: Daybreak CD Pipeline
 
 on:
   push:
     branches:
       - master
     paths:
-      - "Daybreak/**"
+      - "Daybreak.Core/**"
       - "Daybreak.Installer/**"
-      
+      - "Daybreak.API/**"
+      - "Daybreak.Shared/**"
+      - "Daybreak.Windows/**"
+      - "Daybreak.Linux/**"
+      - ".github/scripts/**"
+      - ".github/workflows/cd-template.yml"
+      - ".github/workflows/cd.yaml"
+  workflow_dispatch:
+
 jobs:
-
-  build:
-
-    strategy:
-      matrix:
-        targetplatform: [x86]
-
-    runs-on: windows-latest
-
-    env:
-      Configuration: Release
-      Solution_Path: Daybreak.sln
-      Test_Project_Path: Daybreak.Tests\Daybreak.Tests.csproj
-      Wpf_Project_Path: Daybreak\Daybreak.csproj
-      Actions_Allow_Unsecure_Commands: true
-
-    steps:
-    - name: Checkout
-      uses: actions/checkout@v3
-      with:
-        fetch-depth: 0
-
-    - name: Get Latest Tag
-      id: getLatestTag
-      uses: WyriHaximus/github-action-get-previous-tag@v1
-
-    - name: Generate changelog
-      id: gen_changelog
-      run: |
-        $changeLog = git log --no-merges --pretty="%h - %s (%an)<br />" ${{ env.LatestReleaseTag }}..HEAD
-        echo "::set-env name=Changelog::$changeLog"
-      env:
-        LatestReleaseTag: ${{steps.getLatestTag.outputs.tag}}
-
-    - name: Print changelog
-      run: |
-        echo "${{ env.Changelog }}"
-
-    - name: Install .NET Core
-      uses: actions/setup-dotnet@v3
-      with:
-        dotnet-version: '7.x'
-
-    - name: Setup MSBuild.exe
-      uses: microsoft/setup-msbuild@v1.3.1
-
-    - name: Setup project secrets
-      run: |
-        dotnet user-secrets --project Daybreak\Daybreak.csproj set AadApplicationId "${{ secrets.AadApplicationId }}"
-        dotnet user-secrets --project Daybreak\Daybreak.csproj set AadTenantId "${{ secrets.AadTenantId }}"
-
-    - name:  Restore project
-      run: msbuild $env:Solution_Path /t:Restore /p:Configuration=$env:Configuration /p:RuntimeIdentifier=$env:RuntimeIdentifier
-      env:
-        RuntimeIdentifier: win-${{ matrix.targetplatform }}
-
-    - name: Build Daybreak project
-      run: dotnet build Daybreak -c $env:Configuration
-
-    - name: Set version variable
-      run: |
-        $version = .\Scripts\GetBuildVersion.ps1
-        echo "::set-env name=Version::$version"
-
-    - name: Create publish launcher files
-      run: dotnet publish .\Daybreak\Daybreak.csproj -c $env:Configuration -r $env:RuntimeIdentifier -p:PublishReadyToRun=true -p:PublishSingleFile=true --self-contained true -o .\Publish
-      env:
-        RuntimeIdentifier: win-${{ matrix.targetplatform }}
-
-    - name: Create publish installer files
-      run: dotnet publish .\Daybreak.Installer\Daybreak.Installer.csproj -c $env:Configuration -r $env:RuntimeIdentifier -p:PublishReadyToRun=true -p:PublishSingleFile=true --self-contained true -o .\Publish
-      env:
-        RuntimeIdentifier: win-${{ matrix.targetplatform }}
-
-    - name: Pack publish files
-      run: |
-        Write-Host $env
-        .\Scripts\BuildRelease.ps1 -version $env:Version
-      shell: pwsh
-
-    - name: Publish release
-      uses: Xotl/cool-github-releases@v1.1.8
-      with:
-        mode: update
-        tag_name: v${{ env.Version }}
-        release_name: Daybreak v${{ env.Version }}
-        assets: .\Publish\daybreakv${{ env.Version }}.zip
-        github_token: ${{ env.GITHUB_TOKEN }}
-        replace_assets: true
-        body_mrkdwn: ${{ env.Changelog }}
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-    
+  cd:
+    uses: ./.github/workflows/cd-template.yml
+    with:
+      publishRelease: true
+      signBinaries: true
+    secrets: inherit

.github/workflows/ci.yaml

@@ -1,53 +1,66 @@
-# Copyright (c) Microsoft Corporation.
-# Licensed under the MIT license.
-
-# This continuous integration pipeline is triggered anytime a user pushes code to the repo.
-# This pipeline builds the Wpf project, runs unit tests, then saves the MSIX build artifact.
-name:  Daybreak CI Pipeline
+# This continuous integration pipeline is triggered on pull requests to master.
+# It validates that both the Windows and Linux builds compile successfully.
+name: Daybreak CI Pipeline
 
 on:
-  push:
-    branches:
-      - master
   pull_request:
     branches:
       - master
 
 jobs:
-
-  build:
-
-    strategy:
-      matrix:
-        targetplatform: [x86]
-
+  build-windows:
     runs-on: windows-latest
 
     env:
-      Solution_Path: Daybreak.sln
-      Test_Project_Path: Daybreak.Tests\Daybreak.Tests.csproj
-      Wpf_Project_Path: Daybreak\Daybreal.csproj
-      Actions_Allow_Unsecure_Commands: true
+      Configuration: Debug
 
     steps:
-    - name: Checkout
-      uses: actions/checkout@v3
-      with:
-        fetch-depth: 0
+      - name: Checkout
+        uses: actions/checkout@v7
+        with:
+          fetch-depth: 0
+          submodules: recursive
 
-    - name: Install .NET Core
-      uses: actions/setup-dotnet@v3
-      with:
-        dotnet-version: '7.x'
+      - name: Install .NET
+        uses: actions/setup-dotnet@v6
+        with:
+          dotnet-version: "10.x"
 
-    - name: Setup MSBuild.exe
-      uses: microsoft/setup-msbuild@v1.3.1
+      - name: Build Windows project
+        run: dotnet build Daybreak.Windows/Daybreak.Windows.csproj -c $env:Configuration
 
-    - name: Execute Unit Tests
-      run: dotnet test $env:Test_Project_Path
+      - name: Build Injector
+        run: dotnet build Daybreak.Injector/Daybreak.Injector.csproj -c $env:Configuration
 
-    - name:  Restore the Wpf application to populate the obj folder
-      run: msbuild $env:Solution_Path /t:Restore /p:Configuration=$env:Configuration /p:RuntimeIdentifier=$env:RuntimeIdentifier
-      env:
-        Configuration: Debug
-        RuntimeIdentifier: win-${{ matrix.targetplatform }}
+      - name: Build API
+        run: dotnet build Daybreak.API/Daybreak.API.csproj -c $env:Configuration
+
+      - name: Build Installer
+        run: dotnet build Daybreak.Installer/Daybreak.Installer.csproj -c $env:Configuration
+
+      - name: Run tests
+        run: dotnet test Daybreak.Tests/Daybreak.Tests.csproj -c $env:Configuration
+
+  build-linux:
+    runs-on: ubuntu-latest
+
+    env:
+      Configuration: Debug
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v7
+        with:
+          fetch-depth: 0
+          submodules: recursive
+
+      - name: Install .NET
+        uses: actions/setup-dotnet@v6
+        with:
+          dotnet-version: "10.x"
+
+      - name: Build Linux project
+        run: dotnet build Daybreak.Linux/Daybreak.Linux.csproj -c $Configuration
+
+      - name: Build Installer (linux-x64)
+        run: dotnet build Daybreak.Installer/Daybreak.Installer.csproj -c $Configuration

.github/workflows/codeql-analysis.yml

@@ -12,10 +12,7 @@
 name: "CodeQL"
 
 on:
-  push:
-    branches: [ "master" ]
   pull_request:
-    # The branches below must be a subset of the branches above
     branches: [ "master" ]
   schedule:
     - cron: '41 12 * * 6'
@@ -36,13 +33,22 @@ jobs:
         # CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python', 'ruby' ]
         # Learn more about CodeQL language support at https://aka.ms/codeql-docs/language-support
 
+    env:
+      Configuration: Release
+      Solution_Path: Daybreak.slnx
+      Test_Project_Path: Daybreak.Tests\Daybreak.Tests.csproj
+      Wpf_Project_Path: Daybreak.Windows\Daybreak.Windows.csproj
+      Actions_Allow_Unsecure_Commands: true
+
     steps:
-    - name: Checkout repository
-      uses: actions/checkout@v3
+    - name: Checkout
+      uses: actions/checkout@v7
+      with:
+        fetch-depth: 0
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@v2
+      uses: github/codeql-action/init@v3
       with:
         languages: ${{ matrix.language }}
         # If you wish to specify custom queries, you can do so here or in a config file.
@@ -57,12 +63,12 @@ jobs:
     # If this step fails, then you should remove it and run the build manually (see below)
 
     - name: Install .NET Core
-      uses: actions/setup-dotnet@v3
+      uses: actions/setup-dotnet@v6
       with:
-        dotnet-version: '6.x'
+        dotnet-version: '10.x'
 
-    - name: Autobuild
-      uses: github/codeql-action/autobuild@v2
+    #- name: Autobuild
+    #  uses: github/codeql-action/autobuild@v2
 
     # ℹ️ Command-line programs to run using the OS shell.
     # 📚 See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun
@@ -74,5 +80,8 @@ jobs:
     #   echo "Run, Build Application using script"
     #   ./location_of_script_within_repo/buildscript.sh
 
+    - name: Build Daybreak project
+      run: dotnet build Daybreak.Windows -c $env:Configuration --property:SolutionDir=$env:GITHUB_WORKSPACE
+
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v2
+      uses: github/codeql-action/analyze@v3

.github/workflows/create-build-release-branch.yml

@@ -0,0 +1,12 @@
+# Manually trigger to create a new release branch with bumped build version
+name: Create Build Release Branch
+
+on:
+  workflow_dispatch:
+
+jobs:
+  create-release:
+    uses: ./.github/workflows/create-release-branch-template.yml
+    with:
+      versionBump: "*.*.^.0"
+    secrets: inherit

.github/workflows/create-major-release-branch.yml

@@ -0,0 +1,12 @@
+# Manually trigger to create a new release branch with bumped major version
+name: Create Major Release Branch
+
+on:
+  workflow_dispatch:
+
+jobs:
+  create-release:
+    uses: ./.github/workflows/create-release-branch-template.yml
+    with:
+      versionBump: "^.0.0.0"
+    secrets: inherit

.github/workflows/create-minor-release-branch.yml

@@ -0,0 +1,12 @@
+# Manually trigger to create a new release branch with bumped minor version
+name: Create Minor Release Branch
+
+on:
+  workflow_dispatch:
+
+jobs:
+  create-release:
+    uses: ./.github/workflows/create-release-branch-template.yml
+    with:
+      versionBump: "*.^.0.0"
+    secrets: inherit

.github/workflows/create-release-branch-template.yml

@@ -0,0 +1,66 @@
+# Reusable template for creating release branches with version bumps
+name: Create Release Branch Template
+
+on:
+  workflow_call:
+    inputs:
+      versionBump:
+        description: "Version bump command: bump-major, bump-minor, bump-build, bump-revision"
+        required: true
+        type: string
+
+jobs:
+  create-release-branch:
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: write
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v7
+        with:
+          fetch-depth: 0
+          token: ${{ secrets.RELEASE_PAT }}
+
+      - name: Configure Git
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+
+      - name: Bump version in Directory.Build.props
+        id: bump
+        uses: vers-one/dotnet-project-version-updater@v1.8
+        with:
+          file: "Directory.Build.props"
+          version: ${{ inputs.versionBump }}
+
+      - name: Check if release branch already exists
+        id: check_branch
+        run: |
+          branch_name="release/${{ steps.bump.outputs.newVersion }}"
+          if git ls-remote --heads origin "$branch_name" | grep -q "$branch_name"; then
+            echo "Branch $branch_name already exists"
+            echo "exists=true" >> $GITHUB_OUTPUT
+          else
+            echo "Branch $branch_name does not exist"
+            echo "exists=false" >> $GITHUB_OUTPUT
+          fi
+
+      - name: Create release branch
+        if: steps.check_branch.outputs.exists == 'false'
+        run: |
+          new_version="${{ steps.bump.outputs.newVersion }}"
+          branch_name="release/$new_version"
+          
+          # Create new branch from master
+          git checkout -b "$branch_name"
+          
+          # Commit the version change (already updated by the action)
+          git add Directory.Build.props
+          git commit -m "Bump version to $new_version"
+          
+          # Push the new branch
+          git push origin "$branch_name"
+          
+          echo "✅ Created release branch: $branch_name with version $new_version"

.github/workflows/create-revision-release-branch.yml

@@ -0,0 +1,20 @@
+# Automatically creates a new release branch with bumped revision
+# after a successful CD pipeline run on master
+name: Create Revision Release Branch
+
+on:
+  workflow_run:
+    workflows: ["Daybreak CD Pipeline"]
+    types:
+      - completed
+    branches:
+      - master
+
+jobs:
+  create-release:
+    # Only run if the CD pipeline succeeded
+    if: ${{ github.event.workflow_run.conclusion == 'success' }}
+    uses: ./.github/workflows/create-release-branch-template.yml
+    with:
+      versionBump: bump-revision
+    secrets: inherit

.github/workflows/label-merged-issues.yaml

@@ -0,0 +1,47 @@
+name: Label Merged Issues
+
+on:
+  pull_request:
+    types: [closed]
+    branches:
+      - 'release/**'
+
+jobs:
+  label-issues:
+    if: github.event.pull_request.merged == true
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Label linked issues as merged
+        uses: actions/github-script@v9
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          script: |
+            const prBody = context.payload.pull_request.body || '';
+            const prTitle = context.payload.pull_request.title || '';
+
+            // Match issue references like #123, fixes #123, closes #123, resolves #123
+            const issuePattern = /(?:close[sd]?|fix(?:e[sd])?|resolve[sd]?)?[\s:]*#(\d+)/gi;
+            const issueNumbers = new Set();
+
+            // Search in PR body and title
+            const textToSearch = `${prTitle} ${prBody}`;
+            let match;
+            while ((match = issuePattern.exec(textToSearch)) !== null) {
+              issueNumbers.add(parseInt(match[1]));
+            }
+
+            // Apply 'merged' label to each linked issue
+            for (const issueNumber of issueNumbers) {
+              try {
+                await github.rest.issues.addLabels({
+                  owner: context.repo.owner,
+                  repo: context.repo.repo,
+                  issue_number: issueNumber,
+                  labels: ['merged']
+                });
+                console.log(`Added 'merged' label to issue #${issueNumber}`);
+              } catch (error) {
+                console.log(`Failed to label issue #${issueNumber}: ${error.message}`);
+              }
+            }

.github/workflows/version_check.yaml

@@ -1,48 +1,55 @@
-name:  Daybreak Version Check
+name: Daybreak Version Check
 
 on:
   pull_request:
     branches:
       - master
     paths:
-      - "Daybreak/**"
+      - "Daybreak.Core/**"
       - "Daybreak.Installer/**"
+      - "Daybreak.API/**"
+      - "Daybreak.Shared/**"
+      - "Daybreak.Windows/**"
+      - "Daybreak.Linux/**"
 
 jobs:
-
   check_version:
-
     strategy:
       matrix:
         targetplatform: [x64]
 
-    runs-on: windows-latest
+    runs-on: ubuntu-latest
 
     env:
       Configuration: Release
-      Solution_Path: Daybreak.sln
+      Solution_Path: Daybreak.slnx
       Actions_Allow_Unsecure_Commands: true
 
     steps:
-    - name: Checkout
-      uses: actions/checkout@v3
-      with:
-        fetch-depth: 0
-    
-    - name: Get Latest Tag
-      id: getLatestTag
-      uses: WyriHaximus/github-action-get-previous-tag@v1
+      - name: Checkout
+        uses: actions/checkout@v7
+        with:
+          fetch-depth: 0
 
-    - name: Build Daybreak project
-      run: dotnet build Daybreak -c $env:Configuration
+      - name: Install .NET Core
+        uses: actions/setup-dotnet@v6
+        with:
+          dotnet-version: "10.x"
 
-    - name: Set version variable
-      run: |
-        $version = .\Scripts\GetBuildVersion.ps1
-        echo "::set-env name=Version::$version"
+      - name: Get Latest Tag
+        id: getLatestTag
+        uses: WyriHaximus/github-action-get-previous-tag@v2
+
+      - name: Build Daybreak project
+        run: dotnet build Daybreak.Linux -c $Configuration --property:SolutionDir=$GITHUB_WORKSPACE
+
+      - name: Get version
+        id: get_version
+        run: |
+          version=$(grep '<Version>' Directory.Build.props | sed 's/.*<Version>\(.*\)<\/Version>.*/\1/')
+          echo "version=$version" >> $GITHUB_OUTPUT
+
+      - name: Check version difference
+        run: pwsh ./Scripts/CompareVersions.ps1 -currentVersion ${{ steps.get_version.outputs.version }} -lastVersion ${{ steps.getLatestTag.outputs.tag }}
+        shell: pwsh
 
-    - name: Check version difference
-      run: |
-        .\Scripts\CompareVersions -currentVersion ${{ env.Version }} -lastVersion ${{ env.LatestReleaseTag }}
-      env:
-        LatestReleaseTag: ${{ steps.getLatestTag.outputs.tag }}

.gitignore

@@ -28,12 +28,16 @@ x86/
 [Aa][Rr][Mm]/
 [Aa][Rr][Mm]64/
 bld/
+build/
 [Bb]in/
 [Oo]bj/
 [Oo]ut/
 [Ll]og/
 [Ll]ogs/
 
+# Local NuGet packages folder (per-machine isolation)
+.packages/
+
 # Visual Studio 2015/2017 cache/options directory
 .vs/
 # Uncomment if you have tasks that create the project's static files in wwwroot
@@ -177,8 +181,8 @@ DocProject/Help/*.hhp
 DocProject/Help/Html2
 DocProject/Help/html
 
-# Click-Once directory
-publish/
+# Click-Once / local publish directories
+[Pp]ublish/
 
 # Publish Web Output
 *.[Pp]ublish.xml
@@ -361,4 +365,8 @@ MigrationBackup/
 .ionide/
 
 # Fody - auto-generated XML schema
-FodyWeavers.xsd
+FodyWeavers.xsd
+
+.idea
+
+Daybreak/wwwroot/wiki/*

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "Daybreak.wiki"]
+	path = Daybreak.wiki
+	url = https://github.com/gwdevhub/Daybreak.wiki.git

.nvim.lua

@@ -0,0 +1,108 @@
+-- Per-project Neovim config for the Daybreak repo.
+-- Auto-sourced when nvim is started inside the repo, provided the user has
+-- `vim.o.exrc = true` in their config (or runs `:set exrc`). Neovim 0.9+
+-- prompts to trust this file on first load.
+--
+-- Commands added:
+--   :DaybreakStageX86 [Config]   build x86 components via wine and stage
+--                                them into Daybreak.Linux/bin/<Config>/...
+--                                /{Injector,Api}/ (default Config: Debug)
+--   :DaybreakRunLinux            run Daybreak.Linux via `dotnet run` in a
+--                                terminal split (honors launchSettings.json,
+--                                which easy-dot-net's launcher does not)
+--
+-- Note: a Linux/wine attach-debugger workflow was attempted (winedbg --gdb
+-- stub *and* native Linux gdb -p attach), but both freeze GW reliably because
+-- of ptrace/wineserver interactions that wine doesn't tolerate. For now,
+-- prefer logging-based debugging via the API's console + log file in the
+-- game directory (Daybreak.API<YYYYMMDD>.log next to Gw.exe).
+
+local repo = vim.fn.fnamemodify(debug.getinfo(1, 'S').source:sub(2), ':p:h')
+local scripts = repo .. '/Scripts'
+
+-- ───── Progress notification with spinner ──────────────────────────────────
+-- Uses nvim-notify / snacks.nvim's `id`/`replace` semantics to update a
+-- single notification in place. Falls back to plain notify if the backend
+-- doesn't support replace (the spinner just stops updating).
+local SPINNER = { '⣷', '⣯', '⣟', '⡿', '⢿', '⣻', '⣽', '⣾' }
+
+local function start_progress(title, message)
+    -- stable id so snacks.nvim/nvim-notify replace the same notification
+    local id = 'daybreak-' .. title:gsub('%s+', '-') .. '-' .. tostring(vim.uv.hrtime())
+    local state = { title = title, msg = message, frame = 1, done = false, id = id }
+    local function render()
+        local icon = state.done and '' or (SPINNER[state.frame] .. ' ')
+        local opts = {
+            title = state.title,
+            id = state.id,
+            timeout = state.done and 4000 or false,
+            hide_from_history = not state.done,
+            icon = state.done and '✓' or nil,
+        }
+        if state.notif then opts.replace = state.notif end
+        state.notif = vim.notify(icon .. state.msg, vim.log.levels.INFO, opts)
+    end
+    render()
+    state.timer = vim.uv.new_timer()
+    state.timer:start(80, 80, vim.schedule_wrap(function()
+        if state.done then return end
+        state.frame = (state.frame % #SPINNER) + 1
+        render()
+    end))
+    return {
+        update = function(msg) state.msg = msg; render() end,
+        finish = function(ok, msg)
+            state.done = true
+            if state.timer then state.timer:stop(); state.timer:close(); state.timer = nil end
+            state.msg = msg or state.msg
+            local final_opts = {
+                title = state.title,
+                id = state.id,
+                timeout = 4000,
+                icon = ok and '✓' or '✗',
+            }
+            if state.notif then final_opts.replace = state.notif end
+            vim.notify((ok and '✓ ' or '✗ ') .. state.msg,
+                ok and vim.log.levels.INFO or vim.log.levels.ERROR, final_opts)
+        end,
+    }
+end
+
+-- ───── :DaybreakStageX86 [Config] ─────────────────────────────────────────
+vim.api.nvim_create_user_command('DaybreakStageX86', function(opts)
+    local config = opts.args ~= '' and opts.args or 'Debug'
+    local progress = start_progress('Daybreak StageX86', 'Building x86 components (' .. config .. ')…')
+    vim.fn.jobstart({ scripts .. '/StageX86ForDebug.sh', config, '' }, {
+        cwd = repo,
+        on_exit = function(_, code)
+            vim.schedule(function()
+                if code == 0 then
+                    progress.finish(true, 'Staged x86 (' .. config .. ')')
+                else
+                    progress.finish(false, 'Stage failed (exit ' .. code ..
+                        '). See /tmp/wine-injector-publish.log, /tmp/wine-api-publish.log')
+                end
+            end)
+        end,
+        stdout_buffered = false,
+        stderr_buffered = false,
+    })
+end, {
+    nargs = '?',
+    complete = function() return { 'Debug', 'Release' } end,
+    desc = 'Build x86 components in wine and stage into Daybreak.Linux output',
+})
+
+-- ───── :DaybreakRunLinux ───────────────────────────────────────────────────
+-- easy-dot-net launches the produced binary directly, bypassing launchSettings.json.
+-- This runs Daybreak.Linux through `dotnet run`, which honors the environment
+-- variables (GDK_BACKEND, WEBKIT_DISABLE_DMABUF_RENDERER, etc.) declared there.
+-- Opens in the current window (no split) so it integrates with normal buffer
+-- navigation; Ctrl-\ Ctrl-N to leave terminal mode, then your usual buffer
+-- bindings work.
+vim.api.nvim_create_user_command('DaybreakRunLinux', function()
+    vim.cmd('enew')
+    vim.fn.termopen({ 'dotnet', 'run', '--project', 'Daybreak.Linux/Daybreak.Linux.csproj', '-c', 'Debug' },
+                    { cwd = repo })
+    vim.cmd('startinsert')
+end, { desc = 'Run Daybreak.Linux via dotnet run in the current window' })

.vscode/launch.json

@@ -0,0 +1,45 @@
+{
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Debug Daybreak.Linux",
+            "type": "dotnet",
+            "request": "launch",
+            "projectPath": "${workspaceFolder}/Daybreak.Linux/Daybreak.Linux.csproj",
+            "console": "integratedTerminal",
+            "justMyCode": true,
+            "stopAtEntry": false,
+            "suppressJITOptimizations": false,
+            "symbolOptions": {
+                "searchMicrosoftSymbolServer": false,
+                "searchNuGetOrgSymbolServer": false
+            },
+            "logging": {
+                "engineLogging": false,
+                "moduleLoad": false,
+                "exceptions": false,
+                "browserStdOut": false
+            }
+        },
+        {
+            "name": "Debug Daybreak.Windows",
+            "type": "dotnet",
+            "request": "launch",
+            "projectPath": "${workspaceFolder}/Daybreak.Windows/Daybreak.Windows.csproj",
+            "console": "integratedTerminal",
+            "justMyCode": true,
+            "stopAtEntry": false,
+            "suppressJITOptimizations": false,
+            "symbolOptions": {
+                "searchMicrosoftSymbolServer": false,
+                "searchNuGetOrgSymbolServer": false
+            },
+            "logging": {
+                "engineLogging": false,
+                "moduleLoad": false,
+                "exceptions": false,
+                "browserStdOut": false
+            }
+        }
+    ]
+}

.vscode/settings.json

@@ -0,0 +1,29 @@
+{
+  "dotnet.defaultSolution": "Daybreak.slnx",
+  "omnisharp.projectLoadTimeout": 120,
+  "csharp.semanticHighlighting.enabled": true,
+  "search.followSymlinks": false,
+  "search.exclude": {
+    "**/.git": true,
+    "**/.vs": true,
+    "**/bin": true,
+    "**/obj": true,
+    "**/node_modules": true,
+    "**/.idea": true,
+    "**/Publish": true,
+  },
+  "files.watcherExclude": {
+    "**/.git/**": true,
+    "**/.vs/**": true,
+    "**/bin/**": true,
+    "**/obj/**": true,
+    "**/node_modules/**": true,
+    "**/Publish": true,
+  },
+  "files.exclude": {
+    "**/.vs": true,
+    "**/bin": true,
+    "**/obj": true,
+    "**/Publish": true
+  }
+}

.vscode/tasks.json

@@ -0,0 +1,29 @@
+{
+    "version": "2.0.0",
+    "tasks": [
+        {
+            "label": "build-linux",
+            "command": "dotnet",
+            "type": "process",
+            "args": [
+                "build",
+                "${workspaceFolder}/Daybreak.Linux/Daybreak.Linux.csproj",
+                "/property:GenerateFullPaths=true",
+                "/consoleloggerparameters:NoSummary"
+            ],
+            "problemMatcher": "$msCompile"
+        },
+        {
+            "label": "build-windows",
+            "command": "dotnet",
+            "type": "process",
+            "args": [
+                "build",
+                "${workspaceFolder}/Daybreak.Windows/Daybreak.Windows.csproj",
+                "/property:GenerateFullPaths=true",
+                "/consoleloggerparameters:NoSummary"
+            ],
+            "problemMatcher": "$msCompile"
+        }
+    ]
+}

CONTRIBUTING.md

@@ -0,0 +1,113 @@
+# Contributing to Daybreak
+
+## Getting started
+
+Install the prerequisites listed under
+[Build Requirements](README.md#build-requirements), then clone with submodules:
+
+```bash
+git clone --recurse-submodules https://github.com/AlexMacocian/Daybreak.git
+```
+
+Read the [Architecture Overview](README.md#architecture-overview) before making
+changes so you put code in the right project.
+
+## Branching model
+
+There is always exactly one active release branch, named `release/[version]`
+(for example `release/0.9.10.20`). It is the integration branch: all work
+targets it, and `master` only receives finished releases.
+
+```mermaid
+flowchart LR
+    subgraph cycle["Release cycle"]
+        direction LR
+        R["release/0.9.10.20<br/><i>active release branch</i>"]
+        F["feature branch<br/><i>one per change</i>"]
+        R -->|fork| F
+        F -->|"PR, squash merge"| R
+    end
+    R -->|"PR, rebase merge"| M["master"]
+    M --> CD["CD pipeline<br/>builds and publishes the release"]
+    CD -->|"job bumps the revision"| N["release/0.9.10.21<br/><i>next active release branch</i>"]
+```
+
+### Feature work
+
+1. Branch off the current release branch.
+2. Implement one feature or fix. Keep the branch scoped to a single change.
+3. Open a PR against the release branch.
+4. Merge with **squash**, so each feature lands as one commit.
+
+### Releasing
+
+1. Open a PR from the release branch onto `master`.
+2. Merge with **rebase**, keeping full history. Each feature stays a single
+   commit on `master`.
+3. The [CD pipeline](.github/workflows/cd.yaml) runs on the push to `master`,
+   builds the Windows and Linux bundles and publishes a GitHub release.
+4. On success,
+   [create-revision-release-branch.yml](.github/workflows/create-revision-release-branch.yml)
+   bumps the revision and creates the next `release/[version]` branch
+   automatically. That becomes the new active release branch.
+
+Do not push directly to `master` or create release branches by hand.
+
+## Versions
+
+The version lives in a single place,
+[`Directory.Build.props`](Directory.Build.props), and follows
+`major.minor.build.revision`. It is bumped by the release branch creation job,
+not manually.
+
+Revision bumps happen automatically after every release. For the other
+components, run the matching workflow manually before starting the next cycle:
+
+| Workflow                                                                                   | Bumps                 |
+| ------------------------------------------------------------------------------------------ | --------------------- |
+| [create-major-release-branch.yml](.github/workflows/create-major-release-branch.yml)       | `^.0.0.0`             |
+| [create-minor-release-branch.yml](.github/workflows/create-minor-release-branch.yml)       | `*.^.0.0`             |
+| [create-build-release-branch.yml](.github/workflows/create-build-release-branch.yml)       | `*.*.^.0`             |
+| [create-revision-release-branch.yml](.github/workflows/create-revision-release-branch.yml) | `*.*.*.^` (automatic) |
+
+All four delegate to
+[create-release-branch-template.yml](.github/workflows/create-release-branch-template.yml).
+
+## Pull requests
+
+Title format follows the existing history: a short description, plus the issue
+reference when it closes one.
+
+```text
+Setup stable computer name in Wine prefix (Closes #1609)
+```
+
+[label-merged-issues.yaml](.github/workflows/label-merged-issues.yaml) parses
+`close/fix/resolve #N` from the title and body of PRs merged into a release
+branch and labels the linked issues, so use those keywords.
+
+## Checks
+
+[CI](.github/workflows/ci.yaml) and
+[version_check.yaml](.github/workflows/version_check.yaml) only trigger on PRs
+targeting `master`, so a feature PR onto a release branch is not covered by
+them. Run the equivalent locally before opening one:
+
+```bash
+dotnet build Daybreak.Linux/Daybreak.Linux.csproj      # or Daybreak.Windows on Windows
+dotnet test Daybreak.Tests/Daybreak.Tests.csproj
+```
+
+The version check fails a PR to `master` if the version in
+`Directory.Build.props` is not ahead of the latest tag. This is why the bump
+must come from the release branch job.
+
+## Code style
+
+Formatting rules are in [`.editorconfig`](.editorconfig) and are enforced by the
+compiler and analyzers; keep the build warning-free.
+
+Tests live in [`Daybreak.Tests`](Daybreak.Tests), use MSTest with
+FluentAssertions and NSubstitute, and only reference `Daybreak.Core`. If you
+want platform code covered by tests, put the testable part in
+[`Daybreak.Shared`](Daybreak.Shared).

Daybreak.API/Configuration/BuildInfo.cs

@@ -0,0 +1,11 @@
+namespace Daybreak.API.Configuration;
+
+public static class BuildInfo
+{
+    public const string Configuration =
+#if DEBUG
+            "Debug";
+#else
+            "Release";
+#endif
+}

Daybreak.API/Configuration/WebApplicationBuilderExtensions.cs

@@ -0,0 +1,35 @@
+namespace Daybreak.API.Configuration;
+
+public static class WebApplicationBuilderExtensions
+{
+    public static WebApplicationBuilder WithConfiguration(this WebApplicationBuilder builder)
+    {
+        var config = BuildInfo.Configuration;
+        var appSettingsStream = GetManifestResourceStream($"Daybreak.API.Configuration.appsettings.json") ?? throw new InvalidOperationException("Failed to load appsettings.json");
+        var appSettingsConfigStream = GetManifestResourceStream($"Daybreak.API.Configuration.appsettings.{config}.json") ?? throw new InvalidOperationException($"Failed to load appsettings.{config}.json");
+        
+        // Clear default file-based configuration sources that cause unnecessary reload events
+        builder.Configuration.Sources.Clear();
+        
+        builder.Configuration
+            .AddJsonStream(appSettingsStream)
+            .AddJsonStream(appSettingsConfigStream)
+            .AddEnvironmentVariables();
+
+        builder.WebHost.UseSetting(WebHostDefaults.PreventHostingStartupKey, "true");
+        return builder;
+    }
+
+    private static Stream? GetManifestResourceStream(string name)
+    {
+        var assembly = typeof(WebApplicationBuilderExtensions).Assembly;
+        var resourceName = assembly.GetManifestResourceNames()
+            .FirstOrDefault(n => n.EndsWith(name, StringComparison.OrdinalIgnoreCase));
+        if (resourceName is null)
+        {
+            return default;
+        }
+
+        return assembly.GetManifestResourceStream(resourceName);
+    }
+}

Daybreak.API/Configuration/appsettings.Debug.json

@@ -0,0 +1,2 @@
+{
+}

Daybreak.API/Configuration/appsettings.Release.Debug.json

@@ -0,0 +1,10 @@
+{
+  "Logging": {
+    "MinimumLevel": {
+      "Default": "Debug",
+      "Override": {
+        "Microsoft": "Warning"
+      }
+    }
+  }
+}

Daybreak.API/Configuration/appsettings.Release.json

@@ -0,0 +1,2 @@
+{
+}

Daybreak.API/Configuration/appsettings.json

@@ -0,0 +1,13 @@
+{
+  "Logging": {
+    "MinimumLevel": {
+      "Default": "Debug",
+      "Override": {
+        "Microsoft": "Debug"
+      }
+    }
+  },
+  "Correlation": {
+    "Header": "X-Correlation-Vector"
+  }
+}

Daybreak.API/Controllers/Rest/CharacterSelectController.cs

@@ -0,0 +1,51 @@
+using System.Core.Extensions;
+using Daybreak.API.Interop.GuildWars;
+using Daybreak.API.Services;
+using Daybreak.Shared.Models.Api;
+using Microsoft.AspNetCore.Mvc;
+using Net.Sdk.Web;
+
+namespace Daybreak.API.Controllers.Rest;
+
+[GenerateController("api/v1/rest/character-select")]
+[Tags("Character Select")]
+public sealed class CharacterSelectController(
+    CharacterSelectService characterSelectService)
+{
+    private readonly CharacterSelectService characterSelectService = characterSelectService.ThrowIfNull();
+
+    [GenerateGet]
+    [EndpointName("GetCharacterSelectInformation")]
+    [EndpointSummary("Get Character Select Information")]
+    [EndpointDescription("Get the character select information for the current player. Returns a serialized CharacterSelectInformation object")]
+    [ProducesResponseType<CharacterSelectInformation>(StatusCodes.Status200OK)]
+    [ProducesResponseType(StatusCodes.Status503ServiceUnavailable)]
+    public async Task<IResult> GetCharacterSelectInformation(
+        CancellationToken cancellationToken)
+    {
+        var characterSelectInfo = await this.characterSelectService.GetCharacterSelectInformation(cancellationToken);
+        return characterSelectInfo is null ?
+            Results.StatusCode(StatusCodes.Status503ServiceUnavailable) :
+            Results.Ok(characterSelectInfo);
+    }
+
+    [GeneratePost("{identifier}")]
+    [EndpointName("ChangeCharacter")]
+    [EndpointSummary("Change Character by identifier")]
+    [EndpointDescription("Logs out from the current character and tries to log in with the desired character. Identifier can be either uuid or character name")]
+    [ProducesResponseType(StatusCodes.Status200OK)]
+    [ProducesResponseType(StatusCodes.Status500InternalServerError)]
+    [ProducesResponseType(StatusCodes.Status503ServiceUnavailable)]
+    public async Task<IResult> ChangeCharacter(
+        [FromRoute] string identifier,
+        CancellationToken cancellationToken)
+    {
+        var isUuid = Uuid.TryParse(identifier, out _);
+        var result = isUuid
+            ? await this.characterSelectService.ChangeCharacterByUuid(identifier, cancellationToken)
+            : await this.characterSelectService.ChangeCharacterByName(identifier, cancellationToken);
+        return result ?
+            Results.Ok() :
+            Results.StatusCode(StatusCodes.Status500InternalServerError);
+    }
+}

Daybreak.API/Controllers/Rest/InventoryController.cs

@@ -0,0 +1,28 @@
+using Daybreak.API.Services;
+using Daybreak.Shared.Models.Api;
+using Microsoft.AspNetCore.Mvc;
+using Net.Sdk.Web;
+
+namespace Daybreak.API.Controllers.Rest;
+
+[GenerateController("api/v1/rest/inventory")]
+[Tags("Inventory")]
+public sealed class InventoryController(
+    InventoryService inventoryService)
+{
+    private readonly InventoryService inventoryService = inventoryService;
+
+    [GenerateGet]
+    [EndpointName("GetInventory")]
+    [EndpointSummary("Get Inventory information")]
+    [EndpointDescription("Get the inventory of the current player. Returns a serialized InventoryInformation object")]
+    [ProducesResponseType<InventoryInformation>(StatusCodes.Status200OK)]
+    [ProducesResponseType(StatusCodes.Status503ServiceUnavailable)]
+    public async Task<IResult> GetInventory(CancellationToken cancellationToken)
+    {
+        var inventoryInformation = await this.inventoryService.GetInventoryInformation(cancellationToken);
+        return inventoryInformation is null ?
+            Results.StatusCode(StatusCodes.Status503ServiceUnavailable) :
+            Results.Ok(inventoryInformation);
+    }
+}

Daybreak.API/Controllers/Rest/LoginController.cs

@@ -0,0 +1,30 @@
+using System.Core.Extensions;
+using Daybreak.API.Services;
+using Daybreak.Shared.Models.Api;
+using Microsoft.AspNetCore.Mvc;
+using Net.Sdk.Web;
+
+namespace Daybreak.API.Controllers.Rest;
+
+[GenerateController("api/v1/rest/login")]
+[Tags("Login")]
+public sealed class LoginController(
+    LoginService loginService)
+{
+    private readonly LoginService loginService = loginService.ThrowIfNull();
+
+    [GenerateGet]
+    [EndpointName("GetLoginInfo")]
+    [EndpointSummary("Get Login Information")]
+    [EndpointDescription("Get the current login information. Returns a serialized LoginInfo object")]
+    [ProducesResponseType<LoginInfo>(StatusCodes.Status200OK)]
+    [ProducesResponseType(StatusCodes.Status503ServiceUnavailable)]
+    public async Task<IResult> GetLoginInfo(
+        CancellationToken cancellationToken)
+    {
+        var loginInfo = await this.loginService.GetLoginInformation(cancellationToken);
+        return loginInfo is null ?
+            Results.StatusCode(StatusCodes.Status503ServiceUnavailable) :
+            Results.Ok(loginInfo);
+    }
+}

Daybreak.API/Controllers/Rest/MainPlayerController.cs

@@ -0,0 +1,114 @@
+using System.Core.Extensions;
+using Daybreak.API.Services;
+using Daybreak.Shared.Models.Api;
+using Microsoft.AspNetCore.Mvc;
+using Net.Sdk.Web;
+
+namespace Daybreak.API.Controllers.Rest;
+
+[GenerateController("api/v1/rest/main-player")]
+[Tags("Main Player")]
+public sealed class MainPlayerController(
+    MainPlayerService mainPlayerService,
+    ILogger<MainPlayerController> logger)
+{
+    private readonly MainPlayerService mainPlayerService = mainPlayerService.ThrowIfNull();
+    private readonly ILogger<MainPlayerController> logger = logger.ThrowIfNull();
+
+    [GenerateGet("state")]
+    [EndpointName("GetMainPlayerState")]
+    [EndpointSummary("Get the current MainPlayerState")]
+    [EndpointDescription("Get the current MainPlayerState. Returns a json serialized MainPlayerState object. You can use the websocket endpoint to subscribe to MainPlayerState updates on each game thread proc")]
+    [ProducesResponseType<MainPlayerState>(StatusCodes.Status200OK)]
+    [ProducesResponseType(StatusCodes.Status503ServiceUnavailable)]
+    public async Task<IResult> GetMainPlayerState(CancellationToken cancellationToken)
+    {
+        var mainPlayerState = await this.mainPlayerService.GetMainPlayerState(cancellationToken);
+        return mainPlayerState is not null ? Results.Ok(mainPlayerState) : Results.StatusCode(StatusCodes.Status503ServiceUnavailable);
+    }
+
+    [GenerateGet("quest-log")]
+    [EndpointName("GetQuestLog")]
+    [EndpointSummary("Get the current Quest Log")]
+    [EndpointDescription("Get the current Quest Log. Returns a json serialized QuestLogInformation object")]
+    [ProducesResponseType<QuestLogInformation>(StatusCodes.Status200OK)]
+    [ProducesResponseType(StatusCodes.Status503ServiceUnavailable)]
+    public async Task<IResult> GetQuestLog(CancellationToken cancellationToken)
+    {
+        var questLog = await this.mainPlayerService.GetQuestLog(cancellationToken);
+        return questLog is not null ? Results.Ok(questLog) : Results.StatusCode(StatusCodes.Status503ServiceUnavailable);
+    }
+
+    [GenerateGet("info")]
+    [EndpointName("GetMainPlayerInformation")]
+    [EndpointSummary("Get the current MainPlayerInformation")]
+    [EndpointDescription("Get the current MainPlayerInformation. Returns a json serialized MainPlayerInformation object")]
+    [ProducesResponseType<MainPlayerInformation>(StatusCodes.Status200OK)]
+    [ProducesResponseType(StatusCodes.Status503ServiceUnavailable)]
+    public async Task<IResult> GetMainPlayerInformation(CancellationToken cancellationToken)
+    {
+        var mainPlayerInformation = await this.mainPlayerService.GetMainPlayerInformation(cancellationToken);
+        return mainPlayerInformation is not null ? Results.Ok(mainPlayerInformation) : Results.StatusCode(StatusCodes.Status503ServiceUnavailable);
+    }
+
+    [GenerateGet("build")]
+    [EndpointName("GetMainPlayerBuild")]
+    [EndpointSummary("Get the current build")]
+    [EndpointDescription("Get the current build. Returns a json serialized BuildEntry object")]
+    [ProducesResponseType<BuildEntry>(StatusCodes.Status200OK)]
+    [ProducesResponseType(StatusCodes.Status503ServiceUnavailable)]
+    public async Task<IResult> GetMainPlayerBuild(CancellationToken cancellationToken)
+    {
+        var build = await this.mainPlayerService.GetCurrentBuild(cancellationToken);
+        return build is not null ? Results.Ok(build) : Results.StatusCode(StatusCodes.Status503ServiceUnavailable);
+    }
+
+    [GeneratePost("build")]
+    [EndpointName("SetMainPlayerBuild")]
+    [EndpointSummary("Set the current build")]
+    [EndpointDescription("Set the current build. Returns 200 is the operation has succeeded")]
+    [ProducesResponseType(StatusCodes.Status200OK)]
+    [ProducesResponseType(StatusCodes.Status400BadRequest)]
+    [ProducesResponseType(StatusCodes.Status503ServiceUnavailable)]
+    public async Task<IResult> SetMainPlayerBuild([FromQuery(Name = "code")] string? code, CancellationToken cancellationToken)
+    {
+        var result = await this.mainPlayerService.SetCurrentBuild(code ?? string.Empty, cancellationToken);
+        return result ? Results.Ok() : Results.StatusCode(StatusCodes.Status503ServiceUnavailable);
+    }
+
+    [GenerateGet("instance-info")]
+    [EndpointName("GetMainPlayerInstanceInfo")]
+    [EndpointSummary("Get the current instance info")]
+    [EndpointDescription("Get the current instance info. Returns a json serialized MainPlayerInstanceInfo object")]
+    [ProducesResponseType<InstanceInfo>(StatusCodes.Status200OK)]
+    [ProducesResponseType(StatusCodes.Status503ServiceUnavailable)]
+    public async Task<IResult> GetMainPlayerInstanceInfo(CancellationToken cancellationToken)
+    {
+        var instanceInfo = await this.mainPlayerService.GetMainPlayerInstance(cancellationToken);
+        return instanceInfo is not null ? Results.Ok(instanceInfo) : Results.StatusCode(StatusCodes.Status503ServiceUnavailable);
+    }
+
+    [GenerateGet("title")]
+    [EndpointName("GetMainPlayerTitleInfo")]
+    [EndpointSummary("Get the current title info")]
+    [EndpointDescription("Get the current title info. Returns a json serialized TitleInfo object")]
+    [ProducesResponseType<TitleInfo>(StatusCodes.Status200OK)]
+    [ProducesResponseType(StatusCodes.Status503ServiceUnavailable)]
+    public async Task<IResult> GetMainPlayerTitleInfo(CancellationToken cancellationToken)
+    {
+        var titleInfo = await this.mainPlayerService.GetTitleInfo(cancellationToken);
+        return titleInfo is not null ? Results.Ok(titleInfo) : Results.StatusCode(StatusCodes.Status503ServiceUnavailable);
+    }
+
+    [GenerateGet("build-context")]
+    [EndpointName("GetMainPlayerBuildContext")]
+    [EndpointSummary("Get the current build context")]
+    [EndpointDescription("Get the current build context. Returns a json serialized MainPlayerBuildContext object")]
+    [ProducesResponseType<BuildEntry>(StatusCodes.Status200OK)]
+    [ProducesResponseType(StatusCodes.Status503ServiceUnavailable)]
+    public async Task<IResult> GetMainPlayerBuildContext(CancellationToken cancellationToken)
+    {
+        var context = await this.mainPlayerService.GetMainPlayerBuildContext(cancellationToken);
+        return context is not null ? Results.Ok(context) : Results.StatusCode(StatusCodes.Status503ServiceUnavailable);
+    }
+}

Daybreak.API/Controllers/Rest/PartyController.cs

@@ -0,0 +1,38 @@
+using Daybreak.API.Services;
+using Daybreak.Shared.Models.Api;
+using Microsoft.AspNetCore.Mvc;
+using Net.Sdk.Web;
+
+namespace Daybreak.API.Controllers.Rest;
+
+[GenerateController("api/v1/rest/party")]
+[Tags("Party")]
+public sealed class PartyController(PartyService partyService)
+{
+    private readonly PartyService partyService = partyService;
+
+    [GenerateGet("loadout")]
+    [EndpointName("GetPartyLoadout")]
+    [EndpointSummary("Get the current party loadout")]
+    [EndpointDescription("Get the current party loadout. Returns a json serialized PartyLoadout object")]
+    [ProducesResponseType<PartyLoadout>(StatusCodes.Status200OK)]
+    [ProducesResponseType(StatusCodes.Status503ServiceUnavailable)]
+    public async Task<IResult> GetPartyLoadout(
+        CancellationToken cancellationToken)
+    {
+        var partyLoadout = await this.partyService.GetPartyLoadout(cancellationToken);
+        return partyLoadout is not null ? Results.Ok(partyLoadout) : Results.StatusCode(StatusCodes.Status503ServiceUnavailable);
+    }
+
+    [GeneratePost("loadout")]
+    [EndpointName("SetPartyLoadout")]
+    [EndpointSummary("Set the current party loadout")]
+    [EndpointDescription("Set the current party loadout")]
+    [ProducesResponseType(StatusCodes.Status200OK)]
+    [ProducesResponseType(StatusCodes.Status503ServiceUnavailable)]
+    public async Task<IResult> SetPartyLoadout([FromBody] PartyLoadout partyLoadout, CancellationToken cancellationToken)
+    {
+        var result = await this.partyService.SetPartyLoadout(partyLoadout, cancellationToken);
+        return result ? Results.Ok() : Results.StatusCode(StatusCodes.Status503ServiceUnavailable);
+    }
+}

Daybreak.API/Daybreak.API.csproj

@@ -0,0 +1,98 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>$(TargetFrameworkVersionWindows)</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <OutputType>Library</OutputType>
+    <RuntimeIdentifier Condition="'$(RuntimeIdentifier)' == ''">win-x86</RuntimeIdentifier>
+    <StripSymbols>true</StripSymbols>
+    <InteropExports>true</InteropExports>
+    <EmitCompilerGeneratedFiles>true</EmitCompilerGeneratedFiles>
+    <EnableRequestDelegateGenerator>true</EnableRequestDelegateGenerator>
+    
+    <PublishAot>true</PublishAot>
+    <SelfContained>true</SelfContained>
+
+    <AspNetCoreHostingModel>OutOfProcess</AspNetCoreHostingModel>
+    <UseAppHost>false</UseAppHost>
+    <EnableIISSupport>false</EnableIISSupport>
+    <InvariantGlobalization>true</InvariantGlobalization>
+    <AllowMissingPrunePackageData>true</AllowMissingPrunePackageData>
+    <Platforms>x86</Platforms>
+    
+    <!-- Prevent static web asset conflicts -->
+    <StaticWebAssetProjectMode>Default</StaticWebAssetProjectMode>
+    <GenerateStaticWebAssetsManifest>false</GenerateStaticWebAssetsManifest>
+    <ResolveStaticWebAssetsInputsDependsOn>RemoveDuplicateStaticWebAssets;$(ResolveStaticWebAssetsInputsDependsOn)</ResolveStaticWebAssetsInputsDependsOn>
+  </PropertyGroup>
+
+  <PropertyGroup Condition="'$(Configuration)' == 'Release'">
+    <DebugType>none</DebugType>
+    <DebugSymbols>false</DebugSymbols>
+  </PropertyGroup>
+
+  <!-- Remove duplicate static web assets coming from referenced projects -->
+  <Target Name="RemoveDuplicateStaticWebAssets" BeforeTargets="ResolveStaticWebAssetsInputs;GenerateStaticWebAssetsManifest">
+    <ItemGroup>
+      <!-- Remove all blazor webview static assets since this is a Web API project, not a Blazor Hybrid app -->
+      <StaticWebAsset Remove="@(StaticWebAsset)" 
+                      Condition="$([System.String]::new('%(RelativePath)').Contains('blazor.modules')) Or $([System.String]::new('%(RelativePath)').Contains('blazor.webview'))" />
+    </ItemGroup>
+  </Target>
+
+  <PropertyGroup>
+    <!--Ignore trim warnings. NativeAOT support is still experimental so it should be tested with a Publish build generated from Daybreak build-->
+    <NoWarn>IL2104</NoWarn>
+    <NoWarn>IL3053</NoWarn>
+    <!--MinHook.NET does not contain sources for .NET, only .Net Framework. This has no impact on the functionality of the project-->
+    <NoWarn>NU1701</NoWarn>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Using Include="Daybreak.Generators" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <EmbeddedResource Include="Configuration\appsettings.Debug.json" />
+    <EmbeddedResource Include="Configuration\appsettings.json" />
+    <EmbeddedResource Include="Configuration\appsettings.Release.json" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <None Include="..\Dependencies\GWCA\gwca.dll">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <Link>gwca.dll</Link>
+    </None>
+    <AdditionalFiles Include="..\Dependencies\GWCA\gwca.dll" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <RdXmlFile Include="rd.xml" />
+  </ItemGroup>
+  
+  <ItemGroup>
+    <PackageReference Include="Microsoft.AspNetCore.OpenApi" />
+    <PackageReference Include="MinHook.NET" />
+    <PackageReference Include="Net.Sdk.Web.Extensions" />
+    <PackageReference Include="Net.Sdk.Web.Extensions.SourceGenerators" />
+    <PackageReference Include="PeNet" />
+    <PackageReference Include="Serilog" />
+    <PackageReference Include="Serilog.Extensions.Logging" />
+    <PackageReference Include="Serilog.Settings.Configuration" />
+    <PackageReference Include="Serilog.Sinks.Console" />
+    <PackageReference Include="Serilog.Sinks.File" />
+    <PackageReference Include="Scalar.AspNetCore" />
+    <PackageReference Include="SystemExtensions.NetStandard.Generators" PrivateAssets="all" />
+    <PackageReference Include="ZLinq" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\Daybreak.Shared\Daybreak.Shared.csproj" />
+    <ProjectReference Include="..\Daybreak.Generators\Daybreak.Generators.csproj"
+                      OutputItemType="Analyzer"
+                      ReferenceOutputAssembly="false"
+                      SkipGetTargetFrameworkProperties="true"
+                      UndefineProperties="RuntimeIdentifier;PublishAot;SelfContained;TargetFramework" />
+  </ItemGroup>
+</Project>

Daybreak.API/EntryPoint.cs

@@ -0,0 +1,258 @@
+using System.Diagnostics;
+using System.Diagnostics.CodeAnalysis;
+using System.Extensions.Core;
+using System.Logging;
+using System.Net.NetworkInformation;
+using System.Reflection;
+using System.Runtime.InteropServices;
+using Daybreak.API.Configuration;
+using Daybreak.API.Extensions;
+using Daybreak.API.Health;
+using Daybreak.API.Hosting;
+using Daybreak.API.Interop;
+using Daybreak.API.Logging;
+using Daybreak.API.Serialization;
+using Daybreak.API.Services;
+using Daybreak.API.Swagger;
+using Daybreak.API.WebSockets;
+using Microsoft.Extensions.Diagnostics.HealthChecks;
+using Net.Sdk.Web;
+
+namespace Daybreak.API;
+
+public class EntryPoint
+{
+    private const int StartPort = 5080;
+    private const string GwcaDllName = "gwca.dll";
+    private static readonly TimeSpan InitializationTimeout = TimeSpan.FromSeconds(5);
+    private static readonly CancellationTokenSource CancellationTokenSource = new();
+    private static readonly object GwcaResolverLock = new();
+    private static IntPtr gwcaHandle;
+    private static bool gwcaResolverRegistered;
+
+    [UnmanagedCallersOnly(EntryPoint = "ThreadInit"), STAThread]
+    [RequiresUnreferencedCode("The handler uses a static method that gets referenced, so there's no unreferenced code to worry about")]
+    [RequiresDynamicCode("The handler uses a static method, so there's no dynamic code to worry about")]
+    [SuppressMessage("Trimming", "IL2123:The use of 'RequiresUnreferencedCodeAttribute' on entry points is disallowed since the method will be called from outside the visible app.", Justification = "<Pending>")]
+    [SuppressMessage("AOT", "IL3057:The use of 'RequiresDynamicCodeAttribute' on entry points is disallowed since the method will be called from outside the visible app.", Justification = "<Pending>")]
+    public static int ThreadInit(IntPtr _, int __)
+    {
+        Environment.SetEnvironmentVariable("ASPNETCORE_HOSTINGSTARTUPASSEMBLIES", null, EnvironmentVariableTarget.Process);
+        Environment.SetEnvironmentVariable("ASPNETCORE_PREVENTHOSTINGSTARTUP", "true", EnvironmentVariableTarget.Process);
+#if DEBUG
+        ConsoleExtensions.AllocateAnsiConsole();
+#endif
+        var port = FindAvailablePort(StartPort);
+        var app = CreateApplication(port);
+        var runTask = Task.Run(() => StartServer(app), CancellationTokenSource.Token);
+        var scopedLogger = app.Services.GetRequiredService<ILogger<EntryPoint>>().CreateScopedLogger();
+        var healthCheck = app.Services.GetRequiredService<HealthCheckService>();
+        var sw = Stopwatch.StartNew();
+        var healthy = false;
+        while (sw.Elapsed < InitializationTimeout)
+        {
+            var status = Task.Run(() => healthCheck.CheckHealthAsync()).Result;
+            scopedLogger.LogWarning("HealthCheck status: {status} in {duration}. Report: {report}", status.Status, status.TotalDuration, string.Join("\n", status.Entries.Select(e => $"{e.Key}: {e.Value.Status}")));
+            if (status.Status is HealthStatus.Healthy)
+            {
+                healthy = true;
+                break;
+            }
+            else
+            {
+                Thread.Sleep(100);
+            }
+        }
+
+        if (healthy)
+        {
+            scopedLogger.LogInformation("Daybreak API is healthy on port {port}. Initialization succeeded in {duration}", port, sw.Elapsed);
+            return port;
+        }
+        else
+        {
+            scopedLogger.LogError("Daybreak API failed to initialize in {duration}", sw.Elapsed);
+            CancellationTokenSource.Cancel();
+            return -1;
+        }
+    }
+
+    [RequiresUnreferencedCode("The handler uses a static method that gets referenced, so there's no unreferenced code to worry about")]
+    [RequiresDynamicCode("The handler uses a static method, so there's no dynamic code to worry about")]
+    private static WebApplication CreateApplication(int port)
+    {
+        var builder = WebApplication.CreateBuilder()
+                .WithConfiguration()
+                .WithHosting(port)
+                .WithSwagger()
+                .WithSerializationContext()
+                .WithLogging()
+                .WithDaybreakServices()
+                .WithWebSocketRoutes()
+                .WithRoutes()
+                .WithHealthChecks();
+
+        // Add CORS policy - allow localhost and trusted community sites
+        builder.Services.AddCors(options =>
+        {
+            options.AddDefaultPolicy(policy =>
+            {
+                policy.SetIsOriginAllowed(origin =>
+                    {
+                        if (Uri.TryCreate(origin, UriKind.Absolute, out var uri))
+                        {
+                            // Always allow localhost
+                            if (uri.Host is "localhost" or "127.0.0.1")
+                            {
+                                return true;
+                            }
+
+                            // Allow known Guild Wars community sites
+                            return uri.Host.EndsWith("guildwars.app", StringComparison.OrdinalIgnoreCase)
+                                || uri.Host.EndsWith("gwmarket.net", StringComparison.OrdinalIgnoreCase);
+                        }
+
+                        return false;
+                    })
+                    .AllowAnyHeader()
+                    .AllowAnyMethod()
+                    .AllowCredentials();
+            });
+        });
+
+        var app = builder.Build();
+
+        app.UseCors();
+        app.UseWebSockets(new WebSocketOptions { KeepAliveInterval = TimeSpan.FromSeconds(30) });
+
+        return app
+            .UseHealthChecks()
+            .UseLogging()
+            .UseRoutes()
+            .UseWebSocketRoutes()
+            .UseSwaggerWithUI();
+
+    }
+
+    private static async Task StartServer(WebApplication app)
+    {
+        var scopedLogger = app.Services.GetRequiredService<ILogger<EntryPoint>>().CreateScopedLogger();
+        try
+        {
+            scopedLogger.LogDebug("Initializing GWCA");
+            PreloadNativeDependencies(scopedLogger);
+            var result = GWCA.GW.Initialize();
+            scopedLogger.LogDebug($"GWCA.GW.Initialize() returned: {result}");
+            await app.RunAsync();
+        }
+        catch (Exception ex)
+        {
+            scopedLogger.LogCritical(ex, $"Encountered fatal error while starting API server {ex}");
+            throw;
+        }
+    }
+
+    private static int FindAvailablePort(int startPort)
+    {
+        var port = startPort;
+        while (!IsPortAvailable(port))
+        {
+            port++;
+            if (port > 65535 || port < 0)
+            {
+                return -1;
+            }
+        }
+
+        return port;
+    }
+
+    private static bool IsPortAvailable(int port)
+    {
+        var ipProperties = IPGlobalProperties.GetIPGlobalProperties();
+        var tcpListeners = ipProperties.GetActiveTcpListeners();
+        if (tcpListeners.Any(endpoint => endpoint.Port == port))
+        {
+            return false;
+        }
+
+        var tcpConnections = ipProperties.GetActiveTcpConnections();
+        if (tcpConnections.Any(conn => conn.LocalEndPoint.Port == port))
+        {
+            return false;
+        }
+
+        return true;
+    }
+
+    private static void PreloadNativeDependencies(ScopedLogger<EntryPoint> logger)
+    {
+        // First, check if gwca.dll is already loaded in the process (e.g. by GWToolbox).
+        // If so, reuse it via a ref-count bump on the existing path rather than loading
+        // a second copy from the Daybreak.API directory. Loading a second instance of
+        // gwca.dll would result in duplicate native modules in the process, which can
+        // lead to inconsistent state across mods that depend on it.
+        string? daybreakApiDir = default;
+        foreach (ProcessModule module in Process.GetCurrentProcess().Modules)
+        {
+            if (module.ModuleName?.Equals("gwca.dll", StringComparison.OrdinalIgnoreCase) is true)
+            {
+                var handle = NativeLibrary.Load(module.FileName);
+                RegisterGwcaResolver(handle, module.FileName, logger);
+                logger.LogDebug($"Reused already-loaded gwca.dll from {module.FileName}");
+                return;
+            }
+
+            if (daybreakApiDir is null &&
+                module.ModuleName?.Contains("Daybreak.API", StringComparison.OrdinalIgnoreCase) is true)
+            {
+                daybreakApiDir = Path.GetDirectoryName(module.FileName);
+            }
+        }
+
+        if (daybreakApiDir is null)
+        {
+            logger.LogError("Could not locate Daybreak.API module directory to preload gwca.dll");
+            return;
+        }
+
+        var gwcaPath = Path.Combine(daybreakApiDir, "gwca.dll");
+        if (File.Exists(gwcaPath))
+        {
+            var handle = NativeLibrary.Load(gwcaPath);
+            RegisterGwcaResolver(handle, gwcaPath, logger);
+            logger.LogDebug($"Preloaded gwca.dll from {gwcaPath}");
+        }
+        else
+        {
+            logger.LogError($"gwca.dll not found at {gwcaPath}");
+        }
+    }
+
+    private static void RegisterGwcaResolver(IntPtr handle, string path, ScopedLogger<EntryPoint> logger)
+    {
+        lock (GwcaResolverLock)
+        {
+            gwcaHandle = handle;
+            if (gwcaResolverRegistered)
+            {
+                logger.LogDebug($"Updated gwca.dll resolver handle for {path}");
+                return;
+            }
+
+            NativeLibrary.SetDllImportResolver(typeof(GWCA).Assembly, ResolveNativeLibrary);
+            gwcaResolverRegistered = true;
+            logger.LogDebug($"Registered gwca.dll import resolver for {path}");
+        }
+    }
+
+    private static IntPtr ResolveNativeLibrary(string libraryName, Assembly assembly, DllImportSearchPath? searchPath)
+    {
+        if (string.Equals(libraryName, GwcaDllName, StringComparison.OrdinalIgnoreCase))
+        {
+            return gwcaHandle;
+        }
+
+        return IntPtr.Zero;
+    }
+}

Daybreak.API/Extensions/AttributeContextExtensions.cs

@@ -0,0 +1,18 @@
+using Daybreak.API.Interop.GuildWars;
+using Daybreak.Shared.Models.Api;
+
+namespace Daybreak.API.Extensions;
+
+public static class AttributeContextExtensions
+{
+    public static IEnumerable<AttributeEntry> GetAttributeEntryList(this AttributeStructArray54 attributes)
+    {
+        foreach (var attribute in attributes)
+        {            
+            if (attribute.LevelBase > 0 && attribute.Level >= attribute.LevelBase)
+            {
+                yield return new AttributeEntry((uint)attribute.Id, attribute.LevelBase, attribute.Level);
+            }
+        }
+    }
+}

Daybreak.API/Extensions/CharacterInformationExtensions.cs

@@ -0,0 +1,36 @@
+using Daybreak.API.Interop.GuildWars;
+
+namespace Daybreak.API.Extensions;
+
+public static class CharacterInformationExtensions
+{
+    public unsafe static Profession GetPrimaryProfession(this CharacterInformation characterInformation)
+    {
+        return (Profession)((characterInformation.Props[2] >> 20) & 0xF);
+    }
+
+    public unsafe static Profession GetSecondaryProfession(this CharacterInformation characterInformation)
+    {
+        return (Profession)((characterInformation.Props[7] >> 10) & 0xF);
+    }
+
+    public unsafe static uint GetLevel(this CharacterInformation characterInformation)
+    {
+        return (characterInformation.Props[7] >> 4) & 0x3F;
+    }
+
+    public unsafe static Campaign GetCampaign(this CharacterInformation characterInformation)
+    {
+        return (Campaign)(characterInformation.Props[7] & 0xF);
+    }
+
+    public unsafe static MapID GetMapId(this CharacterInformation characterInformation)
+    {
+        return (MapID)((characterInformation.Props[0] >> 16) & 0xFFFF);
+    }
+
+    public unsafe static bool IsPvP(this CharacterInformation characterInformation)
+    {
+        return ((characterInformation.Props[7] >> 9) & 0x1) == 0x1;
+    }
+}

Daybreak.API/Extensions/ConsoleExtensions.cs

@@ -0,0 +1,19 @@
+namespace Daybreak.API.Extensions;
+
+public static class ConsoleExtensions
+{
+    public static void AllocateAnsiConsole()
+    {
+        NativeMethods.AllocConsole();
+        var handle = NativeMethods.GetStdHandle(NativeMethods.STD_OUTPUT_HANDLE);
+        if (!NativeMethods.GetConsoleMode(handle, out var mode))
+        {
+            Console.WriteLine("Failed to get console mode");
+        }
+
+        if (!NativeMethods.SetConsoleMode(handle, mode | NativeMethods.ENABLE_VIRTUAL_TERMINAL_PROCESSING | NativeMethods.ENABLE_PROCESSED_OUTPUT))
+        {
+            Console.WriteLine("Failed to enable virtual terminal processing");
+        }
+    }
+}

Daybreak.API/Extensions/GameContextExtensions.cs

@@ -0,0 +1,103 @@
+using Daybreak.API.Interop;
+using Daybreak.API.Interop.GuildWars;
+using System.Diagnostics.CodeAnalysis;
+
+namespace Daybreak.API.Extensions;
+
+public static unsafe class GameContextExtensions
+{
+    public static bool TryGetPlayerId(
+        this WrappedPointer<GameContext> gameContext,
+        [NotNullWhen(true)] out uint? playerId)
+    {
+        playerId = 0;
+        if (gameContext.IsNull ||
+            gameContext.Pointer->World is null ||
+            gameContext.Pointer->World->PlayerControlledChar is null)
+        {
+            return false;
+        }
+
+        playerId = gameContext.Pointer->World->PlayerControlledChar->AgentId;
+        return true;
+    }
+
+    public static bool TryGetBuildContext(
+        this WrappedPointer<GameContext> gameContext,
+        [NotNullWhen(true)] out GuildWarsArray<SkillbarData>? skillbars,
+        [NotNullWhen(true)] out GuildWarsArray<PartyAttribute>? attributes,
+        [NotNullWhen(true)] out GuildWarsArray<ProfessionState>? professions,
+        [NotNullWhen(true)] out GuildWarsArray<uint>? unlockedSkills)
+    {
+        skillbars = default;
+        attributes = default;
+        professions = default;
+        unlockedSkills = default;
+        if (gameContext.IsNull ||
+            gameContext.Pointer->World is null)
+        {
+            return false;
+        }
+
+        skillbars = gameContext.Pointer->World->Skillbar.Value;
+        attributes = gameContext.Pointer->World->Attributes.Value;
+        professions = gameContext.Pointer->World->PartyProfessionStates;
+        unlockedSkills = gameContext.Pointer->World->UnlockedCharacterSkills;
+        return true;
+    }
+
+    public static bool TryGetPlayerParty(
+        this WrappedPointer<GameContext> gameContext,
+        [NotNullWhen(true)] out uint? partyId,
+        [NotNullWhen(true)] out GuildWarsArray<PlayerPartyMember>? players,
+        [NotNullWhen(true)] out GuildWarsArray<HeroPartyMember>? heroes,
+        [NotNullWhen(true)] out GuildWarsArray<HenchmanPartyMember>? henchmen)
+    {
+        partyId = default;
+        players = default;
+        heroes = default;
+        henchmen = default;
+        if (gameContext.IsNull ||
+            gameContext.Pointer->Party is 0)
+        {
+            return false;
+        }
+
+        var partyInfo = GWCA.GW.PartyMgr.GetPartyInfo(0);
+        partyId = partyInfo->PartyId;
+        players = partyInfo->Players;
+        heroes = partyInfo->Heroes;
+        henchmen = partyInfo->Henchmen;
+        return true;
+    }
+
+    public static bool TryGetHeroFlags(
+        this WrappedPointer<GameContext> gameContext,
+        [NotNullWhen(true)]out GuildWarsArray<HeroFlag>? heroFlags)
+    {
+        heroFlags = default;
+        if (gameContext.IsNull ||
+            gameContext.Pointer->World is null)
+        {
+            return false;
+        }
+
+        heroFlags = gameContext.Pointer->World->HeroFlags.Value;
+        return true;
+    }
+
+    public static bool TryGetAccountContext(
+        this WrappedPointer<GameContext> gameContext,
+        out WrappedPointer<AccountContext> accountContext)
+    {
+        accountContext = default;
+        if (gameContext.IsNull ||
+            gameContext.Pointer->Account is null)
+        {
+            return false;
+        }
+
+        accountContext = gameContext.Pointer->Account;
+        return true;
+    }
+}

Daybreak.API/Extensions/TitleExtensions.cs

@@ -0,0 +1,16 @@
+using Daybreak.API.Interop.GuildWars;
+
+namespace Daybreak.API.Extensions;
+
+public static class TitleExtensions
+{
+    public static bool IsPercentageBased(this Title title)
+    {
+        return (title.Props & 1) != 0;
+    }
+
+    public static bool HasTiers(this Title title)
+    {
+        return (title.Props & 3) == 2;
+    }
+}

Daybreak.API/Health/WebApplicationBuilderExtensions.cs

@@ -0,0 +1,10 @@
+namespace Daybreak.API.Health;
+
+public static class WebApplicationBuilderExtensions
+{
+    public static WebApplicationBuilder WithHealthChecks(this WebApplicationBuilder builder)
+    {
+        builder.Services.AddHealthChecks();
+        return builder;
+    }
+}

Daybreak.API/Health/WebApplicationExtensions.cs

@@ -0,0 +1,48 @@
+using Daybreak.API.Models;
+using Microsoft.Extensions.Diagnostics.HealthChecks;
+using System.Diagnostics.CodeAnalysis;
+using System.Text.Json;
+using ZLinq;
+
+namespace Daybreak.API.Health;
+
+public static class WebApplicationExtensions
+{
+    [RequiresUnreferencedCode("The handler uses a static method that gets referenced, so there's no unreferenced code to worry about")]
+    [RequiresDynamicCode("The handler uses a static method, so there's no dynamic code to worry about")]
+    public static WebApplication UseHealthChecks(this WebApplication app)
+    {
+        app.MapGet("/api/v1/rest/health", static async (HealthCheckService healthCheckService, CancellationToken cancellationToken) =>
+        {
+            var report = await healthCheckService.CheckHealthAsync(cancellationToken);
+
+            var response = new HealthCheckResponse
+            {
+                ProcessId = Environment.ProcessId,
+                Status = report.Status,
+                TotalDuration = report.TotalDuration,
+                Entries = report.Entries.ToDictionary(
+                    e => e.Key,
+                    e => new HealthCheckEntryResponse
+                    {
+                        Status = e.Value.Status,
+                        Description = e.Value.Description ?? string.Empty,
+                        Tags = [.. e.Value.Tags],
+                        Data = e.Value.Data
+                            .Where(kvp => kvp.Value is JsonElement je)
+                            .ToDictionary(kvp => kvp.Key,
+                                kvp => (JsonElement)kvp.Value)
+                    })
+            };
+
+            return Results.Json(response);
+        })
+        .WithName("Health")
+        .WithSummary("Service health")
+        .WithDescription($"Current health status of the service. Returns a serialized object of type {nameof(HealthCheckResponse)}")
+        .WithTags("Service")
+        .Produces<HealthCheckResponse>(StatusCodes.Status200OK)
+        .WithOpenApi();
+        return app;
+    }
+}

Daybreak.API/Hosting/WebApplicationBuilderExtensions.cs

@@ -0,0 +1,11 @@
+namespace Daybreak.API.Hosting;
+
+public static class WebApplicationBuilderExtensions
+{
+    public static WebApplicationBuilder WithHosting(this WebApplicationBuilder builder, int port)
+    {
+        builder.WebHost.ConfigureKestrel(o => o.ListenAnyIP(port));
+
+        return builder;
+    }
+}

Daybreak.API/Interop/FixedArrays.cs

@@ -0,0 +1,23 @@
+#pragma warning disable CS0436 // Type conflicts with imported type
+using System.Extensions;
+
+[assembly: GenerateFixedArray<uint>(Size = 4)]
+[assembly: GenerateFixedArray<char>(Size = 0x14)]
+[assembly: GenerateFixedArray<char>(Size = 0x40)]
+[assembly: GenerateFixedArray<byte>(Size = 0x18)]
+[assembly: GenerateFixedArray<char>(Size = 256)]
+[assembly: GenerateFixedArray<char>(Size = 32)]
+[assembly: GenerateFixedArray<char>(Size = 5)]
+[assembly: GenerateFixedArray<char>(Size = 8)]
+[assembly: GenerateFixedArray<byte>(Size = 56)]
+[assembly: GenerateFixedArray<uint>(Size = 17)]
+[assembly: GenerateFixedArray<uint>(Size = 12)]
+[assembly: GenerateFixedArray<uint>(Size = 13)]
+[assembly: GenerateFixedArray<uint>(Size = 8)]
+#pragma warning restore CS0436 // Type conflicts with imported type
+
+namespace Daybreak.API.Interop;
+
+public static class FixedArrays
+{
+}

Daybreak.API/Interop/Frame.cs

@@ -0,0 +1,34 @@
+using System.Runtime.InteropServices;
+
+namespace Daybreak.API.Interop;
+
+[StructLayout(LayoutKind.Explicit, Pack = 1, Size = 0x1AC)]
+[GWCAEquivalent("Frame")]
+public readonly struct Frame
+{
+    [FieldOffset(0x0008)]
+    public readonly uint FrameLayout;
+
+    [FieldOffset(0x0018)]
+    public readonly uint VisibilityFlags;
+
+    [FieldOffset(0x0020)]
+    public readonly uint Type;
+
+    [FieldOffset(0x0024)]
+    public readonly uint TemplateType;
+
+    [FieldOffset(0x00b8)]
+    public readonly uint ChildOffsetId;
+
+    [FieldOffset(0x00bc)]
+    public readonly uint FrameId;
+
+    [FieldOffset(0x018C)]
+    public readonly uint FrameState;
+
+    public bool IsCreated => (this.FrameState & 0x4) != 0;
+    public bool IsHidden => (this.FrameState & 0x200) != 0;
+    public bool IsVisible => !this.IsHidden;
+    public bool IsDIsabled => (this.FrameState & 0x10) != 0;
+}

Daybreak.API/Interop/GWHwnd.cs

@@ -0,0 +1,10 @@
+using System.Runtime.InteropServices;
+
+namespace Daybreak.API.Interop;
+
+[StructLayout(LayoutKind.Sequential, Pack = 1)]
+[GWCAEquivalent("HWND__")]
+public readonly struct GWHwnd
+{
+    public readonly nint Handle;
+}

Daybreak.API/Interop/GuildWars/GuildWarsArray.cs

@@ -0,0 +1,90 @@
+using System.Collections;
+using System.Runtime.InteropServices;
+
+namespace Daybreak.API.Interop.GuildWars;
+
+[StructLayout(LayoutKind.Sequential, Pack = 1)]
+[GWCAEquivalent("Array")]
+public readonly unsafe struct GuildWarsArray<T> : IEnumerable<T>
+    where T : unmanaged
+{
+    public readonly T* Buffer;
+    public readonly uint Capacity;
+    public readonly uint Size;
+    public readonly uint Param;
+
+    /// <summary>
+    /// Upper bound on a believable element count. Guild Wars' largest arrays hold at most a
+    /// few thousand entries, so anything beyond this is uninitialised or misresolved memory
+    /// rather than a real array.
+    /// </summary>
+    private const uint MaxPlausibleCapacity = 0x10000;
+
+    /// <summary>
+    /// Mirrors <c>GW::BaseArray::valid()</c> - the buffer must be null or aligned and the size
+    /// must fit within the capacity - plus a bound on the capacity itself. Guild Wars leaves
+    /// these fields transiently inconsistent while it (re)allocates an array, and a
+    /// misresolved GWCA scan can point this struct at arbitrary bytes that still satisfy
+    /// <c>size &lt;= capacity</c>.
+    /// </summary>
+    public bool IsValid =>
+        (this.Buffer is null || ((nuint)this.Buffer & 0x3) == 0) &&
+        this.Size <= this.Capacity &&
+        this.Capacity <= MaxPlausibleCapacity;
+
+    /// <summary>
+    /// Number of elements that can safely be read. Zero whenever the array is not backed by
+    /// a buffer, matching <c>GW::BaseArray::get()</c>, which returns null instead of
+    /// dereferencing. Reading past this is an access violation, and because NativeAOT cannot
+    /// throw <c>AccessViolationException</c> it fail-fasts and takes Guild Wars down with it.
+    /// </summary>
+    public uint Count => this.Buffer is not null && this.IsValid ? this.Size : 0;
+
+    public T this[int index]
+    {
+        get
+        {
+            ArgumentOutOfRangeException.ThrowIfNegative(index);
+            ArgumentOutOfRangeException.ThrowIfGreaterThanOrEqual((uint)index, this.Count);
+            return this.Buffer[index];
+        }
+    }
+
+    public Enumerator GetEnumerator() => new(this.Buffer, this.Count);
+
+    IEnumerator<T> IEnumerable<T>.GetEnumerator() => this.GetEnumerator();
+
+    IEnumerator IEnumerable.GetEnumerator() => this.GetEnumerator();
+
+    public unsafe struct Enumerator : IEnumerator, IEnumerator<T>
+    {
+        private readonly T* buffer;
+        private readonly uint size;
+        private int index;
+
+        internal Enumerator(T* buffer, uint size)
+        {
+            this.buffer = buffer;
+            this.size = size;
+            this.index = -1;
+        }
+
+        public bool MoveNext()
+        {
+            int next = this.index + 1;
+            if (next >= this.size)
+            {
+                return false;
+            }
+
+            this.index = next;
+            return true;
+        }
+
+        public T Current => this.buffer[this.index];
+        object IEnumerator.Current => this.Current;
+
+        public void Reset() => this.index = -1;
+        public readonly void Dispose() { }
+    }
+}

Daybreak.API/Interop/GuildWars/Uuid.cs

@@ -0,0 +1,108 @@
+using System.Globalization;
+
+namespace Daybreak.API.Interop.GuildWars;
+
+public readonly struct Uuid(
+    uint timeLow,
+    ushort timeMid,
+    ushort timeHighAndVersion,
+    byte clockSqHi,
+    byte clockSqLow,
+    byte node0,
+    byte node1,
+    byte node2,
+    byte node3,
+    byte node4,
+    byte node5) : IEquatable<Uuid>
+{
+    public const uint NodeLength = 6;
+
+    public readonly uint TimeLow = timeLow;
+    public readonly ushort TimeMid = timeMid;
+    public readonly ushort TimeHighAndVersion = timeHighAndVersion;
+    public readonly byte ClockSqHiAndRes = clockSqHi;
+    public readonly byte ClockSqLow = clockSqLow;
+    public readonly byte Node0 = node0;
+    public readonly byte Node1 = node1;
+    public readonly byte Node2 = node2;
+    public readonly byte Node3 = node3;
+    public readonly byte Node4 = node4;
+    public readonly byte Node5 = node5;
+
+    public bool Equals(Uuid other)
+    {
+        return this.TimeLow == other.TimeLow &&
+            this.TimeMid == other.TimeMid &&
+            this.TimeHighAndVersion == other.TimeHighAndVersion &&
+            this.ClockSqHiAndRes == other.ClockSqHiAndRes &&
+            this.ClockSqLow == other.ClockSqLow &&
+            this.Node0 == other.Node0 &&
+            this.Node1 == other.Node1 &&
+            this.Node2 == other.Node2 &&
+            this.Node3 == other.Node3 &&
+            this.Node4 == other.Node4 &&
+            this.Node5 == other.Node5;
+    }
+
+    public override bool Equals(object? obj)
+    {
+        return obj is Uuid uuid && this.Equals(uuid);
+    }
+
+    public static bool operator ==(Uuid left, Uuid right)
+    {
+        return left.Equals(right);
+    }
+
+    public static bool operator !=(Uuid left, Uuid right)
+    {
+        return !(left == right);
+    }
+
+    public static bool TryParse(string uuidString, out Uuid uuid)
+    {
+        if (uuidString.Length != 36)
+        {
+            uuid = default;
+            return false;
+        }
+
+        var parts = uuidString.Split('-');
+        if (parts.Length != 5)
+        {
+            uuid = default;
+            return false;
+        }
+
+        if (!uint.TryParse(parts[0], NumberStyles.HexNumber, CultureInfo.InvariantCulture, out var timeLow) ||
+            !ushort.TryParse(parts[1], NumberStyles.HexNumber, CultureInfo.InvariantCulture, out var timeMid) ||
+            !ushort.TryParse(parts[2], NumberStyles.HexNumber, CultureInfo.InvariantCulture, out var timeHighAndVersion) ||
+            !byte.TryParse(parts[3].AsSpan(0, 2), NumberStyles.HexNumber, CultureInfo.InvariantCulture, out var clockSqHi) ||
+            !byte.TryParse(parts[3].AsSpan(2, 2), NumberStyles.HexNumber, CultureInfo.InvariantCulture, out var clockSqLow) ||
+            !byte.TryParse(parts[4].AsSpan(0, 2), NumberStyles.HexNumber, CultureInfo.InvariantCulture, out var node0) ||
+            !byte.TryParse(parts[4].AsSpan(2, 2), NumberStyles.HexNumber, CultureInfo.InvariantCulture, out var node1) ||
+            !byte.TryParse(parts[4].AsSpan(4, 2), NumberStyles.HexNumber, CultureInfo.InvariantCulture, out var node2) ||
+            !byte.TryParse(parts[4].AsSpan(6, 2), NumberStyles.HexNumber, CultureInfo.InvariantCulture, out var node3) ||
+            !byte.TryParse(parts[4].AsSpan(8, 2), NumberStyles.HexNumber, CultureInfo.InvariantCulture, out var node4) ||
+            !byte.TryParse(parts[4].AsSpan(10, 2), NumberStyles.HexNumber, CultureInfo.InvariantCulture, out var node5))
+        {
+            uuid = default;
+            return false;
+        }
+
+        uuid = new Uuid(timeLow, timeMid, timeHighAndVersion, clockSqHi, clockSqLow, node0, node1, node2, node3, node4, node5);
+        return true;
+    }
+
+    public override int GetHashCode()
+    {
+        return HashCode.Combine<uint, ushort, ushort, byte, byte, byte[]>(this.TimeLow, this.TimeMid, this.TimeHighAndVersion, this.ClockSqHiAndRes, this.ClockSqLow, [this.Node0, this.Node1, this.Node2, this.Node3, this.Node4, this.Node5]);
+    }
+
+    public override string ToString()
+    {
+        return $"{this.TimeLow:X8}-{this.TimeMid:X4}-{this.TimeHighAndVersion:X4}-{this.ClockSqHiAndRes:X2}{this.ClockSqLow:X2}-{this.Node0:X2}{this.Node1:X2}{this.Node2:X2}{this.Node3:X2}{this.Node4:X2}{this.Node5:X2}";
+    }
+
+    public readonly static Uuid Zero = new(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+}

Daybreak.API/Interop/GuildWars/WrappedPointer.cs

@@ -0,0 +1,49 @@
+namespace Daybreak.API.Interop.GuildWars;
+
+public readonly unsafe struct WrappedPointer<T>(T* pointer)
+    where T : unmanaged
+{
+    public readonly T* Pointer = pointer;
+
+    public bool IsNull => this.Pointer is null;
+
+    /// <summary>
+    /// True when the pointer is non-null and plausibly dereferenceable.
+    /// </summary>
+    /// <remarks>
+    /// Guild Wars structures are 4-byte aligned on x86, so a misaligned address is never a
+    /// real structure. When a GWCA pattern scan fails to resolve, it can hand back an
+    /// address inside Gw.exe's code section (for example 0x0048CA72); reading through that
+    /// yields nonsense field values and eventually an access violation. NativeAOT cannot
+    /// throw <c>AccessViolationException</c>, so it fail-fasts and terminates Guild Wars.
+    /// </remarks>
+    public bool IsValid => this.Pointer is not null && ((nuint)this.Pointer & 0x3) == 0;
+
+    public static implicit operator WrappedPointer<T>(T* pointer) => new(pointer);
+
+    public static implicit operator T*(WrappedPointer<T> wrappedPointer) => wrappedPointer.Pointer;
+
+    public static bool operator ==(T* left, WrappedPointer<T> right) => left == right.Pointer;
+
+    public static bool operator !=(T* left, WrappedPointer<T> right) => left != right.Pointer;
+
+    public static bool operator ==(WrappedPointer<T> left, T* right) => left.Pointer == right;
+
+    public static bool operator !=(WrappedPointer<T> left, T* right) => left.Pointer != right;
+
+    public static bool operator ==(WrappedPointer<T> left, WrappedPointer<T> right) => left.Pointer == right.Pointer;
+
+    public static bool operator !=(WrappedPointer<T> left, WrappedPointer<T> right) => left.Pointer != right.Pointer;
+
+    public override int GetHashCode() => this.Pointer is null ? 0 : this.Pointer->GetHashCode();
+
+    public override bool Equals(object? obj)
+    {
+        if (obj is WrappedPointer<T> wrappedPointer)
+        {
+            return this.Pointer == wrappedPointer.Pointer;
+        }
+
+        return false;
+    }
+}

Daybreak.API/Interop/HookEntry.cs

@@ -0,0 +1,9 @@
+using System.Runtime.InteropServices;
+
+namespace Daybreak.API.Interop;
+
+[StructLayout(LayoutKind.Sequential, Pack = 1)]
+[GWCAEquivalent("HookEntry")]
+public readonly struct HookEntry
+{
+}

Daybreak.API/Interop/ManagedFrame.cs

@@ -0,0 +1,19 @@
+using Daybreak.API.Interop.GuildWars;
+
+namespace Daybreak.API.Interop;
+
+public readonly struct ManagedFrame(
+    WrappedPointer<Frame> frame,
+    Action closeFrame) : IDisposable
+{
+    private readonly Action closeFrame = closeFrame;
+
+    public static ManagedFrame Null => new(null, () => { });
+
+    public readonly WrappedPointer<Frame> Frame = frame;
+
+    public void Dispose()
+    {
+        this.closeFrame();
+    }
+}

Daybreak.API/Interop/MemoryPackExtensions.cs

@@ -0,0 +1,31 @@
+using MemoryPack;
+using System.Buffers;
+
+namespace Daybreak.API.Interop;
+
+public static class MemoryPackExtensions
+{
+    /// <summary>Serialize <paramref name="value"/> into <paramref name="destination"/>.</summary>
+    /// <returns>Number of bytes written.</returns>
+    public static int SerializeToSpan<T>(T value, Span<byte> destination)
+    {
+        var dummy = DummyBufferWriter.Instance;
+
+        using var state = MemoryPackWriterOptionalStatePool.Rent(null);
+
+        var writer = new MemoryPackWriter<DummyBufferWriter>(ref dummy, destination, state);
+
+        writer.WriteValue(value);
+        writer.Flush();
+
+        return writer.WrittenCount;
+    }
+
+    private sealed class DummyBufferWriter : IBufferWriter<byte>
+    {
+        public static readonly DummyBufferWriter Instance = new();
+        public void Advance(int count) { /* ignore – we never overflow destination */ }
+        public Memory<byte> GetMemory(int sizeHint = 0) => throw new NotSupportedException();
+        public Span<byte> GetSpan(int sizeHint = 0) => throw new NotSupportedException();
+    }
+}

Daybreak.API/Interop/UnmanagedStruct.cs

@@ -0,0 +1,22 @@
+using System.Runtime.InteropServices;
+
+namespace Daybreak.API.Interop;
+
+public sealed class UnmanagedStruct<T> : IDisposable
+    where T : struct
+{
+    public nint Address { get; private set; }
+
+    public UnmanagedStruct(T value)
+    {
+        this.Address = Marshal.AllocHGlobal(Marshal.SizeOf<T>());
+        Marshal.StructureToPtr(value, this.Address, false);
+    }
+
+    public void Dispose()
+    {
+        Marshal.DestroyStructure<T>(this.Address);
+        Marshal.FreeHGlobal(this.Address);
+        this.Address = 0x0;
+    }
+}

Daybreak.API/Logging/LoggingEnrichmentMiddleware.cs

@@ -0,0 +1,29 @@
+using Microsoft.CorrelationVector;
+using Microsoft.Extensions.Options;
+using Net.Sdk.Web;
+using Net.Sdk.Web.Options;
+using Serilog.Context;
+
+namespace Daybreak.API.Logging;
+
+public sealed class LoggingEnrichmentMiddleware(IOptions<CorrelationVectorOptions> options)
+    : IMiddleware
+{
+    private readonly CorrelationVectorOptions options = options.Value;
+
+    public Task InvokeAsync(HttpContext context, RequestDelegate next)
+    {
+        if (!context.Request.Headers.TryGetValue(this.options.Header, out var value) ||
+            value.FirstOrDefault() is not string cvString ||
+            CorrelationVector.Parse(cvString) is not CorrelationVector cv)
+        {
+            cv = new CorrelationVector();
+        }
+
+        cv = CorrelationVector.Extend(cv.ToString());
+        context.SetCorrelationVector(cv);
+        LogContext.PushProperty("CorrelationVector", cv);
+        HeaderDictionaryExtensions.Append(context.Response.Headers, this.options.Header, context.GetCorrelationVector().ToString());
+        return next(context);
+    }
+}

Daybreak.API/Logging/WebApplicationBuilderExtensions.cs

@@ -0,0 +1,36 @@
+using Serilog.Settings.Configuration;
+using Serilog.Sinks.SystemConsole.Themes;
+using Serilog;
+using Net.Sdk.Web.Options;
+
+namespace Daybreak.API.Logging;
+
+public static class WebApplicationBuilderExtensions
+{
+    public static WebApplicationBuilder WithLogging(this WebApplicationBuilder builder)
+    {
+        builder.Logging.ClearProviders();
+        builder.Logging.AddSerilog(new LoggerConfiguration()
+            .ReadFrom.Configuration(builder.Configuration, new ConfigurationReaderOptions
+            {
+                SectionName = "Logging"
+            })
+            .Enrich.FromLogContext()
+            .WriteTo.Console(
+                outputTemplate: "[{Timestamp:yyyy-MM-dd HH:mm:ss}] {Level:u4}: [{SourceContext}] [{CorrelationVector}] {NewLine}{Message:lj}{NewLine}{Exception}",
+                theme: AnsiConsoleTheme.Sixteen)
+            .WriteTo.File(
+                outputTemplate: "[{Timestamp:yyyy-MM-dd HH:mm:ss}] {Level:u4}: [{SourceContext}] [{CorrelationVector}] {NewLine}{Message:lj}{NewLine}{Exception}",
+                path: "Daybreak.API.log",
+                rollingInterval: RollingInterval.Day,
+                rollOnFileSizeLimit: true,
+                fileSizeLimitBytes: 50 * 1024 * 1024,
+                retainedFileCountLimit: 1,
+                shared: true)
+            .CreateLogger());
+        builder.Services.AddScoped<LoggingEnrichmentMiddleware>();
+        builder.Services.AddOptions<CorrelationVectorOptions>()
+            .Bind(builder.Configuration.GetSection("Correlation"));
+        return builder;
+    }
+}

Daybreak.API/Logging/WebApplicationExtensions.cs

@@ -0,0 +1,10 @@
+namespace Daybreak.API.Logging;
+
+public static class WebApplicationExtensions
+{
+    public static WebApplication UseLogging(this WebApplication app)
+    {
+        app.UseMiddleware<LoggingEnrichmentMiddleware>();
+        return app;
+    }
+}

Daybreak.API/Models/ByteConsumerEntry.cs

@@ -0,0 +1,23 @@
+using System.Core.Extensions;
+
+namespace Daybreak.API.Models;
+
+public sealed class ByteConsumerEntry(
+    Guid id, TimeSpan freq, Action<ReadOnlySpan<byte>> handler)
+{
+    private readonly Action<ReadOnlySpan<byte>> handler = handler.ThrowIfNull();
+
+    private DateTime lastConsume = DateTime.MinValue;
+
+    public Guid Id { get; } = id;
+    public TimeSpan Frequency { get; } = freq;
+
+    public void TryConsume(DateTime currentTime, ReadOnlySpan<byte> value)
+    {
+        if (currentTime - this.lastConsume >= this.Frequency)
+        {
+            this.handler(value);
+            this.lastConsume = currentTime;
+        }
+    }
+}

Daybreak.API/Models/CallbackRegistration.cs

@@ -0,0 +1,14 @@
+using System.Core.Extensions;
+
+namespace Daybreak.API.Models;
+
+public sealed class CallbackRegistration(Guid uid, Action onDispose) : IDisposable
+{
+    private readonly Guid uid = uid;
+    private readonly Action onDispose = onDispose.ThrowIfNull();
+
+    public void Dispose()
+    {
+        this.onDispose();
+    }
+}

Daybreak.API/Models/DecodeStringContext.cs

@@ -0,0 +1,9 @@
+using Daybreak.API.Interop.GuildWars;
+
+namespace Daybreak.API.Models;
+
+public struct DecodeStringContext(WrappedPointer<char> encodedString, TaskCompletionSource<string?> taskCompletionSource)
+{
+    public WrappedPointer<char> EncodedString = encodedString;
+    public TaskCompletionSource<string?> TaskCompletionSource = taskCompletionSource;
+}

Daybreak.API/Models/HealthCheckEntryResponse.cs

@@ -0,0 +1,14 @@
+using Microsoft.Extensions.Diagnostics.HealthChecks;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace Daybreak.API.Models;
+
+public sealed class HealthCheckEntryResponse
+{
+    [JsonConverter(typeof(JsonStringEnumConverter<HealthStatus>))]
+    public required HealthStatus Status { get; set; }
+    public required string Description { get; set; }
+    public required Dictionary<string, JsonElement> Data { get; set; }
+    public required List<string> Tags { get; set; }
+}

Daybreak.API/Models/HealthCheckResponse.cs

@@ -0,0 +1,13 @@
+using Microsoft.Extensions.Diagnostics.HealthChecks;
+using System.Text.Json.Serialization;
+
+namespace Daybreak.API.Models;
+
+public sealed class HealthCheckResponse
+{
+    public required int ProcessId { get; set; }
+    [JsonConverter(typeof(JsonStringEnumConverter<HealthStatus>))]
+    public required HealthStatus Status { get; set; }
+    public required TimeSpan TotalDuration { get; set; }
+    public required Dictionary<string, HealthCheckEntryResponse> Entries { get; set; }
+}

Daybreak.API/Models/IWorkItem.cs

@@ -0,0 +1,9 @@
+namespace Daybreak.API.Models;
+
+public interface IWorkItem
+{
+    CancellationToken CancellationToken { get; }
+    void Execute();
+    void Cancel();
+    void Exception(Exception ex);
+}

Daybreak.API/Models/WorkItem.cs

@@ -0,0 +1,80 @@
+namespace Daybreak.API.Models;
+
+public sealed class WorkItem(
+    Action action,
+    TaskCompletionSource tcs,
+    CancellationToken token) : IWorkItem
+{
+    private readonly Action action = action;
+    private readonly TaskCompletionSource tcs = tcs;
+
+    public CancellationToken CancellationToken { get; } = token;
+
+    public void Execute()
+    {
+        if (this.CancellationToken.IsCancellationRequested)
+        {
+            this.tcs.TrySetCanceled(this.CancellationToken);
+            return;
+        }
+
+        try
+        {
+            this.action();
+            this.tcs.TrySetResult();
+        }
+        catch (Exception ex)
+        {
+            this.tcs.TrySetException(ex);
+        }
+    }
+
+    public void Cancel()
+    {
+        this.tcs.TrySetCanceled(this.CancellationToken);
+    }
+
+    public void Exception(Exception ex)
+    {
+        this.tcs.TrySetException(ex);
+    }
+}
+
+public sealed class WorkItem<T>(
+    Func<T> func,
+    TaskCompletionSource<T> tcs,
+    CancellationToken token) : IWorkItem
+{
+    private readonly Func<T> func = func;
+    private readonly TaskCompletionSource<T> tcs = tcs;
+
+    public CancellationToken CancellationToken { get; } = token;
+
+    public void Execute()
+    {
+        if (this.CancellationToken.IsCancellationRequested)
+        {
+            this.tcs.TrySetCanceled(this.CancellationToken);
+            return;
+        }
+
+        try
+        {
+            this.tcs.TrySetResult(this.func());
+        }
+        catch (Exception ex)
+        {
+            this.tcs.TrySetException(ex);
+        }
+    }
+
+    public void Cancel()
+    {
+        this.tcs.TrySetCanceled(this.CancellationToken);
+    }
+
+    public void Exception(Exception ex)
+    {
+        this.tcs.TrySetException(ex);
+    }
+}

Daybreak.API/NativeMethods.cs

@@ -0,0 +1,68 @@
+using System.Runtime.InteropServices;
+
+namespace Daybreak.API;
+
+internal unsafe static partial class NativeMethods
+{
+    public const int STD_OUTPUT_HANDLE = -11;
+    public const uint ENABLE_VIRTUAL_TERMINAL_PROCESSING = 0x0004;
+    public const uint ENABLE_PROCESSED_OUTPUT = 0x0001;
+
+    public const int WM_KEYDOWN = 0x0100;
+    public const int WM_KEYUP = 0x0101;
+    public const int WM_CHAR = 0x0102;
+    public const int VK_LEFT = 0x25;
+    public const int VK_RIGHT = 0x27;
+
+    public const uint MEM_COMMIT = 0x1000;
+    public const uint MEM_RESERVE = 0x2000;
+    public const uint PAGE_EXECUTE_READWRITE = 0x40;
+
+    [LibraryImport("kernel32.dll", SetLastError = true)]
+    [return: MarshalAs(UnmanagedType.Bool)]
+    public static partial bool AllocConsole();
+
+    [LibraryImport("kernel32.dll", SetLastError = true)]
+    public static partial nint GetConsoleWindow();
+
+    [LibraryImport("kernel32.dll", SetLastError = true)]
+    public static partial nint GetStdHandle(int nStdHandle);
+
+    [LibraryImport("kernel32.dll")]
+    [return: MarshalAs(UnmanagedType.Bool)]
+    public static partial bool GetConsoleMode(nint hConsoleHandle, out uint lpMode);
+
+    [LibraryImport("kernel32.dll")]
+    [return: MarshalAs(UnmanagedType.Bool)]
+    public static partial bool SetConsoleMode(nint hConsoleHandle, uint dwMode);
+
+    [LibraryImport("user32.dll")]
+    public static partial nint SendMessageW(nint hWnd, int Msg, nint wParam, nuint lParam);
+
+    [LibraryImport("kernel32.dll", SetLastError = true)]
+    public static partial nint VirtualAlloc(
+        nint lpAddress, nuint dwSize,
+        uint flAllocationType, uint flProtect);
+
+    [LibraryImport("kernel32.dll", SetLastError = true)]
+    [return: MarshalAs(UnmanagedType.Bool)]
+    public static partial bool VirtualProtect(
+        void* lpAddress, nuint dwSize,
+        uint flNewProtect, out uint lpflOldProtect);
+
+    // Window enumeration
+    public delegate bool EnumWindowsProc(nint hwnd, nint lParam);
+
+    [LibraryImport("user32.dll", SetLastError = true)]
+    [return: MarshalAs(UnmanagedType.Bool)]
+    public static partial bool EnumWindows(EnumWindowsProc lpEnumFunc, nint lParam);
+
+    [LibraryImport("user32.dll", SetLastError = true)]
+    public static partial uint GetWindowThreadProcessId(nint hWnd, out uint lpdwProcessId);
+
+    [LibraryImport("user32.dll", SetLastError = true, StringMarshalling = StringMarshalling.Utf8)]
+    public static partial int GetClassNameA(nint hWnd, byte* lpClassName, int nMaxCount);
+
+    [LibraryImport("kernel32.dll")]
+    public static partial uint GetCurrentProcessId();
+}

Daybreak.API/Properties/AssemblyInfo.cs

@@ -0,0 +1,4 @@
+using System.Runtime.CompilerServices;
+
+// Required for LibraryImport source generator to work with blittable types like Vector2, Vector3
+[assembly: DisableRuntimeMarshalling]

Daybreak.API/Properties/launchSettings.json

@@ -0,0 +1,12 @@
+{
+  "profiles": {
+    "Daybreak.API": {
+      "commandName": "Project",
+      "launchBrowser": true,
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      },
+      "applicationUrl": "https://localhost:51249;http://localhost:51250"
+    }
+  }
+}

Daybreak.API/Serialization/ApiJsonSerializerContext.cs

@@ -0,0 +1,39 @@
+using Daybreak.API.Models;
+using Daybreak.Shared.Models.Api;
+using Daybreak.Shared.Models.Guildwars;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace Daybreak.API.Serialization;
+
+[JsonSerializable(typeof(string))]
+[JsonSerializable(typeof(byte[]))]
+[JsonSerializable(typeof(int))]
+[JsonSerializable(typeof(uint))]
+[JsonSerializable(typeof(nuint))]
+[JsonSerializable(typeof(bool))]
+[JsonSerializable(typeof(Dictionary<string, string>))]
+[JsonSerializable(typeof(List<string>))]
+[JsonSerializable(typeof(JsonElement))]
+[JsonSerializable(typeof(HealthCheckResponse))]
+[JsonSerializable(typeof(HealthCheckEntryResponse))]
+[JsonSerializable(typeof(MainPlayerState))]
+[JsonSerializable(typeof(QuestLogInformation))]
+[JsonSerializable(typeof(QuestInformation))]
+[JsonSerializable(typeof(MainPlayerInformation))]
+[JsonSerializable(typeof(CharacterSelectInformation))]
+[JsonSerializable(typeof(CharacterSelectEntry))]
+[JsonSerializable(typeof(BuildEntry))]
+[JsonSerializable(typeof(List<BuildEntry>))]
+[JsonSerializable(typeof(PartyLoadoutEntry))]
+[JsonSerializable(typeof(List<PartyLoadout>))]
+[JsonSerializable(typeof(InstanceInfo))]
+[JsonSerializable(typeof(TitleInfo))]
+[JsonSerializable(typeof(LoginInfo))]
+[JsonSerializable(typeof(MainPlayerBuildContext))]
+[JsonSerializable(typeof(InventoryInformation))]
+[JsonSerializable(typeof(ItemProperty))]
+[JsonSourceGenerationOptions(UseStringEnumConverter = true)]
+public partial class ApiJsonSerializerContext : JsonSerializerContext
+{
+}

Daybreak.API/Serialization/WebApplicationBuilderExtensions.cs

@@ -0,0 +1,14 @@
+namespace Daybreak.API.Serialization;
+
+public static class WebApplicationBuilderExtensions
+{
+    public static WebApplicationBuilder WithSerializationContext(this WebApplicationBuilder builder)
+    {
+        builder.Services.ConfigureHttpJsonOptions(options =>
+        {
+            options.SerializerOptions.TypeInfoResolverChain.Insert(0, new ApiJsonSerializerContext());
+        });
+
+        return builder;
+    }
+}

Daybreak.API/Services/CharacterSelectService.cs

@@ -0,0 +1,496 @@
+using Daybreak.API.Extensions;
+using Daybreak.API.Interop;
+using Daybreak.API.Interop.GuildWars;
+using Daybreak.API.Services.Interop;
+using Daybreak.Shared.Models.Api;
+using System.Core.Extensions;
+using System.Extensions;
+using System.Extensions.Core;
+using System.Runtime.InteropServices;
+using ZLinq;
+
+namespace Daybreak.API.Services;
+
+public sealed class CharacterSelectService(
+    InstanceContextService instanceContextService,
+    PlatformContextService platformContextService,
+    UIContextService uiContextService,
+    GameThreadService gameThreadService,
+    GameContextService gameContextService,
+    ILogger<CharacterSelectService> logger)
+{
+    private readonly InstanceContextService instanceContextService = instanceContextService.ThrowIfNull();
+    private readonly PlatformContextService platformContextService = platformContextService.ThrowIfNull();
+    private readonly UIContextService uiContextService = uiContextService.ThrowIfNull();
+    private readonly GameThreadService gameThreadService = gameThreadService.ThrowIfNull();
+    private readonly GameContextService gameContextService = gameContextService.ThrowIfNull();
+    private readonly ILogger<CharacterSelectService> logger = logger.ThrowIfNull();
+
+    public Task<CharacterSelectInformation?> GetCharacterSelectInformation(CancellationToken cancellationToken)
+    {
+        var scopedLogger = this.logger.CreateScopedLogger();
+        return this.gameThreadService.QueueOnGameThread(() =>
+        {
+            unsafe
+            {
+                var gameContext = this.gameContextService.GetGameContext();
+                if (gameContext.IsNull ||
+                    gameContext.Pointer->World is null ||
+                    gameContext.Pointer->Character is null)
+                {
+                    scopedLogger.LogError("Game context is not initialized");
+                    return default;
+                }
+
+                var availableCharsContext = this.gameContextService.GetAvailableChars();
+                if (!availableCharsContext.IsValid ||
+                    !availableCharsContext.Pointer->IsValid)
+                {
+                    scopedLogger.LogError(
+                        "Available characters context is not initialized (array@0x{Array:X8} buffer=0x{Buffer:X8} capacity={Capacity} size={Size})",
+                        (nuint)availableCharsContext.Pointer,
+                        availableCharsContext.IsValid ? (nuint)availableCharsContext.Pointer->Buffer : 0,
+                        availableCharsContext.IsValid ? availableCharsContext.Pointer->Capacity : 0,
+                        availableCharsContext.IsValid ? availableCharsContext.Pointer->Size : 0);
+                    return default;
+                }
+
+                var currentUuid = (*(Uuid*)gameContext.Pointer->Character->PlayerUuid).ToString();
+                var availableChars = new List<CharacterSelectEntry>((int)availableCharsContext.Pointer->Count);
+                foreach (var charContext in *availableCharsContext.Pointer)
+                {
+                    var name = new string(charContext.Name);
+                    availableChars.Add(new CharacterSelectEntry(
+                        (*(Uuid*)charContext.Uuid).ToString(),
+                        name,
+                        (uint)charContext.GetPrimaryProfession(),
+                        (uint)charContext.GetSecondaryProfession(),
+                        (uint)charContext.GetCampaign(),
+                        (uint)charContext.GetMapId(),
+                        (uint)charContext.GetLevel(),
+                        charContext.IsPvP()));
+                }
+
+                // TODO: Reforged sometimes returns Zero UUID even when in-game, need to investigate why
+                if (currentUuid != Uuid.Zero.ToString())
+                {
+                    var currentCharacter = availableChars.FirstOrDefault(c => c.Uuid == currentUuid);
+                    return new CharacterSelectInformation(currentCharacter, availableChars);
+                }
+                else
+                {
+                    var currentCharacter = availableChars.FirstOrDefault();
+                    return new CharacterSelectInformation(currentCharacter, availableChars);
+                }
+            }
+        }, cancellationToken);
+    }
+
+    public async Task<bool> ChangeCharacterByName(string characterName, CancellationToken cancellationToken)
+    {
+        var scopedLogger = this.logger.CreateScopedLogger();
+        if (await this.ValidateState(cancellationToken) is false)
+        {
+            scopedLogger.LogError("Cannot change character while in loading state");
+            return false;
+        }
+
+        await this.TriggerLogOut(cancellationToken);
+
+        var selectResult = await this.WaitForCharSelectAndSelectCharacter(characterName, cancellationToken);
+        if (!selectResult)
+        {
+            scopedLogger.LogError("Failed to select character {name}", characterName);
+            return false;
+        }
+
+        return true;
+    }
+
+    public async Task<bool> ChangeCharacterByUuid(string uuid, CancellationToken cancellationToken)
+    {
+        var scopedLogger = this.logger.CreateScopedLogger();
+        if (await this.ValidateState(cancellationToken) is false)
+        {
+            scopedLogger.LogError("Cannot change character while in loading state");
+            return false;
+        }
+
+        var desiredCharName = await this.GetCharNameByUuid(uuid, cancellationToken);
+        if (desiredCharName is null)
+        {
+            scopedLogger.LogError("Failed to find character with UUID: {uuid}", uuid);
+            return false;
+        }
+
+        await this.TriggerLogOut(cancellationToken);
+
+        var selectResult = await this.WaitForCharSelectAndSelectCharacter(desiredCharName, cancellationToken);
+        if (!selectResult)
+        {
+            scopedLogger.LogError("Failed to select character {name} with uuid {uuid}", desiredCharName, uuid);
+            return false;
+        }
+
+        return true;
+    }
+
+    [StructLayout(LayoutKind.Sequential, Pack = 1)]
+    private unsafe struct CharSelectButtonParam
+    {
+        public char* Name;
+        public uint Play;
+    }
+
+    [StructLayout(LayoutKind.Explicit, Pack = 1)]
+    private readonly unsafe struct CharSelectorContext
+    {
+        [FieldOffset(0x0000)]
+        public readonly uint Vtable;
+
+        [FieldOffset(0x0004)]
+        public readonly uint FrameId;
+
+        [FieldOffset(0x0008)]
+        public readonly GuildWarsArray<WrappedPointer<CharSelectorChar>> Chars;
+    }
+
+    [StructLayout(LayoutKind.Explicit, Pack = 1)]
+    private readonly struct CharSelectorChar
+    {
+        [FieldOffset(0x0020)]
+        public readonly Array20Char Name;
+    }
+
+    private async Task<bool> SelectCharacterToPlay(string characterName, bool play, CancellationToken cancellationToken)
+    {
+        var scopedLogger = this.logger.CreateScopedLogger();
+        return await this.gameThreadService.QueueOnGameThread(() =>
+        {
+            unsafe
+            {
+                if (!this.IsCharSelectReady())
+                {
+                    scopedLogger.LogError("Character select is not ready");
+                    return false;
+                }
+
+                var selectorFrame = this.GetCharSelectorFrame();
+                if (selectorFrame is null)
+                {
+                    scopedLogger.LogError("Character selector frame not found");
+                    return false;
+                }
+
+                var ctx = this.uiContextService.GetFrameContext<CharSelectorContext>(selectorFrame);
+                if (ctx.IsNull ||
+                    (nuint)ctx.Pointer <= 0xFFFF)
+                {
+                    scopedLogger.LogError("Character selector context not found");
+                    return false;
+                }
+
+                var panesFrame = this.uiContextService.GetChildFrame(selectorFrame, 0);
+                if (panesFrame.IsNull)
+                {
+                    scopedLogger.LogError("Character panes frame not found");
+                    return false;
+                }
+
+                // Get current selected index
+                uint selectedIdx = 0;
+                this.uiContextService.SendFrameUIMessage(panesFrame, UIMessage.kFrameMessage_0x4a, null, &selectedIdx);
+
+                // Find target character index
+                uint targetIdx = 0xFFFF;
+                // Count (not Size) so a not-yet-allocated roster yields zero iterations
+                // instead of indexing through a null buffer.
+                var charCount = ctx.Pointer->Chars.Count;
+
+                for (uint i = 0; i < charCount; i++)
+                {
+                    var c = ctx.Pointer->Chars.Buffer[i];
+                    if (c.IsNull)
+                    {
+                        continue;
+                    }
+
+                    var charNameSpan = c.Pointer->Name.AsSpan();
+                    var nullIdx = charNameSpan.IndexOf('\0');
+                    if (nullIdx <= 0)
+                    {
+                        continue;
+                    }
+
+                    var charName = new string(charNameSpan[..nullIdx]);
+                    if (!charName.Equals(characterName, StringComparison.OrdinalIgnoreCase))
+                    {
+                        continue;
+                    }
+
+                    targetIdx = i;
+                    break;
+                }
+
+                if (targetIdx >= charCount)
+                {
+                    scopedLogger.LogError("Character {name} not found in character list", characterName);
+                    return false;
+                }
+
+                var parentFrame = this.uiContextService.GetParentFrame(selectorFrame);
+                if (parentFrame.IsNull)
+                {
+                    scopedLogger.LogError("Parent frame not found");
+                    return false;
+                }
+
+                // Helper function to select a character at a specific index
+                bool SelectChar(uint idx)
+                {
+                    var charToSelect = ctx.Pointer->Chars.Buffer[idx];
+                    if (charToSelect.IsNull)
+                    {
+                        return false;
+                    }
+
+                    fixed (char* namePtr = charToSelect.Pointer->Name.AsSpan())
+                    {
+                        var buttonParam = new CharSelectButtonParam
+                        {
+                            Name = namePtr,
+                            Play = 0
+                        };
+
+                        var action = new kMouseAction
+                        {
+                            FrameId = selectorFrame->FrameId,
+                            ChildOffsetId = selectorFrame->ChildOffsetId,
+                            CurrentState = GWCA.GW.UI.UIPacket.ActionState.MouseClick,
+                            Wparam = (nint)(&buttonParam)
+                        };
+
+                        if (!this.uiContextService.SendFrameUIMessage(parentFrame, UIMessage.kMouseClick2, &action))
+                        {
+                            return false;
+                        }
+
+                        uint newSelectedIdx = 0;
+                        this.uiContextService.SendFrameUIMessage(panesFrame, UIMessage.kFrameMessage_0x4a, null, &newSelectedIdx);
+                        return newSelectedIdx == idx;
+                    }
+                }
+
+                // Navigate to target character by selecting previous/next until we reach it.
+                // Empty roster slots are represented by null entries in the character array, so
+                // step over them instead of bailing out (otherwise navigation gets stuck at the
+                // slot right before a gap and never reaches characters beyond it).
+                while (targetIdx < selectedIdx)
+                {
+                    if (selectedIdx == 0)
+                    {
+                        break;
+                    }
+
+                    var prevIdx = selectedIdx - 1;
+                    while (prevIdx > 0 && ctx.Pointer->Chars.Buffer[prevIdx].IsNull)
+                    {
+                        prevIdx--;
+                    }
+
+                    if (ctx.Pointer->Chars.Buffer[prevIdx].IsNull)
+                    {
+                        break;
+                    }
+
+                    if (!SelectChar(prevIdx))
+                    {
+                        scopedLogger.LogError("Failed to select previous character");
+                        return false;
+                    }
+
+                    selectedIdx = prevIdx;
+                }
+
+                while (targetIdx > selectedIdx)
+                {
+                    if (selectedIdx >= charCount - 1)
+                    {
+                        break;
+                    }
+
+                    var nextIdx = selectedIdx + 1;
+                    while (nextIdx < charCount && ctx.Pointer->Chars.Buffer[nextIdx].IsNull)
+                    {
+                        nextIdx++;
+                    }
+
+                    if (nextIdx >= charCount)
+                    {
+                        break;
+                    }
+
+                    if (!SelectChar(nextIdx))
+                    {
+                        scopedLogger.LogError("Failed to select next character");
+                        return false;
+                    }
+
+                    selectedIdx = nextIdx;
+                }
+
+                var chosen = selectedIdx == targetIdx;
+                if (!chosen)
+                {
+                    scopedLogger.LogError("Failed to select character {name}", characterName);
+                    return false;
+                }
+
+                if (!play)
+                {
+                    return true;
+                }
+
+                var playButton = this.uiContextService.GetFrameByLabel("Play");
+                if (playButton.IsNull)
+                {
+                    scopedLogger.LogError("Play button not found");
+                    return false;
+                }
+
+                return this.uiContextService.ButtonClick(playButton);
+            }
+        }, cancellationToken);
+    }
+
+    private async Task<bool> WaitForCharSelectAndSelectCharacter(string characterName, CancellationToken cancellationToken)
+    {
+        var scopedLogger = this.logger.CreateScopedLogger();
+
+        // Wait for character select to be ready
+        while (!cancellationToken.IsCancellationRequested)
+        {
+            try
+            {
+                if (await this.gameThreadService.QueueOnGameThread(this.IsCharSelectReady, cancellationToken))
+                {
+                    break;
+                }
+
+                await Task.Delay(100, cancellationToken);
+            }
+            catch (Exception e)
+            {
+                scopedLogger.LogError(e, "Error while waiting for character select to be ready");
+                throw;
+            }
+        }
+
+        if (cancellationToken.IsCancellationRequested)
+        {
+            return false;
+        }
+
+        // NOTE: Mirrors GWToolbox's GW::LoginMgr::SelectCharacterToPlay, which navigates the
+        // character carousel purely by stepping prev/next over the selector context's character
+        // array. It deliberately does NOT touch the in-game CharSortOrder preference: the
+        // navigation relies on the selector context order matching the visible carousel order,
+        // and forcing a re-sort here desyncs the two (the click-by-name steps then land on the
+        // wrong index, so navigation only appears to work in one direction).
+        return await this.SelectCharacterToPlay(characterName, play: true, cancellationToken);
+    }
+
+    private async Task<string?> GetCharNameByUuid(string uuid, CancellationToken cancellationToken)
+    {
+        var scopedLogger = this.logger.CreateScopedLogger();
+        return await this.gameThreadService.QueueOnGameThread(() =>
+        {
+            unsafe
+            {
+                var gameContext = this.gameContextService.GetGameContext();
+                if (gameContext.IsNull)
+                {
+                    scopedLogger.LogError("Game context is not initialized");
+                    return default;
+                }
+
+                var availableCharsContext = this.gameContextService.GetAvailableChars();
+                if (!availableCharsContext.IsValid ||
+                    !availableCharsContext.Pointer->IsValid)
+                {
+                    scopedLogger.LogError("Available characters context is not initialized");
+                    return default;
+                }
+
+                foreach (var charContext in *availableCharsContext.Pointer)
+                {
+                    if ((*(Uuid*)charContext.Uuid).ToString() != uuid)
+                    {
+                        continue;
+                    }
+
+                    var name = new string(charContext.Name);
+                    return name;
+                }
+
+                return default;
+            }
+        }, cancellationToken);
+    }
+
+    private async Task TriggerLogOut(CancellationToken cancellationToken)
+    {
+        await this.gameThreadService.QueueOnGameThread(() =>
+        {
+            var logoutMessage = new kLogout { Unknown = 0, CharacterSelect = 1 };
+            unsafe
+            {
+                this.uiContextService.SendMessage(UIMessage.kLogout, (uint)&logoutMessage, 0);
+            }
+        }, cancellationToken);
+    }
+
+    private async Task<bool> ValidateState(CancellationToken cancellationToken)
+    {
+        return await this.gameThreadService.QueueOnGameThread(() =>
+        {
+            return this.instanceContextService.GetInstanceType() is not API.Interop.GuildWars.InstanceType.Loading;
+        }, cancellationToken);
+    }
+
+    private unsafe bool IsCharSelectReady()
+    {
+        // GW UI state must report char select (2). kCheckUIState fills the value passed via lParam.
+        uint uiState = 10;
+        this.uiContextService.SendMessage(UIMessage.kCheckUIState, 0, (nuint)(&uiState));
+
+        var selectorFrame = this.GetCharSelectorFrame();
+        if (uiState != 2 ||
+            selectorFrame is null ||
+            !selectorFrame->IsVisible)
+        {
+            return false;
+        }
+
+        // The frame context must be fully populated (a real pointer) and belong to this frame.
+        var ctx = this.uiContextService.GetFrameContext<CharSelectorContext>(selectorFrame);
+        if (ctx.IsNull ||
+            (nuint)ctx.Pointer <= 0xFFFF)
+        {
+            return false;
+        }
+
+        return ctx.Pointer->FrameId == selectorFrame->FrameId;
+    }
+
+    private unsafe Frame* GetCharSelectorFrame()
+    {
+        var selectorFrame = this.uiContextService.GetFrameByLabel("Selector");
+        if (selectorFrame.IsNull)
+        {
+            return null;
+        }
+
+        return selectorFrame.Pointer;
+    }
+}

Daybreak.API/Services/ChatService.cs

@@ -0,0 +1,83 @@
+using Daybreak.API.Interop;
+using Daybreak.API.Interop.GuildWars;
+using Daybreak.API.Services.Interop;
+using System.Core.Extensions;
+using System.Extensions;
+
+namespace Daybreak.API.Services;
+
+public sealed class ChatService(
+    InstanceContextService instanceContextService,
+    GameThreadService gameThreadService,
+    UIContextService uiContextService)
+{
+    private readonly SemaphoreSlim semaphoreSlim = new(1);
+    private readonly InstanceContextService instanceContextService = instanceContextService.ThrowIfNull();
+    private readonly GameThreadService gameThreadService = gameThreadService.ThrowIfNull();
+    private readonly UIContextService uiContextService = uiContextService.ThrowIfNull();
+
+    /// <summary>
+    /// Adds a message to the chat. It does not send the message, it only shows it to the player.
+    /// </summary>
+    public async ValueTask AddMessageAsync(string message, string? sender, Channel channel, CancellationToken cancellationToken)
+    {
+        using var ctx = await this.semaphoreSlim.Acquire(cancellationToken);
+        await this.gameThreadService.QueueOnGameThread(() =>
+        {
+            if (this.instanceContextService.GetInstanceType() is InstanceType.Loading)
+            {
+                return;
+            }
+
+            var encodedMessage = string.Create(
+                3 + message.Length,
+                message,
+                static (span, msg) =>
+                {
+                    span[0] = '\u0108';
+                    span[1] = '\u0107';
+                    msg.AsSpan().CopyTo(span[2..]);
+                    span[^1] = '\u0001';
+                });
+
+            var encodedSender = sender is not null
+            ? string.Create(
+                3 + sender.Length,
+                sender,
+                static (span, msg) =>
+                {
+                    span[0] = '\u0108';
+                    span[1] = '\u0107';
+                    msg.AsSpan().CopyTo(span[2..]);
+                    span[^1] = '\u0001';
+                })
+            : default;
+
+            var encoded = encodedSender is null
+            ? encodedMessage
+            : string.Create(
+                encodedMessage.Length + encodedSender.Length + 6,
+                (encodedMessage, encodedSender),
+                static (span, state) =>
+                {
+                    span[0] = '\u076b';
+                    span[1] = '\u010a';
+                    state.encodedSender.AsSpan().CopyTo(span[2..]);
+                    span[2 + state.encodedSender.Length] = '\u0001';
+                    span[3 + state.encodedSender.Length] = '\u010b';
+                    state.encodedMessage.AsSpan().CopyTo(span[(4 + state.encodedSender.Length)..]);
+                    span[^2] = '\u0001';
+                });
+
+            unsafe
+            {
+                fixed (char* encodedPtr = encoded)
+                {
+                    using var packet = new UnmanagedStruct<kPrintChatMessage>(new kPrintChatMessage { Channel = (GWCA.GW.Chat.Channel)channel, Message = (nint)encodedPtr });
+                    this.uiContextService.SendMessage(UIMessage.kWriteToChatLog, (nuint)packet.Address, 0x0);
+                }
+            }
+
+        }, cancellationToken);
+    }
+}

Daybreak.API/Services/Interop/AgentContextService.cs

@@ -0,0 +1,11 @@
+using Daybreak.API.Interop;
+using Daybreak.API.Interop.GuildWars;
+
+namespace Daybreak.API.Services.Interop;
+
+public unsafe sealed class AgentContextService
+{
+    public uint GetPlayerAgentId() => GWCA.GW.PlayerMgr.GetPlayerAgentId(0);
+
+    public Agent* GetAgentById(uint agentId) => GWCA.GW.Agents.GetAgentByID(agentId);
+}

Daybreak.API/Services/Interop/GameContextService.cs

@@ -0,0 +1,16 @@
+using Daybreak.API.Interop;
+using Daybreak.API.Interop.GuildWars;
+
+namespace Daybreak.API.Services.Interop;
+
+public unsafe sealed class GameContextService
+{
+
+    public WrappedPointer<GameContext> GetGameContext() => GWCA.GW.GetGameContext();
+
+    public WrappedPointer<PreGameContext> GetPreGameContext() => GWCA.GW.GetPreGameContext();
+
+    public WrappedPointer<GuildWarsArray<CharacterInformation>> GetAvailableChars() => GWCA.GW.GetAvailableChars();
+
+    public bool IsMapLoaded() => GWCA.GW.Map.GetIsMapLoaded();
+}

Daybreak.API/Services/Interop/GameThreadService.cs

@@ -0,0 +1,92 @@
+using Daybreak.API.Interop;
+using Daybreak.API.Models;
+using System.Collections.Concurrent;
+using System.Runtime.InteropServices;
+using System.Security;
+
+namespace Daybreak.API.Services.Interop;
+
+public sealed class GameThreadService
+{
+    [SuppressUnmanagedCodeSecurity]
+    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+    private delegate void GameThreadCallback();
+
+    // Prevent GC of delegates passed to native code
+    private readonly ConcurrentDictionary<GameThreadCallback, bool> prevent_GC_callbacks = [];
+
+    public Task QueueOnGameThread(Action action, CancellationToken cancellationToken)
+    {
+        var taskCompletionSource = new TaskCompletionSource();
+        var item = new WorkItem(action, taskCompletionSource, cancellationToken);
+
+        GameThreadCallback callback = null!;
+        callback = () =>
+        {
+            try
+            {
+                if (item.CancellationToken.IsCancellationRequested)
+                {
+                    item.Cancel();
+                    return;
+                }
+
+                item.Execute();
+            }
+            catch (Exception ex)
+            {
+                item.Exception(ex);
+            }
+            finally
+            {
+                this.prevent_GC_callbacks.TryRemove(callback, out _);
+            }
+        };
+
+        // CRITICAL: Keep delegate alive until callback executes
+        this.prevent_GC_callbacks[callback] = true;
+
+        var funcPtr = Marshal.GetFunctionPointerForDelegate(callback);
+        GWCA.GW.GameThread.Enqueue(funcPtr, false);
+
+        return taskCompletionSource.Task;
+    }
+
+    public Task<T> QueueOnGameThread<T>(Func<T> action, CancellationToken cancellationToken)
+    {
+        var taskCompletionSource = new TaskCompletionSource<T>();
+        var item = new WorkItem<T>(action, taskCompletionSource, cancellationToken);
+
+        GameThreadCallback callback = null!;
+        callback = () =>
+        {
+            try
+            {
+                if (item.CancellationToken.IsCancellationRequested)
+                {
+                    item.Cancel();
+                    return;
+                }
+
+                item.Execute();
+            }
+            catch (Exception ex)
+            {
+                item.Exception(ex);
+            }
+            finally
+            {
+                // Remove from prevent-GC set after execution
+                this.prevent_GC_callbacks.TryRemove(callback, out _);
+            }
+        };
+
+        // CRITICAL: Keep delegate alive until callback executes
+        this.prevent_GC_callbacks[callback] = true;
+
+        var funcPtr = Marshal.GetFunctionPointerForDelegate(callback);
+        GWCA.GW.GameThread.Enqueue(funcPtr, false);
+
+        return taskCompletionSource.Task;
+    }
+}

Daybreak.API/Services/Interop/InstanceContextService.cs

@@ -0,0 +1,13 @@
+using Daybreak.API.Interop;
+using Daybreak.API.Interop.GuildWars;
+
+namespace Daybreak.API.Services.Interop;
+
+public sealed unsafe class InstanceContextService
+{
+    public WrappedPointer<AreaInfo> GetAreaInfo() => GWCA.GW.Map.GetMapInfo(0);
+
+    public ServerRegion GetServerRegion() => (Daybreak.API.Interop.GuildWars.ServerRegion)GWCA.GW.Map.GetRegion();
+
+    public InstanceType GetInstanceType() => (Daybreak.API.Interop.GuildWars.InstanceType)GWCA.GW.Map.GetInstanceType();
+}

Daybreak.API/Services/Interop/MemoryScanningService.cs

@@ -0,0 +1,439 @@
+using PeNet;
+using PeNet.Header.Pe;
+using System.Core.Extensions;
+using System.Diagnostics;
+using System.Extensions.Core;
+using System.Globalization;
+using System.Runtime.InteropServices;
+using System.Text;
+
+namespace Daybreak.API.Services.Interop;
+
+public sealed unsafe class MemoryScanningService(
+    ILogger<MemoryScanningService> logger)
+{
+    private readonly ILogger<MemoryScanningService> logger = logger.ThrowIfNull();
+    private readonly (nuint BaseAddress, ImageSectionHeader Section) textSection = GetSectionHeader(".text");
+    private readonly (nuint BaseAddress, ImageSectionHeader Section) dataSection = GetSectionHeader(".rdata");
+
+    public uint GameTlsIndex { get; } = GetGameTlsIndex();
+
+    public nuint FunctionFromNearCall(nuint callInstructionAddress, bool checkValidPtr = true)
+    {
+        var scopedLogger = this.logger.CreateScopedLogger();
+        if (callInstructionAddress is 0)
+        {
+            scopedLogger.LogError("Invalid call instruction address: 0x{address:X8}", callInstructionAddress);
+            return 0;
+        }
+
+        var opcode = Marshal.ReadByte((nint)callInstructionAddress);
+        var functionAddress = opcode switch
+        {
+            0xE8 => (nuint)((nint)callInstructionAddress + 5 + Marshal.ReadInt32((nint)(callInstructionAddress + 1))),
+            0xE9 => (nuint)((nint)callInstructionAddress + 5 + Marshal.ReadInt32((nint)(callInstructionAddress + 1))),
+            0xEB => (nuint)((nint)callInstructionAddress + 2 + (sbyte)Marshal.ReadByte((nint)(callInstructionAddress + 1))),
+            _ => (nuint)0
+        };
+
+        if (checkValidPtr && functionAddress is 0)
+        {
+            scopedLogger.LogError("Invalid function address: 0x{address:X8}", functionAddress);
+            return 0;
+        }
+
+        // Recursively resolve nested JMPs
+        var nestedCall = this.FunctionFromNearCall(functionAddress, checkValidPtr);
+        if (nestedCall != 0)
+        {
+            scopedLogger.LogInformation("Resolved nested call to: 0x{address:X8}", nestedCall);
+            return nestedCall;
+        }
+
+        scopedLogger.LogInformation("Resolved function address: 0x{address:X8}", functionAddress);
+        return functionAddress;
+    }
+
+    public nuint FindAssertion(
+        string assertionFile,
+        string assertionMessage,
+        uint lineNumber = 0,
+        int offset = 0)
+    {
+        Span<byte> pattern =
+        [
+            0x68, 0,0,0,0,      // push <line> / will be overwritten later
+            0xBA, 0,0,0,0,      // mov  edx,<file> / will be overwritten later
+            0xB9, 0,0,0,0       // mov  ecx,<msg > / will be overwritten later
+        ];
+
+        const string maskAll = "xxxxxxxxxxxxxxx";   // 15 × 'x'
+
+        var msgBytes = Encoding.ASCII.GetBytes(assertionMessage + '\0');
+        var msgMask = new string('x', msgBytes.Length);
+
+        var fileOrigBytes = Encoding.ASCII.GetBytes(assertionFile + '\0');
+        var fileOrigMask = new string('x', fileOrigBytes.Length);
+
+        var (rdataBase, rdataHdr) = this.dataSection;
+        var rdataStart = rdataBase + rdataHdr.VirtualAddress;
+        var rdataEnd = rdataStart + rdataHdr.VirtualSize;
+
+        nuint msgSearchPos = rdataStart;
+        while (true)
+        {
+            var msgPtr = FindInRange(msgBytes, msgMask, 0, msgSearchPos, rdataEnd);
+            if (msgPtr is 0)
+            {
+                break;                 // no more messages → we are done
+            }
+
+            msgSearchPos = msgPtr + 1; // next search starts just after the hit
+
+            // write ECX operand (little-endian) into the pattern
+            BitConverter.TryWriteBytes(pattern.Slice(11, 4), (uint)msgPtr);
+
+            var fileSearchPos = rdataStart;
+            while (true)
+            {
+                var filePtr = FindInRange(fileOrigBytes, fileOrigMask, 0, fileSearchPos, rdataEnd);
+
+                // fallbacks: lower-case and CamelCase, exactly like the C++
+                if (filePtr == 0)
+                {
+                    var lower = assertionFile.ToLowerInvariant();
+                    var lowerBytes = Encoding.ASCII.GetBytes(lower + '\0');
+                    filePtr = FindInRange(lowerBytes, new string('x', lowerBytes.Length), 0, fileSearchPos, rdataEnd);
+                }
+
+                if (filePtr == 0)
+                {
+                    var camel = ToCamelCase(assertionFile);
+                    var camelBytes = Encoding.ASCII.GetBytes(camel + '\0');
+                    filePtr = FindInRange(camelBytes, new string('x', camelBytes.Length), 0, fileSearchPos, rdataEnd);
+                }
+
+                if (filePtr == 0)
+                {
+                    break;                          // try next message
+                }
+
+                fileSearchPos = filePtr + 1;
+
+                // If what we found is "…/file.hpp" (no drive letter) fix it
+                if (Marshal.ReadByte((nint)(filePtr + 1)) != (byte)':')
+                {
+                    // look ≤128 bytes backward for ':' and back-up one char
+                    nuint colon = FindInRange([(byte)':'], "x", -1, filePtr, filePtr - 128);
+                    if (colon == 0)
+                    {
+                        continue; // failed → try next file hit
+                    }
+
+                    filePtr = colon;
+                }
+
+                // write EDX operand
+                BitConverter.TryWriteBytes(pattern.Slice(6, 4), (uint)filePtr);
+
+                nuint hit = 0;
+                if (lineNumber != 0 && (lineNumber & 0xff) == lineNumber)
+                {
+                    // PUSH imm8 variant  –  start matching at pattern[3]
+                    pattern[3] = 0x6A;           // opcode
+                    pattern[4] = (byte)lineNumber;
+                    hit = FindAddressInternal(
+                        this.textSection,
+                        pattern[3..].ToArray(),
+                        maskAll[3..],
+                        offset);
+                }
+
+                if (hit == 0 && lineNumber != 0)
+                {
+                    // PUSH imm32 variant  –  whole pattern
+                    pattern[0] = 0x68;
+                    BitConverter.TryWriteBytes(pattern.Slice(1, 4), lineNumber);
+                    hit = FindAddressInternal(
+                        this.textSection,
+                        pattern.ToArray(),
+                        maskAll,
+                        offset);
+                }
+
+                if (hit == 0 && lineNumber == 0)
+                {
+                    // No line number  –  match only from MOV EDX onward
+                    hit = FindAddressInternal(
+                        this.textSection,
+                        pattern[5..].ToArray(),
+                        maskAll[5..],
+                        offset);
+                }
+
+                if (hit != 0)
+                {
+                    return hit;           // found exactly what we wanted
+                }
+            }
+        }
+
+        return 0;                         // nothing matched
+    }
+
+    public nuint FindAndResolveAddress(byte[] pattern, string mask, int offset = 0)
+    {
+        var scopedLogger = this.logger.CreateScopedLogger();
+        var address = FindAddressInternal(this.textSection, pattern, mask, offset);
+        if (address is 0)
+        {
+            scopedLogger.LogError("Failed to find address");
+            return 0;
+        }
+
+        var ptr = (nuint)Marshal.ReadIntPtr((nint)address);
+        return ptr;
+    }
+
+    public nuint FindAddress(byte[] pattern, string mask, int offset = 0)
+    {
+        var address = FindAddressInternal(this.textSection, pattern, mask, offset);
+        return address;
+    }
+
+    public nuint FindAddress(byte[] pattern, string mask, int offset, nuint startAddress, nuint endAddress)
+    {
+        var address = FindAddressInternal(startAddress, endAddress, pattern, mask, offset);
+        return address;
+    }
+
+    public nuint ToFunctionStart(nuint callInstructionAddress, uint scanRange = 0x500)
+    {
+        if (callInstructionAddress == 0)
+        {
+            return 0;
+        }
+
+        // pattern: 55 8B EC   – mask: "xxx"
+        ReadOnlySpan<byte> prologue = [0x55, 0x8B, 0xEC];
+        const string mask = "xxx";
+
+        var start = callInstructionAddress;                // begin at the CALL itself
+        var end = callInstructionAddress - scanRange;    // scan backwards
+
+        return FindInRange(prologue, mask, 0, start, end);
+    }
+
+    public nuint FindNthUseOfString(string str, uint nth, int offset = 0, bool useTextSection = true)
+    {
+        var scopedLogger = this.logger.CreateScopedLogger();
+        var strBytes = Encoding.ASCII.GetBytes(str);
+        var mask = new string('x', strBytes.Length);
+
+        var foundStr = FindAddressInternal(this.dataSection, strBytes, mask, 0);
+        if (foundStr is 0)
+        {
+            scopedLogger.LogError("Failed to find string in .rdata section");
+            return 0;
+        }
+
+        var firstNullChar = FindInRange([0x0], "x", 1, foundStr, foundStr - 0x64);
+        if (firstNullChar is 0)
+        {
+            scopedLogger.LogError("Failed to find null terminator");
+            return 0;
+        }
+
+        return this.FindNthUseOfAddress(firstNullChar, nth, offset, useTextSection);
+    }
+
+    public nuint FindUseOfString(string str, int offset = 0, bool useTextSection = true)
+    {
+        return this.FindNthUseOfString(str, 0, offset, useTextSection);
+    }
+
+    public nuint FindNthUseOfWideString(string str, uint nth, int offset = 0, bool useTextSection = true)
+    {
+        var scopedLogger = this.logger.CreateScopedLogger();
+        var strBytes = Encoding.Unicode.GetBytes(str);
+        var mask = new string('x', strBytes.Length);
+
+        var foundStr = FindAddressInternal(this.dataSection, strBytes, mask, 0);
+        if (foundStr is 0)
+        {
+            scopedLogger.LogError("Failed to find wide string in .rdata section");
+            return 0;
+        }
+
+        var firstNullChar = FindInRange([0x0, 0x0], "xx", 2, foundStr, foundStr - 0x128);
+        if (firstNullChar is 0)
+        {
+            scopedLogger.LogError("Failed to find null terminator for wide string");
+            return 0;
+        }
+
+        return this.FindNthUseOfAddress(firstNullChar, nth, offset, useTextSection);
+    }
+
+    public nuint FindUseOfWideString(string str, int offset = 0, bool useTextSection = true)
+    {
+        return this.FindNthUseOfWideString(str, 0, offset, useTextSection);
+    }
+
+    private nuint FindNthUseOfAddress(nuint address, uint nth, int offset, bool useTextSection)
+    {
+        var (BaseAddress, Section) = useTextSection ? this.textSection : this.dataSection;
+        var addressBytes = BitConverter.GetBytes((uint)address);
+        var mask = "xxxx";
+
+        var currentAddress = BaseAddress + Section.VirtualAddress;
+        var endAddress = currentAddress + Section.VirtualSize;
+
+        uint foundCount = 0;
+        while (currentAddress < endAddress)
+        {
+            var found = FindAddressInternal(currentAddress, endAddress, addressBytes, mask, 0);
+            if (found is 0)
+            {
+                break;
+            }
+
+            if (foundCount == nth)
+            {
+                return (nuint)((nint)found + offset);
+            }
+
+            foundCount++;
+            currentAddress = found + 1;
+        }
+
+        return 0;
+    }
+
+    private static bool IsValidPtr(nuint address, (nuint BaseAddress, ImageSectionHeader Section) section)
+    {
+        return address > 0 && 
+            (ulong)address > section.Section.ImageBaseAddress &&
+            (ulong)address < (section.Section.ImageBaseAddress + section.Section.VirtualSize);
+    }
+
+    private static unsafe nuint FindInRange(
+        ReadOnlySpan<byte> pattern,
+        string mask,
+        int offset,
+        nuint start,
+        nuint end)
+    {
+        bool forward = start < end;
+        int patLength = pattern.Length;
+
+        if (forward)
+        {
+            end -= (uint)patLength;                 // forward scan ⇒ clamp tail
+        }
+
+        var cur = start;
+        while (forward ? cur <= end : cur >= end)
+        {
+            if (Marshal.ReadByte((nint)cur) == pattern[0])
+            {
+                var matched = true;
+                for (int i = 1; i < patLength && matched; ++i)
+                {
+                    if (mask[i] == 'x' &&
+                        Marshal.ReadByte((nint)(cur + (uint)i)) != pattern[i])
+                    {
+                        matched = false;
+                    }
+                }
+
+                if (matched)
+                {
+                    return (nuint)((long)cur + offset);
+                }
+            }
+
+            cur = forward ? cur + 1 : cur - 1;
+            if (!forward && cur == 0)               // prevent unsigned wrap-around
+            {
+                break;
+            }
+        }
+
+        return 0;
+    }
+
+    private static string ToCamelCase(string text)
+        => CultureInfo.InvariantCulture.TextInfo.ToTitleCase(text.ToLowerInvariant());
+
+    private static nuint FindAddressInternal((nuint BaseAddress, ImageSectionHeader Section) section, byte[] pattern, string mask, int offset = 0)
+    {
+        var textStart = section.BaseAddress + section.Section.VirtualAddress;
+        var textEnd = textStart + section.Section.VirtualSize - (uint)pattern.Length;
+        return FindAddressInternal(textStart, textEnd, pattern, mask, offset);
+    }
+
+    private static nuint FindAddressInternal(nuint startAddr, nuint endAddr, byte[] pattern, string mask, int offset = 0)
+    {
+        for (var cur = startAddr; cur <= endAddr; ++cur)
+        {
+            if (Marshal.ReadByte((nint)cur) != pattern[0])
+            {
+                continue;
+            }
+
+            var match = true;
+            for (var i = 1; i < pattern.Length && match; ++i)
+            {
+                if (mask[i] is 'x' && Marshal.ReadByte((nint)(cur + (uint)i)) != pattern[i])
+                {
+                    match = false;
+                }
+            }
+
+            if (match)
+            {
+                return (nuint)((nint)cur + offset);
+            }
+        }
+
+        return 0;
+    }
+
+    private static (nuint, ImageSectionHeader) GetSectionHeader(string headerName)
+    {
+        var m = Process.GetCurrentProcess().MainModule ?? throw new InvalidOperationException("Failed to initialize memory scanner. Failed to find main module");
+        var baseAddr = (nuint)m.BaseAddress;
+        var pe = new PeFile(m.FileName);
+        var textHdr = pe.ImageSectionHeaders?.FirstOrDefault(h => h.Name == headerName);
+        return textHdr is null
+            ? throw new InvalidOperationException($"Failed to initialize memory scanner. Failed to find {headerName} section")
+            : ((nuint, ImageSectionHeader))(baseAddr, textHdr);
+    }
+
+    private static uint GetGameTlsIndex()
+    {
+        var m = Process.GetCurrentProcess().MainModule ?? throw new InvalidOperationException("Failed to get TLS index. Failed to find main module");
+        var baseAddr = (nint)m.BaseAddress;
+        var pe = new PeFile(m.FileName);
+
+        // Get the TLS data directory entry (index 9 = IMAGE_DIRECTORY_ENTRY_TLS)
+        var tlsDirectory = pe.ImageNtHeaders?.OptionalHeader.DataDirectory[9];
+        if (tlsDirectory is null || tlsDirectory.VirtualAddress == 0)
+        {
+            throw new InvalidOperationException("Failed to get TLS index. No TLS directory found");
+        }
+
+        // Calculate the address of the TLS directory in memory
+        var tlsDirectoryAddress = baseAddr + (nint)tlsDirectory.VirtualAddress;
+
+        // Read the IMAGE_TLS_DIRECTORY structure
+        // AddressOfIndex is at offset 8 (after StartAddressOfRawData and EndAddressOfRawData)
+        var addressOfIndexPtr = Marshal.ReadIntPtr(tlsDirectoryAddress + 8);
+
+        // Read the TLS index from the location pointed to by AddressOfIndex
+        var tlsIndex = (uint)Marshal.ReadInt32(addressOfIndexPtr);
+
+        return tlsIndex;
+    }
+}

Daybreak.API/Services/Interop/PartyContextService.cs

@@ -0,0 +1,15 @@
+using Daybreak.API.Interop;
+using static Daybreak.API.Interop.GWCA.GW.Constants;
+
+namespace Daybreak.API.Services.Interop;
+
+public sealed class PartyContextService
+{
+    public bool AddHero(uint heroId) => GWCA.GW.PartyMgr.AddHero((HeroID)heroId);
+
+    public bool KickHero(uint heroId) => GWCA.GW.PartyMgr.KickHero((HeroID)heroId);
+
+    public bool KickAllHeroes() => GWCA.GW.PartyMgr.KickAllHeroes();
+
+    public bool LeaveParty() => GWCA.GW.PartyMgr.LeaveParty();
+}

Daybreak.API/Services/Interop/PlatformContextService.cs

@@ -0,0 +1,14 @@
+using Daybreak.API.Interop;
+
+namespace Daybreak.API.Services.Interop;
+
+public sealed unsafe class PlatformContextService
+{
+    public nint GetWindowHandle()
+    {
+        var hwnd = GWCA.GW.MemoryMgr.GetGWWindowHandle();
+        // HWND is defined as HWND__* in Windows - the pointer value itself IS the handle,
+        // not a pointer to a struct containing the handle. Cast directly to nint.
+        return (nint)hwnd;
+    }
+}

Daybreak.API/Services/Interop/PreferencesService.cs

@@ -0,0 +1,11 @@
+using Daybreak.API.Interop;
+using Daybreak.API.Interop.GuildWars;
+
+namespace Daybreak.API.Services.Interop;
+
+public sealed class PreferencesService()
+{
+    public uint? GetEnumPreference(EnumPreference pref) => GWCA.GW.UI.GetPreference((GWCA.GW.UI.EnumPreference)pref);
+
+    public bool SetEnumPreference(EnumPreference pref, uint value) => GWCA.GW.UI.SetPreference((GWCA.GW.UI.EnumPreference)pref, value);
+}

Daybreak.API/Services/Interop/SkillbarContextService.cs

@@ -0,0 +1,9 @@
+using Daybreak.API.Interop;
+using Daybreak.API.Interop.GuildWars;
+
+namespace Daybreak.API.Services.Interop;
+
+public sealed class SkillbarContextService
+{
+    public unsafe void LoadBuild(uint agentId, SkillTemplate* template) => GWCA.GW.SkillbarMgr.LoadSkillTemplate(agentId, template);
+}

Daybreak.API/Services/Interop/UIContextService.cs

@@ -0,0 +1,146 @@
+using Daybreak.API.Interop;
+using Daybreak.API.Interop.GuildWars;
+using System.Collections.Concurrent;
+using System.Core.Extensions;
+using System.Extensions.Core;
+using System.Runtime.InteropServices;
+using System.Security;
+
+namespace Daybreak.API.Services.Interop;
+
+public sealed class UIContextService(ILogger<UIContextService> logger)
+{
+    [SuppressUnmanagedCodeSecurity]
+    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+    private unsafe delegate void AsyncDecodeStrCallback(void* param, ushort* decodedString);
+
+    // Prevent GC of delegates passed to native code
+    private readonly ConcurrentDictionary<AsyncDecodeStrCallback, bool> prevent_GC_callbacks = [];
+
+    private readonly ILogger<UIContextService> logger = logger.ThrowIfNull();
+
+    public unsafe WrappedPointer<T> GetFrameContext<T>(WrappedPointer<Frame> frame)
+        where T : unmanaged
+    {
+        return (T*)GWCA.GW.UI.GetFrameContext(frame.Pointer);
+    }
+
+    public unsafe WrappedPointer<Frame> GetChildFrame(WrappedPointer<Frame> parent, uint childOffset)
+    {
+        var scopedLogger = this.logger.CreateScopedLogger();
+        if (parent.IsNull)
+        {
+            scopedLogger.LogError("Parent frame is null");
+            return null;
+        }
+
+        return GWCA.GW.UI.GetChildFrame(parent, childOffset);
+    }
+
+    public WrappedPointer<Frame> GetButtonActionFrame()
+    {
+        return this.GetChildFrame(this.GetFrameByLabel("Game"), 6);
+    }
+
+    public unsafe bool SendFrameUIMessage(WrappedPointer<Frame> frame, UIMessage messageId, void* arg1, void* arg2 = null)
+    {
+        var scopedLogger = this.logger.CreateScopedLogger();
+        if (frame.IsNull)
+        {
+            scopedLogger.LogError("Frame is null");
+            return false;
+        }
+
+        return GWCA.GW.UI.SendFrameUIMessage(frame, (GWCA.GW.UI.UIMessage)messageId, arg1, (nint)arg2);
+    }
+
+    public unsafe bool SetFrameDisabled(WrappedPointer<Frame> frame, bool disabled) => GWCA.GW.UI.SetFrameDisabled(frame, disabled);
+
+    public unsafe bool SetFrameVisible(WrappedPointer<Frame> frame, bool visible) => GWCA.GW.UI.SetFrameVisible(frame, visible);
+
+    public unsafe bool KeyDown(GWCA.GW.UI.ControlAction action, WrappedPointer<Frame> frame) => GWCA.GW.UI.Keydown(action, frame);
+
+    public unsafe bool KeyUp(GWCA.GW.UI.ControlAction action, WrappedPointer<Frame> frame) => GWCA.GW.UI.Keyup(action, frame);
+
+    public unsafe WrappedPointer<Frame> GetFrameByLabel(string label)
+    {
+        fixed (char* labelPtr = label)
+        {
+            return GWCA.GW.UI.GetFrameByLabel((ushort*)labelPtr);
+        }
+    }
+
+    public unsafe WrappedPointer<Frame> GetFrameById(uint frameId) => GWCA.GW.UI.GetFrameById(frameId);
+
+    public unsafe WrappedPointer<Frame> GetParentFrame(WrappedPointer<Frame> frame)
+    {
+        if (frame.IsNull)
+        {
+            return null;
+        }
+
+        return GWCA.GW.UI.GetParentFrame(frame);
+    }
+
+    public unsafe bool ButtonClick(WrappedPointer<Frame> frame)
+    {
+        if (frame.IsNull)
+        {
+            return false;
+        }
+
+        return GWCA.GW.UI.ButtonClick(frame);
+    }
+
+    public unsafe void SendMessage(UIMessage message, nuint wParam, nuint lParam) => GWCA.GW.UI.SendUIMessage((GWCA.GW.UI.UIMessage)message, (void*)wParam, (nint)lParam);
+
+    public unsafe Task<string> AsyncDecodeStringAsync(ushort* encodedString, GWCA.GW.Constants.Language language = GWCA.GW.Constants.Language.Unknown, CancellationToken cancellationToken = default)
+    {
+        var taskCompletionSource = new TaskCompletionSource<string>();
+        cancellationToken.Register(() => taskCompletionSource.TrySetCanceled(cancellationToken));
+        void callback(void* param, ushort* decodedString)
+        {
+            try
+            {
+                if (cancellationToken.IsCancellationRequested)
+                {
+                    taskCompletionSource.TrySetCanceled(cancellationToken);
+                    return;
+                }
+
+                // Convert the decoded wide string to a managed string
+                var result = decodedString != null
+                    ? new string((char*)decodedString)
+                    : string.Empty;
+
+                taskCompletionSource.TrySetResult(result);
+            }
+            catch (Exception ex)
+            {
+                taskCompletionSource.TrySetException(ex);
+            }
+            finally
+            {
+                this.prevent_GC_callbacks.TryRemove(callback, out _);
+            }
+        }
+
+        // CRITICAL: Keep delegate alive until callback executes
+        this.prevent_GC_callbacks[callback] = true;
+
+        var funcPtr = Marshal.GetFunctionPointerForDelegate(callback);
+        // GWCA's AsyncDecodeStr handles language switching internally (sets language, decodes, restores)
+        GWCA.GW.UI.AsyncDecodeStr(encodedString, funcPtr, 0, language);
+
+        return taskCompletionSource.Task;
+    }
+
+    public unsafe Task<string> AsyncDecodeStringAsync(string encodedString, GWCA.GW.Constants.Language language = GWCA.GW.Constants.Language.Unknown, CancellationToken cancellationToken = default)
+    {
+        // Pin the string and convert to ushort*
+        fixed (char* encodedPtr = encodedString)
+        {
+            return this.AsyncDecodeStringAsync((ushort*)encodedPtr, language, cancellationToken);
+        }
+    }
+}

Daybreak.API/Services/InventoryService.cs

@@ -0,0 +1,136 @@
+using Daybreak.API.Interop;
+using Daybreak.API.Interop.GuildWars;
+using Daybreak.API.Services.Interop;
+using Daybreak.Shared.Models.Api;
+using Daybreak.Shared.Models.Guildwars;
+using System.Extensions.Core;
+using System.Runtime.CompilerServices;
+using System.Text;
+
+namespace Daybreak.API.Services;
+
+public sealed class InventoryService(
+    GameContextService gameContextService,
+    GameThreadService gameThreadService,
+    UIService uIService,
+    ILogger<InventoryService> logger)
+{
+    private readonly GameContextService gameContextService = gameContextService;
+    private readonly GameThreadService gameThreadService = gameThreadService;
+    private readonly UIService uIService = uIService;
+    private readonly ILogger<InventoryService> logger = logger;
+
+    public async Task<InventoryInformation?> GetInventoryInformation(CancellationToken cancellationToken)
+    {
+        var scopedLogger = this.logger.CreateScopedLogger();
+        var itemTuples = await this.gameThreadService.QueueOnGameThread(() =>
+        {
+            unsafe
+            {
+                var gameContext = this.gameContextService.GetGameContext();
+                if (gameContext.IsNull)
+                {
+                    scopedLogger.LogError("Game context is null");
+                    return default;
+                }
+
+                var inventory = gameContext.Pointer->Items->Inventory;
+                if (inventory is null)
+                {
+                    scopedLogger.LogError("Inventory is null");
+                    return default;
+                }
+
+                var itemTuples = new List<(GWCA.GW.Constants.BagType Type, List<(uint ModelId, string EncodedCompleteName, string EncodedSingleName, string EncodedName, bool Inscribable, int Quantity, uint[] Modifiers, ItemType ItemType, uint Interaction, uint ModelFileId, Byte DyeTint, ushort Value)>)>();
+                for (var i = 0; i < 23; i++)
+                {
+                    // Use GWCA helper to fetch bag pointers by index — safer than reading an inline array directly.
+                    var bag = GWCA.GW.Items.GetBagByIndex((uint)i);
+                    if (bag is null)
+                    {
+                        continue;
+                    }
+
+                    var retBag = new List<(uint ModelId, string EncodedCompleteName, string EncodedSingleName, string EncodedName, bool Inscribable, int Quantity, uint[] Modifiers, ItemType ItemType, uint Interaction, uint ModelFileId, Byte DyeTint, ushort Value)>();
+                    itemTuples.Add((bag->BagType, retBag));
+                    if (bag->ItemsCount is 0)
+                    {
+                        continue;
+                    }
+
+                    foreach (var itemPtr in bag->Items.Value)
+                    {
+                        if (itemPtr is 0)
+                        {
+                            continue;
+                        }
+
+                        var item = (ItemStruct*)itemPtr;
+                        var singleItemName = new string((char*)item->SingleItemName);
+                        var nameEncoded = new string((char*)item->NameEnc);
+                        var completeNameEncoded = new string((char*)item->CompleteNameEnc);
+                        var modifiers = new uint[item->ModStructSize];
+                        for (var j = 0; j < item->ModStructSize; j++)
+                        {
+                            modifiers[j] = item->ModStruct[j].Mod;
+                        }
+
+                        retBag.Add((item->ModelId, completeNameEncoded, singleItemName, nameEncoded, (item->Interaction & 0x08000000) != 0, item->Quantity, modifiers, (ItemType)item->Type, item->Interaction, item->ModelFileId, item->Dye.DyeTint, item->Value));
+                    }
+                }
+
+                return itemTuples;
+            }
+        }, cancellationToken);
+
+        if (itemTuples is null)
+        {
+            return default;
+        }
+
+        // Decode strings sequentially to avoid race conditions with the game's TextParser language field.
+        // Parallel decoding causes crashes because multiple operations race to set/restore the language.
+        var decodedItemTuples = new List<(GWCA.GW.Constants.BagType Type, List<(uint ModelId, string EncodedName, string? DecodedName, string EncodedSingleName, string? DecodedSingleName, string EncodedCompleteName, string? DecodedCompleteName, bool Inscribable, int Quantity, uint[] Modifiers, ItemType ItemType, uint Interaction, uint ModelFileId, byte DyeTint, ushort Value)> Items)>();
+        foreach (var tuple in itemTuples)
+        {
+            var decodedItems = new List<(uint ModelId, string EncodedName, string? DecodedName, string EncodedSingleName, string? DecodedSingleName, string EncodedCompleteName, string? DecodedCompleteName, bool Inscribable, int Quantity, uint[] Modifiers, ItemType ItemType, uint Interaction, uint ModelFileId, byte DyeTint, ushort Value)>();
+            foreach (var item in tuple.Item2)
+            {
+                var decodedName = await this.uIService.DecodeString(item.EncodedName, (GWCA.GW.Constants.Language)Language.English, cancellationToken);
+                var decodedCompleteName = await this.uIService.DecodeString(item.EncodedCompleteName, (GWCA.GW.Constants.Language)Language.English, cancellationToken);
+                var decodedSingleName = await this.uIService.DecodeString(item.EncodedSingleName, (GWCA.GW.Constants.Language)Language.English, cancellationToken);
+                decodedItems.Add((item.ModelId, item.EncodedName, decodedName, item.EncodedSingleName, decodedSingleName, item.EncodedCompleteName, decodedCompleteName, item.Inscribable, item.Quantity, item.Modifiers, item.ItemType, item.Interaction, item.ModelFileId, item.DyeTint, item.Value));
+            }
+
+            decodedItemTuples.Add((tuple.Type, decodedItems));
+        }
+
+        return new InventoryInformation(
+            Bags: [.. decodedItemTuples.Select(tuple =>
+                new BagEntry(
+                    BagType: tuple.Type.ToString(),
+                    Items: [.. tuple.Items.Select(item =>
+                        new ItemEntry(
+                            ItemModelId: item.ModelId,
+                            EncodedName: ToBase64(item.EncodedName),
+                            DecodedName: item.DecodedName ?? string.Empty,
+                            EncodedSingleName: ToBase64(item.EncodedSingleName),
+                            DecodedSingleName: item.DecodedSingleName ?? string.Empty,
+                            EncodedCompleteName: ToBase64(item.EncodedCompleteName),
+                            DecodedCompleteName: item.DecodedCompleteName ?? string.Empty,
+                            Inscribable: item.Inscribable,
+                            Quantity: item.Quantity,
+                            Modifiers: item.Modifiers,
+                            Properties: [.. ItemProperty.ParseItemModifiers([.. item.Modifiers.Select(m => (Shared.Models.Guildwars.ItemModifier)m)])],
+                            ItemType: item.ItemType.ToString(),
+                            Interaction: item.Interaction,
+                            ModelFileId: item.ModelFileId,
+                            DyeTint: item.DyeTint,
+                            Value: item.Value))]))]);
+    }
+
+    private static string ToBase64(string encoded)
+    {
+        return Convert.ToBase64String(Encoding.Unicode.GetBytes(encoded));
+    }
+}

Daybreak.API/Services/LoginService.cs

@@ -0,0 +1,37 @@
+using Daybreak.API.Services.Interop;
+using Daybreak.Shared.Models.Api;
+using System.Core.Extensions;
+using System.Extensions.Core;
+
+namespace Daybreak.API.Services;
+
+public sealed class LoginService(
+    GameThreadService gameThreadService,
+    GameContextService gameContextService,
+    ILogger<LoginService> logger)
+{
+    private readonly GameThreadService gameThreadService = gameThreadService.ThrowIfNull();
+    private readonly GameContextService gameContextService = gameContextService.ThrowIfNull();
+    private readonly ILogger<LoginService> logger = logger.ThrowIfNull();
+
+    public Task<LoginInfo?> GetLoginInformation(CancellationToken cancellationToken)
+    {
+        var scopedLogger = this.logger.CreateScopedLogger();
+        return this.gameThreadService.QueueOnGameThread(() =>
+        {
+            unsafe
+            {
+                var gameContext = this.gameContextService.GetGameContext();
+                if (gameContext.IsNull || gameContext.Pointer->Character is null)
+                {
+                    scopedLogger.LogError("Game context is not initialized");
+                    return default;
+                }
+
+                var playerName = new string(gameContext.Pointer->Character->PlayerName);
+                var email = new string(gameContext.Pointer->Character->PlayerEmail);
+                return new LoginInfo(email, playerName);
+            }
+        }, cancellationToken);
+    }
+}

Daybreak.API/Services/MainPlayerService.cs

@@ -0,0 +1,528 @@
+using Daybreak.API.Extensions;
+using Daybreak.API.Interop;
+using Daybreak.API.Interop.GuildWars;
+using Daybreak.API.Models;
+using Daybreak.API.Services.Interop;
+using Daybreak.Shared.Models;
+using Daybreak.Shared.Models.Api;
+using Daybreak.Shared.Models.Builds;
+using Daybreak.Shared.Services.BuildTemplates;
+using System.Core.Extensions;
+using System.Extensions;
+using System.Extensions.Core;
+using System.Runtime.CompilerServices;
+using ZLinq;
+using InstanceType = Daybreak.API.Interop.GuildWars.InstanceType;
+
+namespace Daybreak.API.Services;
+
+public sealed class MainPlayerService : IDisposable
+{
+    private readonly ChatService chatService;
+    private readonly InstanceContextService instanceContextService;
+    private readonly IBuildTemplateManager buildTemplateManager;
+    private readonly SkillbarContextService skillbarContextService;
+    private readonly AgentContextService agentContextService;
+    private readonly GameContextService gameContextService;
+    private readonly GameThreadService gameThreadService;
+    private readonly ILogger<MainPlayerService> logger;
+
+    public MainPlayerService(
+        ChatService chatService,
+        InstanceContextService instanceContextService,
+        IBuildTemplateManager buildTemplateManager,
+        SkillbarContextService skillbarContextService,
+        GameContextService gameContextService,
+        AgentContextService agentContextService,
+        GameThreadService gameThreadService,
+        ILogger<MainPlayerService> logger)
+    {
+        this.chatService = chatService.ThrowIfNull();
+        this.instanceContextService = instanceContextService.ThrowIfNull();
+        this.buildTemplateManager = buildTemplateManager.ThrowIfNull();
+        this.skillbarContextService = skillbarContextService.ThrowIfNull();
+        this.gameThreadService = gameThreadService.ThrowIfNull();
+        this.agentContextService = agentContextService.ThrowIfNull();
+        this.gameContextService = gameContextService.ThrowIfNull();
+        this.logger = logger.ThrowIfNull();
+    }
+
+    public void Dispose()
+    {
+    }
+
+    public async Task<bool> SetCurrentBuild(string buildCode, CancellationToken cancellationToken)
+    {
+        var scopedLogger = this.logger.CreateScopedLogger();
+        if (!this.buildTemplateManager.TryDecodeTemplate(buildCode, out var build) ||
+            build is not SingleBuildEntry singleBuild)
+        {
+            scopedLogger.LogError("Failed to decode build template from code {buildCode}", buildCode);
+            return false;
+        }
+
+        var result = await this.gameThreadService.QueueOnGameThread(() =>
+        {
+            unsafe
+            {
+                if (this.instanceContextService.GetInstanceType() is InstanceType.Loading or InstanceType.Explorable)
+                {
+                    scopedLogger.LogError("Not in outpost");
+                    return default;
+                }
+
+                var gameContext = this.gameContextService.GetGameContext();
+                if (gameContext.IsNull ||
+                    gameContext.Pointer->World is null)
+                {
+                    scopedLogger.LogError("Failed to get game context");
+                    return false;
+                }
+
+                var playerAgentId = this.agentContextService.GetPlayerAgentId();
+                if (playerAgentId is 0x0)
+                {
+                    scopedLogger.LogError("Failed to get player agent id");
+                    return false;
+                }
+
+                var playerAgent = this.agentContextService.GetAgentById(playerAgentId);
+                if (playerAgent is null ||
+                    playerAgent->Type is not (uint)AgentType.Living ||
+                    playerAgent->AgentId != playerAgentId)
+                {
+                    scopedLogger.LogError("Player agent {playerAgentId} not found in agent array", playerAgentId);
+                    return false;
+                }
+
+                var livingAgent = (AgentLiving*)playerAgent;
+                if (livingAgent->Level != gameContext.Pointer->World->Level)
+                {
+                    scopedLogger.LogError("Player agent not found. Player level mismatch: {level} != {gameLevel}", livingAgent->Level, gameContext.Pointer->World->Level);
+                    return false;
+                }
+
+                var agentProfession = gameContext.Pointer->World->PartyProfessionStates.AsValueEnumerable().FirstOrDefault(p => p.AgentId == playerAgentId);
+                if (agentProfession.AgentId != playerAgentId)
+                {
+                    scopedLogger.LogError("Failed to find agent profession for player agent id {agentId}", playerAgentId);
+                    return false;
+                }
+
+                var validationRequest = new BuildTemplateValidationRequest(
+                    (uint)singleBuild.Primary.Id,
+                    (uint)singleBuild.Secondary.Id,
+                    singleBuild.Skills.AsValueEnumerable().Select(s => (uint)s.Id).ToArray(),
+                    livingAgent->Tags->Primary,
+                    agentProfession.UnlockedProfessions,
+                    [.. gameContext.Pointer->World->UnlockedCharacterSkills]);
+
+                if (!this.buildTemplateManager.CanTemplateApply(validationRequest))
+                {
+                    scopedLogger.LogError("Build template validation failed for player agent id {agentId}", playerAgentId);
+                    return false;
+                }
+
+                var attributeIds = new AttributeArray12();
+                var attributeValues = new Array12Uint();
+                var skills = new SkillIDArray8();
+                for (var i = 0; i < singleBuild.Attributes.Count && i < 12; i++)
+                {
+                    if (singleBuild.Attributes[i].Attribute is null)
+                    {
+                        continue;
+                    }
+
+                    attributeIds[i] = (GWCA.GW.Constants.Attribute)singleBuild.Attributes[i].Attribute!.Id;
+                    attributeValues[i] = (uint)singleBuild.Attributes[i].Points;
+                }
+
+                for (var i = 0; i < singleBuild.Skills.Count && i < 8; i++)
+                {
+                    skills[i] = (GWCA.GW.Constants.SkillID)singleBuild.Skills[i].Id;
+                }
+
+                var skillTemplate = new SkillTemplate
+                {
+                    Primary = (GWCA.GW.Constants.Profession)singleBuild.Primary.Id,
+                    Secondary = (GWCA.GW.Constants.Profession)singleBuild.Secondary.Id,
+                    AttributesCount = (uint)Math.Min(singleBuild.Attributes.Count, 12),
+                    AttributeIds = attributeIds,
+                    Skills = skills,
+                };
+                Unsafe.CopyBlock(skillTemplate.AttributeValues, Unsafe.AsPointer(ref attributeValues), (uint)(12 * sizeof(uint)));
+                this.skillbarContextService.LoadBuild(playerAgentId, &skillTemplate);
+                return true;
+            }
+        }, cancellationToken);
+
+        if (result)
+        {
+            await this.chatService.AddMessageAsync("Build applied successfully.", "Daybreak.API", Channel.CHANNEL_MODERATOR, cancellationToken);
+        }
+        else
+        {
+            await this.chatService.AddMessageAsync("Failed to apply build.", "Daybreak.API", Channel.CHANNEL_MODERATOR, cancellationToken);
+        }
+
+        return result;
+    }
+
+    public Task<BuildEntry?> GetCurrentBuild(CancellationToken cancellationToken)
+    {
+        var scopedLogger = this.logger.CreateScopedLogger();
+        return this.gameThreadService.QueueOnGameThread(() =>
+        {
+            unsafe
+            {
+                if (this.instanceContextService.GetInstanceType() is InstanceType.Loading)
+                {
+                    scopedLogger.LogError("Not loaded");
+                    return default;
+                }
+
+                var gameContext = this.gameContextService.GetGameContext();
+                if (gameContext.IsNull)
+                {
+                    scopedLogger.LogError("Failed to get game context");
+                    return default;
+                }
+
+                var playerAgentId = this.agentContextService.GetPlayerAgentId();
+                if (playerAgentId is 0x0)
+                {
+                    scopedLogger.LogError("Failed to get player agent id");
+                    return default;
+                }
+
+                var skillbarContext = gameContext.Pointer->World->Skillbar.Value.AsValueEnumerable().FirstOrDefault(s => s.AgentId == playerAgentId);
+                if (skillbarContext.AgentId != playerAgentId)
+                {
+                    scopedLogger.LogError("Failed to find skillbar context for player agent id {agentId}", playerAgentId);
+                    return default;
+                }
+
+                var agentAttributes = gameContext.Pointer->World->Attributes.Value.AsValueEnumerable().FirstOrDefault(a => a.AgentId == playerAgentId);
+                if (agentAttributes.AgentId != playerAgentId)
+                {
+                    scopedLogger.LogError("Failed to find agent attributes for player agent id {agentId}", playerAgentId);
+                    return default;
+                }
+
+                var professionContext = gameContext.Pointer->World->PartyProfessionStates.AsValueEnumerable().FirstOrDefault(p => p.AgentId == playerAgentId);
+                if (professionContext.AgentId != playerAgentId)
+                {
+                    scopedLogger.LogError("Failed to find agent profession for player agent id {agentId}", playerAgentId);
+                    return default;
+                }
+
+                return new BuildEntry(
+                    (int)professionContext.Primary,
+                    (int)professionContext.Secondary,
+                    [.. agentAttributes.Attribute.GetAttributeEntryList()],
+                    [(uint)skillbarContext.Skills[0].SkillId, (uint)skillbarContext.Skills[1].SkillId, (uint)skillbarContext.Skills[2].SkillId, (uint)skillbarContext.Skills[3].SkillId,
+                    (uint)skillbarContext.Skills[4].SkillId, (uint)skillbarContext.Skills[5].SkillId, (uint)skillbarContext.Skills[6].SkillId, (uint)skillbarContext.Skills[7].SkillId]);
+            }
+        }, cancellationToken);
+    }
+
+    public Task<QuestLogInformation?> GetQuestLog(CancellationToken cancellationToken)
+    {
+        var scopedLogger = this.logger.CreateScopedLogger();
+        return this.gameThreadService.QueueOnGameThread(() =>
+        {
+            unsafe
+            {
+                if (this.instanceContextService.GetInstanceType() is InstanceType.Loading)
+                {
+                    scopedLogger.LogError("Not loaded");
+                    return default;
+                }
+
+                var gameContext = this.gameContextService.GetGameContext();
+                if (gameContext.IsNull || gameContext.Pointer->World is null)
+                {
+                    scopedLogger.LogError("Game context is not initialized");
+                    return default;
+                }
+
+                return new QuestLogInformation(
+                    (uint)gameContext.Pointer->World->ActiveQuestId,
+                    gameContext.Pointer->World->QuestLog.Value.AsValueEnumerable().Select(q => new QuestInformation((uint)q.QuestId, (uint)q.MapFrom)).ToList());
+            }
+        }, cancellationToken);
+    }
+
+    public Task<MainPlayerInformation?> GetMainPlayerInformation(CancellationToken cancellationToken)
+    {
+        var scopedLogger = this.logger.CreateScopedLogger();
+        return this.gameThreadService.QueueOnGameThread(() =>
+        {
+            unsafe
+            {
+                if (this.instanceContextService.GetInstanceType() is InstanceType.Loading)
+                {
+                    scopedLogger.LogError("Not loaded");
+                    return default;
+                }
+
+                var gameContext = this.gameContextService.GetGameContext();
+                if (gameContext.IsNull || gameContext.Pointer->Character is null ||
+                    gameContext.Pointer->World is null)
+                {
+                    scopedLogger.LogError("Game context is not initialized");
+                    return default;
+                }
+
+                var playerName = new string (gameContext.Pointer->Character->PlayerName);
+                var email = new string(gameContext.Pointer->Character->PlayerEmail);
+                var accountName = new string((char*)gameContext.Pointer->World->AccountInfo->AccountName);
+                return new MainPlayerInformation(
+                    (*(Uuid*)gameContext.Pointer->Character->PlayerUuid).ToString(),
+                    email,
+                    playerName,
+                    accountName,
+                    gameContext.Pointer->World->AccountInfo->Wins,
+                    gameContext.Pointer->World->AccountInfo->Losses,
+                    gameContext.Pointer->World->AccountInfo->Rating,
+                    gameContext.Pointer->World->AccountInfo->QualifierPoints,
+                    gameContext.Pointer->World->AccountInfo->Rank,
+                    gameContext.Pointer->World->AccountInfo->TournamentRewardPoints);
+            }
+        }, cancellationToken);
+    }
+
+    public Task<MainPlayerState?> GetMainPlayerState(CancellationToken cancellationToken)
+    {
+        var scopedLogger = this.logger.CreateScopedLogger();
+        return this.gameThreadService.QueueOnGameThread(() =>
+        {
+            unsafe
+            {
+                if (this.instanceContextService.GetInstanceType() is InstanceType.Loading)
+                {
+                    scopedLogger.LogError("Not loaded");
+                    return default;
+                }
+
+                var gameContext = this.gameContextService.GetGameContext();
+                var playerAgentId = this.agentContextService.GetPlayerAgentId();
+                if (gameContext.IsNull ||
+                    gameContext.Pointer->World is null ||
+                    gameContext.Pointer->Character is null ||
+                    playerAgentId is 0x0)
+                {
+                    scopedLogger.LogDebug("Game data is not yet initialized");
+                    return default;
+                }
+
+                var playerAgent = this.agentContextService.GetAgentById(playerAgentId);
+                if (playerAgent is null ||
+                    playerAgent->Type is not (uint)AgentType.Living ||
+                    playerAgent->AgentId != playerAgentId)
+                {
+                    scopedLogger.LogError("Player agent {playerAgentId} not found in agent array", playerAgentId);
+                    return default;
+                }
+
+                var livingAgent = (AgentLiving*)playerAgent;
+                if (livingAgent->Level != gameContext.Pointer->World->Level)
+                {
+                    scopedLogger.LogError("Player agent not found. Player level mismatch: {level} != {gameLevel}", livingAgent->Level, gameContext.Pointer->World->Level);
+                    return default;
+                }
+
+                return new MainPlayerState(
+                    gameContext.Pointer->World->Experience,
+                    gameContext.Pointer->World->Level,
+
+                    gameContext.Pointer->World->CurrentLuxon,
+                    gameContext.Pointer->World->CurrentKurzick,
+                    gameContext.Pointer->World->CurrentImperial,
+                    gameContext.Pointer->World->CurrentBalth,
+                    gameContext.Pointer->World->MaxLuxon,
+                    gameContext.Pointer->World->MaxKurzick,
+                    gameContext.Pointer->World->MaxImperial,
+                    gameContext.Pointer->World->MaxBalth,
+                    gameContext.Pointer->World->TotalEarnedLuxon,
+                    gameContext.Pointer->World->TotalEarnedKurzick,
+                    gameContext.Pointer->World->TotalEarnedImperial,
+                    gameContext.Pointer->World->TotalEarnedBalth,
+
+                    // Energy and health are percentages of Max
+                    livingAgent->Hp * livingAgent->MaxHp,
+                    livingAgent->MaxHp,
+                    livingAgent->Energy * livingAgent->MaxEnergy,
+                    livingAgent->MaxEnergy,
+
+                    livingAgent->Tags->Primary,
+                    livingAgent->Tags->Secondary,
+
+                    playerAgent->Pos.X,
+                    playerAgent->Pos.Y
+                );
+            }
+        }, cancellationToken);
+    }
+
+    public Task<InstanceInfo> GetMainPlayerInstance(CancellationToken cancellationToken)
+    {
+        var scopedLogger = this.logger.CreateScopedLogger();
+        return this.gameThreadService.QueueOnGameThread(() =>
+        {
+            unsafe
+            {
+                var instanceType = this.instanceContextService.GetInstanceType();
+                if (instanceType is InstanceType.Loading)
+                {
+                    return new InstanceInfo(0, 0, 0, 0, Shared.Models.Api.InstanceType.Loading, DistrictRegionInfo.Unknown, LanguageInfo.Unknown, CampaignInfo.Unknown, ContinentInfo.Unknown, RegionInfo.Unknown, DifficultyInfo.Unknown);
+                }
+
+                var gameContext = this.gameContextService.GetGameContext();
+                var currentMapInfo = this.instanceContextService.GetAreaInfo();
+                var serverRegion = this.instanceContextService.GetServerRegion();
+                if (gameContext.IsNull ||
+                    gameContext.Pointer->Character is null ||
+                    gameContext.Pointer->World is null ||
+                    gameContext.Pointer->Party is 0 ||
+                    currentMapInfo.IsNull)
+                {
+                    scopedLogger.LogError("Game context is not initialized");
+                    return new InstanceInfo(0, 0, 0, 0, Shared.Models.Api.InstanceType.Loading, DistrictRegionInfo.Unknown, LanguageInfo.Unknown, CampaignInfo.Unknown, ContinentInfo.Unknown, RegionInfo.Unknown, DifficultyInfo.Unknown);
+                }
+
+                var charContext = *gameContext.Pointer->Character;
+                var worldContext = *gameContext.Pointer->World;
+                var mapInfo = *currentMapInfo.Pointer;
+                var mapId = charContext.MapId;
+                var language = charContext.Language;
+                var districtNumber = charContext.DistrictNumber;
+                var foesKilled = worldContext.FoesKilled;
+                var foesToKill = worldContext.FoesToKill;
+
+                return new InstanceInfo(
+                    MapId: (uint)charContext.MapId,
+                    DistrictNumber: charContext.DistrictNumber,
+                    FoesKilled: worldContext.FoesKilled,
+                    FoesToKill: worldContext.FoesToKill,
+                    Type: (Shared.Models.Api.InstanceType)instanceType,
+                    DistrictRegion: (DistrictRegionInfo)serverRegion,
+                    Language: (LanguageInfo)charContext.Language,
+                    Campaign: (CampaignInfo)mapInfo.Campaign,
+                    Continent: (ContinentInfo)mapInfo.Continent,
+                    Region: (RegionInfo)mapInfo.Region,
+                    Difficulty: GWCA.GW.PartyMgr.GetIsPartyInHardMode() ? DifficultyInfo.Hard : DifficultyInfo.Normal);
+            }
+        }, cancellationToken);
+    }
+
+    public Task<TitleInfo?> GetTitleInfo(CancellationToken cancellationToken)
+    {
+        var scopedLogger = this.logger.CreateScopedLogger();
+        return this.gameThreadService.QueueOnGameThread(() =>
+        {
+            unsafe
+            {
+                if (this.instanceContextService.GetInstanceType() is InstanceType.Loading)
+                {
+                    scopedLogger.LogError("Not loaded");
+                    return default;
+                }
+
+                var gameContext = this.gameContextService.GetGameContext();
+                if (gameContext.IsNull || gameContext.Pointer->World is null)
+                {
+                    scopedLogger.LogError("Game context is not initialized");
+                    return default;
+                }
+
+                var playerIndex = gameContext.Pointer->Character->PlayerNumber;
+                var player = GWCA.GW.PlayerMgr.GetPlayerByID(playerIndex);
+                if (player is null)
+                {
+                    scopedLogger.LogError("Failed to get player");
+                    return default;
+                }
+
+                var currentTier = player->ActiveTitleTier;
+                Title? currentTitle = default;
+                int? id = -1;
+                for (var i = 0; i < gameContext.Pointer->World->Titles.Value.Size; i++)
+                {
+                    var title = gameContext.Pointer->World->Titles.Value.Skip(i).FirstOrDefault();
+                    if (title.CurrentTitleTierIndex == currentTier)
+                    {
+                        currentTitle = title;
+                        id = i;
+                        break;
+                    }
+                }
+
+                if (!currentTitle.HasValue)
+                {
+                    scopedLogger.LogError("Failed to find current title with tier {currentTier}", currentTier);
+                    return default;
+                }
+
+                var titleTier = gameContext.Pointer->World->TitleTiers.Skip((int)currentTitle.Value.CurrentTitleTierIndex).FirstOrDefault();
+                return new TitleInfo
+                (
+                    Id: (uint)id,
+                    IsPercentage: currentTitle.Value.IsPercentageBased(),
+                    PointsForCurrentRank: currentTitle.Value.PointsNeededCurrentRank,
+                    PointsForNextRank: titleTier.TierNumber == currentTitle.Value.MaxTitleRank ?
+                                        currentTitle.Value.CurrentPoints :
+                                        currentTitle.Value.PointsNeededNextRank,
+                    CurrentPoints: currentTitle.Value.CurrentPoints,
+                    TierNumber: titleTier.TierNumber,
+                    MaxTierNumber: currentTitle.Value.MaxTitleTierIndex
+                );
+            }
+        }, cancellationToken);
+    }
+
+    public Task<MainPlayerBuildContext?> GetMainPlayerBuildContext(CancellationToken cancellationToken)
+    {
+        var scopedLogger = this.logger.CreateScopedLogger();
+        return this.gameThreadService.QueueOnGameThread(() =>
+        {
+            unsafe
+            {
+                if (this.instanceContextService.GetInstanceType() is InstanceType.Loading)
+                {
+                    scopedLogger.LogError("Not loaded");
+                    return default;
+                }
+
+                var gameContext = this.gameContextService.GetGameContext();
+                if (gameContext.IsNull ||
+                    gameContext.Pointer->Account is null ||
+                    gameContext.Pointer->World is null)
+                {
+                    this.logger.LogError("Game context is not initialized");
+                    return default;
+                }
+
+                var playerAgentId = this.agentContextService.GetPlayerAgentId();
+                if (playerAgentId is 0x0)
+                {
+                    scopedLogger.LogError("Failed to get player agent id");
+                    return default;
+                }
+
+                var agentProfession = gameContext.Pointer->World->PartyProfessionStates.AsValueEnumerable().FirstOrDefault(p => p.AgentId == playerAgentId);
+                if (agentProfession.AgentId != playerAgentId)
+                {
+                    scopedLogger.LogError("Failed to find agent profession for player agent id {agentId}", playerAgentId);
+                    return default;
+                }
+
+                return new MainPlayerBuildContext(
+                    PrimaryProfessionId: (uint)agentProfession.Primary,
+                    UnlockedProfessions: agentProfession.UnlockedProfessions,
+                    UnlockedCharacterSkills: gameContext.Pointer->World->UnlockedCharacterSkills.AsValueEnumerable().ToArray());
+
+            }
+        }, cancellationToken);
+    }
+}

Daybreak.API/Services/PartyService.cs

@@ -0,0 +1,510 @@
+using Daybreak.API.Extensions;
+using Daybreak.API.Interop;
+using Daybreak.API.Interop.GuildWars;
+using Daybreak.API.Models;
+using Daybreak.API.Services.Interop;
+using Daybreak.Shared.Models;
+using Daybreak.Shared.Models.Api;
+using Daybreak.Shared.Models.Guildwars;
+using Daybreak.Shared.Services.BuildTemplates;
+using System.Core.Extensions;
+using System.Extensions;
+using System.Extensions.Core;
+using System.Runtime.CompilerServices;
+using ZLinq;
+using InstanceType = Daybreak.API.Interop.GuildWars.InstanceType;
+
+namespace Daybreak.API.Services;
+
+public sealed class PartyService(
+    ChatService chatService,
+    IBuildTemplateManager buildTemplateManager,
+    UIService uiService,
+    UIContextService uIContextService,
+    SkillbarContextService skillbarContextService,
+    InstanceContextService instanceContextService,
+    PartyContextService partyContextService,
+    GameThreadService gameThreadService,
+    GameContextService gameContextService,
+    ILogger<PartyService> logger)
+{
+    private static readonly TimeSpan HeroSpawnDelay = TimeSpan.FromSeconds(1);
+
+    private readonly ChatService chatService = chatService.ThrowIfNull();
+    private readonly IBuildTemplateManager buildTemplateManager = buildTemplateManager.ThrowIfNull();
+    private readonly UIService uiService = uiService.ThrowIfNull();
+    private readonly UIContextService uIContextService = uIContextService.ThrowIfNull();
+    private readonly SkillbarContextService skillbarContextService = skillbarContextService.ThrowIfNull();
+    private readonly InstanceContextService instanceContextService = instanceContextService.ThrowIfNull();
+    private readonly PartyContextService partyContextService = partyContextService.ThrowIfNull();
+    private readonly GameThreadService gameThreadService = gameThreadService.ThrowIfNull();
+    private readonly GameContextService gameContextService = gameContextService.ThrowIfNull();
+    private readonly ILogger<PartyService> logger = logger.ThrowIfNull();
+
+    public async Task<bool> SetPartyLoadout(PartyLoadout partyLoadout, CancellationToken cancellationToken)
+    {
+        var scopedLogger = this.logger.CreateScopedLogger();
+        
+        if (!await this.IsInValidOutpost(cancellationToken))
+        {
+            scopedLogger.LogError("Could not set party loadout. Not in a valid outpost");
+            await this.chatService.AddMessageAsync("Cannot set party loadout. Not in a valid outpost.", "Daybreak.API", Channel.CHANNEL_MODERATOR, cancellationToken);
+            return false;
+        }
+
+        if (!await this.KickAllHeroes(cancellationToken))
+        {
+            scopedLogger.LogError("Could not set party loadout. Could not leave party");
+            await this.chatService.AddMessageAsync("Cannot set party loadout. Could not leave party.", "Daybreak.API", Channel.CHANNEL_MODERATOR, cancellationToken);
+            return false;
+        }
+
+        if (!await this.gameThreadService.QueueOnGameThread(() => this.SpawnHeroes(partyLoadout), cancellationToken))
+        {
+            scopedLogger.LogError("Could not set party loadout. Could not spawn heroes");
+            await this.chatService.AddMessageAsync("Cannot set party loadout. Could not spawn heroes.", "Daybreak.API", Channel.CHANNEL_MODERATOR, cancellationToken);
+            return false;
+        }
+
+        await Task.Delay(HeroSpawnDelay, cancellationToken);
+
+        if (!await this.gameThreadService.QueueOnGameThread(() => this.ApplyBuilds(partyLoadout), cancellationToken))
+        {
+            scopedLogger.LogError("Could not set party loadout. Could not apply builds");
+            await this.chatService.AddMessageAsync("Cannot set party loadout. Could not apply builds.", "Daybreak.API", Channel.CHANNEL_MODERATOR, cancellationToken);
+            return false;
+        }
+
+        var heroBehaviorSetup = await this.gameThreadService.QueueOnGameThread(() => this.GetHeroBehaviorSetup(partyLoadout), cancellationToken);
+        foreach (var (AgentId, Behavior) in heroBehaviorSetup ?? [])
+        {
+            if (!await this.SetHeroBehavior(AgentId, Behavior, cancellationToken))
+            {
+                scopedLogger.LogWarning("Could not set hero behavior for agent {agentId} to {behavior}", AgentId, Behavior);
+                await this.chatService.AddMessageAsync($"Cannot set party loadout. Could not set behavior {Behavior} for agent {AgentId}.", "Daybreak.API", Channel.CHANNEL_MODERATOR, cancellationToken);
+            }
+        }
+
+        await this.chatService.AddMessageAsync("Party loadout set.", "Daybreak.API", Channel.CHANNEL_MODERATOR, cancellationToken);
+        return true;
+    }
+
+    public Task<PartyLoadout?> GetPartyLoadout(CancellationToken cancellationToken)
+    {
+        var scopedLogger = this.logger.CreateScopedLogger();
+        return this.gameThreadService.QueueOnGameThread(() =>
+        {
+            unsafe
+            {
+                if (this.instanceContextService.GetInstanceType() is InstanceType.Loading or InstanceType.Explorable)
+                {
+                    scopedLogger.LogError("Not in outpost");
+                    return default;
+                }
+
+                if (!this.gameContextService.GetGameContext().TryGetBuildContext(out var skillbars, out var attributes, out var professions, out _))
+                {
+                    scopedLogger.LogError("Failed to get build context");
+                    return default;
+                }
+
+                if (!this.gameContextService.GetGameContext().TryGetHeroFlags(out var heroFlags))
+                {
+                    scopedLogger.LogError("Failed to get hero flags");
+                    return default;
+                }
+
+                if (!this.gameContextService.GetGameContext().TryGetPlayerId(out var playerId))
+                {
+                    scopedLogger.LogError("Failed to get player id");
+                    return default;
+                }
+
+                if (!this.gameContextService.GetGameContext().TryGetPlayerParty(out _, out _, out var heroes, out _))
+                {
+                    scopedLogger.LogError("Failed to get player party");
+                    return default;
+                }
+
+                var buildTuples = professions.Value.AsValueEnumerable()
+                    .Select(p => (p.AgentId, p, attributes.Value.FirstOrDefault(a => a.AgentId == p.AgentId), skillbars.Value.FirstOrDefault(s => s.AgentId == p.AgentId), heroFlags.Value.FirstOrDefault(f => f.AgentId == p.AgentId)))
+                    .Select(t => (t.AgentId, GetBuildEntryById(t.p, t.Item4, t.Item3), t.Item5.HeroBehavior))
+                    .Where(t => t.Item2 is not null)
+                    .OfType<(uint AgentId, BuildEntry BuildEntry, API.Interop.GWCA.GW.HeroBehavior Behavior)>()
+                    .ToList();
+
+                return new PartyLoadout(
+                    [.. buildTuples.Select(t =>
+                    {
+                        if (t.AgentId == playerId)
+                        {
+                            return new PartyLoadoutEntry(0, Shared.Models.Api.HeroBehavior.Undefined, t.BuildEntry);
+                        }
+                        else if (heroes.Value.FirstOrDefault(h => h.AgentId == t.AgentId) is HeroPartyMember hero &&
+                                hero.AgentId == t.AgentId)
+                        {
+                            return new PartyLoadoutEntry((int)hero.HeroId, (Shared.Models.Api.HeroBehavior)t.Behavior, t.BuildEntry);
+                        }
+
+                        return default;
+                    })
+                    .Where(t => t is not null)
+                    .OfType<PartyLoadoutEntry>()]);
+            }
+        }, cancellationToken);
+    }
+
+    public async Task<bool> KickAllHeroes(CancellationToken cancellationToken)
+    {
+        var partySize = await this.GetPartySize(cancellationToken);
+        if (partySize is 1 or 0)
+        {
+            return true;
+        }
+
+        return await this.gameThreadService.QueueOnGameThread(this.partyContextService.KickAllHeroes, cancellationToken);
+    }
+
+    public async Task<uint> GetPartySize(CancellationToken cancellationToken)
+    {
+        return await this.gameThreadService.QueueOnGameThread<uint>(() =>
+        {
+            unsafe
+            {
+                if (!this.gameContextService.GetGameContext().TryGetPlayerParty(out _, out var players, out var heroes, out var henchmen))
+                {
+                    this.logger.LogError("Failed to get player party");
+                    return 0;
+                }
+
+                return players.Value.Size + heroes.Value.Size + heroes.Value.Size;
+            }
+        }, cancellationToken);
+    }
+
+    public async Task<bool> SetHeroBehavior(uint heroAgentId, Shared.Models.Api.HeroBehavior behavior, CancellationToken cancellationToken)
+    {
+        var scopedLogger = this.logger.CreateScopedLogger();
+
+        if (!await this.IsInValidOutpost(cancellationToken))
+        {
+            scopedLogger.LogError("Could not set hero behavior. Not in a valid outpost");
+            return false;
+        }
+
+        var heroCommanderFrameLabel = await this.HeroCommanderFrameLabel(heroAgentId, cancellationToken);
+        if (heroCommanderFrameLabel is null)
+        {
+            scopedLogger.LogError("Could not set hero behavior. Could not find hero commander frame label for agent {heroAgentId}", heroAgentId);
+            return false;
+        }
+
+        var maybeFrame = await this.uiService.GetManagedFrame(heroCommanderFrameLabel, cancellationToken);
+        if (!maybeFrame.HasValue)
+        {
+            scopedLogger.LogError("Could not set hero behavior. Could not get managed frame for label {heroCommanderFrameLabel}", heroCommanderFrameLabel);
+            return false;
+        }
+
+        using var frame = maybeFrame.Value;
+        var result = await this.gameThreadService.QueueOnGameThread(() =>
+        {
+            unsafe
+            {
+                var btn = this.uIContextService.GetChildFrame(frame.Frame, (uint)behavior);
+                var packet = new kMouseClick { MouseButton = 0, IsDoubleclick = 0 };
+                if (btn.IsNull)
+                {
+                    scopedLogger.LogError("Could not set hero behavior. Could not find button for behavior {behavior} in frame {frameLabel}", behavior, heroCommanderFrameLabel);
+                    return false;
+                }
+
+                return this.uIContextService.SendFrameUIMessage(btn, UIMessage.kMouseClick, &packet);
+            }
+        }, cancellationToken);
+
+        if (!result)
+        {
+            scopedLogger.LogError("Failed to send UI message to set hero behavior {behavior} for agent {heroAgentId}", behavior, heroAgentId);
+        }
+
+        scopedLogger.LogInformation("Set hero behavior {behavior} for agent {agentId}", behavior, heroAgentId);
+        return result;
+    }
+
+    private async Task<bool> IsInValidOutpost(CancellationToken cancellationToken)
+    {
+        return await this.gameThreadService.QueueOnGameThread(() =>
+        {
+            return this.instanceContextService.GetInstanceType() is InstanceType.Outpost;
+        }, cancellationToken);
+    }
+
+    private unsafe bool SpawnHeroes(PartyLoadout partyLoadout)
+    {
+        var scopedLogger = this.logger.CreateScopedLogger();
+        scopedLogger.LogDebug("Spawning {heroCount} heroes for party loadout", partyLoadout.Entries.AsValueEnumerable().Count(c => c.HeroId != 0));
+        foreach (var entry in partyLoadout.Entries.AsValueEnumerable().OrderBy(e => e.Build.Primary))
+        {
+            if (entry.HeroId != 0 &&
+                Hero.TryParse(entry.HeroId, out var hero))
+            {
+                scopedLogger.LogInformation("Adding hero [{heroId}] [{heroName}] with behavior {behavior}", entry.HeroId, hero.Name, entry.HeroBehavior);
+                this.partyContextService.AddHero((uint)entry.HeroId);
+            }
+            else
+            {
+                scopedLogger.LogWarning("Invalid hero entry in party loadout: {heroId}", entry.HeroId);
+                continue;
+            }
+        }
+
+        return true;
+    }
+
+    private unsafe bool ApplyBuilds(PartyLoadout partyLoadout)
+    {
+        var scopedLogger = this.logger.CreateScopedLogger();
+        scopedLogger.LogDebug("Applying builds");
+
+        if (!this.gameContextService.GetGameContext().TryGetPlayerParty(out _, out var players, out var heroes, out var henchmen))
+        {
+            scopedLogger.LogError("Failed to get player party");
+            return false;
+        }
+
+        if (!this.gameContextService.GetGameContext().TryGetBuildContext(out _, out _, out var professions, out var unlockedSkills))
+        {
+            scopedLogger.LogError("Failed to get build context");
+            return false;
+        }
+
+        if (!this.gameContextService.GetGameContext().TryGetPlayerId(out var playerId))
+        {
+            scopedLogger.LogError("Failed to get player id");
+            return false;
+        }
+
+        if (!this.gameContextService.GetGameContext().TryGetAccountContext(out var accountContext) ||
+            accountContext.IsNull)
+        {
+            scopedLogger.LogError("Failed to get account context");
+            return false;
+        }
+
+        var playerProfessionContext = professions.Value.AsValueEnumerable().FirstOrDefault(p => p.AgentId == playerId);
+        if (playerProfessionContext.AgentId != playerId)
+        {
+            scopedLogger.LogError("Failed to get player profession context for player id {playerId}", playerId);
+            return false;
+        }
+
+        var parsedEntries = partyLoadout.Entries.AsValueEnumerable()
+            .Select(entry =>
+            {
+                if (entry.HeroId is 0)
+                {
+                    return (entry, playerId);
+                }
+                else
+                {
+                    var hero = heroes.Value.AsValueEnumerable().FirstOrDefault(h => (int)h.HeroId == entry.HeroId);
+                    return (entry, hero.AgentId);
+                }
+            })
+            .Select(t => (t.entry, t.playerId, professions.Value.AsValueEnumerable().FirstOrDefault(p => p.AgentId == t.playerId)))
+            .Select(t =>
+            {
+                var validSkills = t.playerId == playerId
+                    ? unlockedSkills
+                    : accountContext.Pointer->UnlockedAccountSkills;
+
+                var unlockedProfessionsFlags = t.playerId == playerId
+                    ? playerProfessionContext.UnlockedProfessions
+                    : uint.MaxValue;
+
+                if (!this.buildTemplateManager.CanTemplateApply(
+                    new BuildTemplateValidationRequest(
+                        (uint)t.entry.Build.Primary,
+                        (uint)t.entry.Build.Secondary,
+                        [.. t.entry.Build.Skills],
+                        (uint)t.Item3.Primary,
+                        unlockedProfessionsFlags,
+                        [.. validSkills])))
+                {
+                    return (t.entry, t.playerId, t.Item3, false);
+                }
+
+                return (t.entry, t.playerId, t.Item3, true);
+            })
+            .Where(t =>
+            {
+                if (!t.Item4)
+                {
+                    if (t.entry.HeroId is 0)
+                    {
+                        scopedLogger.LogError("Cannot apply build for player");
+                    }
+                    else
+                    {
+                        scopedLogger.LogError("Cannot apply build for hero {heroId}", t.entry.HeroId);
+                    }
+                }
+
+                return t.Item4;
+            });
+
+        foreach (var (entry, maybeAgentId, _, _) in parsedEntries)
+        {
+            if (maybeAgentId is not uint agentId)
+            {
+                continue;
+            }
+
+            var attributeIds = new AttributeArray12();
+            var attributeValues = new Array12Uint();
+            for (var i = 0; i < entry.Build.Attributes.Count && i < 12; i++)
+            {
+                attributeIds[i] = (GWCA.GW.Constants.Attribute)entry.Build.Attributes[i].Id;
+                attributeValues[i] = (uint)entry.Build.Attributes[i].BasePoints;
+            }
+
+            var skills = new SkillIDArray8();
+            for (var i = 0; i < entry.Build.Skills.Count && i < 8; i++)
+            {
+                skills[i] = (GWCA.GW.Constants.SkillID)entry.Build.Skills[i];
+            }
+
+            var skillTemplate = new SkillTemplate
+            {
+                Primary = (GWCA.GW.Constants.Profession)entry.Build.Primary,
+                Secondary = (GWCA.GW.Constants.Profession)entry.Build.Secondary,
+                AttributesCount = (uint)entry.Build.Attributes.Count,
+                AttributeIds = attributeIds,
+                Skills = skills
+            };
+            Unsafe.CopyBlock(skillTemplate.AttributeValues, Unsafe.AsPointer(ref attributeValues), (uint)(12 * sizeof(uint)));
+            scopedLogger.LogInformation("Applying build for agent {agentId} with primary {primary} and secondary {secondary}", agentId, entry.Build.Primary, entry.Build.Secondary);
+            this.skillbarContextService.LoadBuild(agentId, &skillTemplate);
+        }
+
+        return true;
+    }
+
+    private unsafe List<(uint AgentId, Shared.Models.Api.HeroBehavior Behavior)>? GetHeroBehaviorSetup(PartyLoadout partyLoadout)
+    {
+        var scopedLogger = this.logger.CreateScopedLogger();
+        scopedLogger.LogDebug("Getting hero behavior setup");
+        
+        if (!this.gameContextService.GetGameContext().TryGetPlayerParty(out _, out _, out var heroes, out _) ||
+            !heroes.HasValue)
+        {
+            scopedLogger.LogError("Failed to get player party");
+            return default;
+        }
+
+        return heroes.Value.AsValueEnumerable()
+            .Select(h =>
+            {
+                if (h.HeroId is API.Interop.GWCA.GW.Constants.HeroID.NoHero)
+                {
+                    return default;
+                }
+
+                var entry = partyLoadout.Entries.AsValueEnumerable().FirstOrDefault(e => e.HeroId == (int)h.HeroId);
+                if (entry is null)
+                {
+                    scopedLogger.LogWarning("No entry found for hero {heroId}", h.HeroId);
+                    return default;
+                }
+
+                return (h.AgentId, entry.HeroBehavior);
+            })
+            .Where(t => t.AgentId is not 0)
+            .ToList();
+    }
+
+    private async Task<string?> HeroCommanderFrameLabel(uint heroAgentId, CancellationToken cancellationToken)
+    {
+        var heroOffset = await this.GetHeroNumber(heroAgentId, cancellationToken);
+        if (heroOffset > 6)
+        {
+            return default;
+        }
+
+        return heroOffset switch
+        {
+            0 => "AgentCommander0",
+            1 => "AgentCommander1",
+            2 => "AgentCommander2",
+            3 => "AgentCommander3",
+            4 => "AgentCommander4",
+            5 => "AgentCommander5",
+            6 => "AgentCommander6",
+            _ => default
+        };
+    }
+
+    private async Task<uint?> GetHeroNumber(uint agentId, CancellationToken cancellationToken)
+    {
+        var scopedLogger = this.logger.CreateScopedLogger();
+        var heroNumber = await this.gameThreadService.QueueOnGameThread(() =>
+        {
+            unsafe
+            {
+                var gameContext = this.gameContextService.GetGameContext();
+                if (gameContext.IsNull)
+                {
+                    scopedLogger.LogError("Game context is null");
+                    return -1;
+                }
+
+                var charContext = gameContext.Pointer->Character;
+                if (charContext is null)
+                {
+                    scopedLogger.LogError("Char context is null");
+                    return -1;
+                }
+
+                var playerParty = GWCA.GW.PartyMgr.GetPartyInfo(0);
+                var playerId = charContext->PlayerNumber;
+                var offset = 0;
+                foreach(var hero in playerParty->Heroes)
+                {
+                    if (hero.OwnerPlayerId == playerId)
+                    {
+                        if (hero.AgentId == agentId)
+                        {
+                            return offset;
+                        }
+
+                        offset++;
+                    }
+                }
+
+                return -1;
+            }
+        }, cancellationToken);
+
+        return heroNumber is -1 ? default : (uint)heroNumber;
+    }
+
+    private static BuildEntry? GetBuildEntryById(ProfessionState professionContext, SkillbarData skillbar, PartyAttribute attributes)
+    {
+        return new BuildEntry(
+            Primary: (int)professionContext.Primary,
+            Secondary: (int)professionContext.Secondary,
+            Attributes: attributes.Attribute.GetAttributeEntryList().ToList(),
+            Skills:
+            [
+                (uint)skillbar.Skills[0].SkillId,
+                (uint)skillbar.Skills[1].SkillId,
+                (uint)skillbar.Skills[2].SkillId,
+                (uint)skillbar.Skills[3].SkillId,
+                (uint)skillbar.Skills[4].SkillId,
+                (uint)skillbar.Skills[5].SkillId,
+                (uint)skillbar.Skills[6].SkillId,
+                (uint)skillbar.Skills[7].SkillId
+            ]);
+    }
+}

Daybreak.API/Services/UIService.cs

@@ -0,0 +1,108 @@
+using Daybreak.API.Interop;
+using Daybreak.API.Interop.GuildWars;
+using Daybreak.API.Services.Interop;
+using System.Extensions.Core;
+
+namespace Daybreak.API.Services;
+
+public sealed class UIService(
+    GameThreadService gameThreadService,
+    UIContextService uIContextService,
+    ILogger<UIService> logger)
+{
+    private readonly GameThreadService gameThreadService = gameThreadService;
+    private readonly UIContextService uIContextService = uIContextService;
+    private readonly ILogger<UIService> logger = logger;
+
+    public async Task<bool> Keypress(ControlAction action, WrappedPointer<Frame> frame, CancellationToken cancellationToken)
+    {
+        var scopedLogger = this.logger.CreateScopedLogger();
+        var keyDownResult = await this.gameThreadService.QueueOnGameThread(() =>
+        {
+            if (!this.uIContextService.KeyDown((GWCA.GW.UI.ControlAction)action, frame))
+            {
+                scopedLogger.LogError("Failed to send keydown action {action}", action);
+                return false;
+            }
+
+            return true;
+        }, cancellationToken);
+
+        if (!keyDownResult)
+        {
+            return false;
+        }
+
+        var keyUpResult = await this.gameThreadService.QueueOnGameThread(() =>
+        {
+            if (!this.uIContextService.KeyUp((GWCA.GW.UI.ControlAction)action, frame))
+            {
+                scopedLogger.LogError("Failed to send keyup action {action}", action);
+                return false;
+            }
+
+            return true;
+        }, cancellationToken);
+
+        if (!keyUpResult)
+        {
+            return false;
+        }
+
+        return true;
+    }
+
+    public async Task<ManagedFrame?> GetManagedFrame(string label, CancellationToken cancellationToken)
+    {
+        var scopedLogger = this.logger.CreateScopedLogger();
+        if (string.IsNullOrEmpty(label))
+        {
+            scopedLogger.LogError("Frame label is null or empty");
+            return null;
+        }
+
+        var frame = await this.gameThreadService.QueueOnGameThread(() => this.uIContextService.GetFrameByLabel(label), cancellationToken);
+        if (!frame.IsNull)
+        {
+            // Frame was already open, we do not want to auto-close it
+            scopedLogger.LogInformation("Frame with label {label} is already open", label);
+            return new ManagedFrame(frame, () => { });
+        }
+
+        var uiAction = GetUIActionFromFrameLabel(label);
+        await this.Keypress(uiAction, null, cancellationToken);
+        frame = await this.gameThreadService.QueueOnGameThread(() => this.uIContextService.GetFrameByLabel(label), cancellationToken);
+        await this.gameThreadService.QueueOnGameThread(() => this.uIContextService.SetFrameVisible(frame, true), cancellationToken);
+        return new ManagedFrame(frame, async () =>
+        {
+            await this.gameThreadService.QueueOnGameThread(async () =>
+            {
+                if (!this.uIContextService.GetFrameByLabel(label).IsNull)
+                {
+                    await this.Keypress(uiAction, null, CancellationToken.None);
+                }
+            }, CancellationToken.None);
+        });
+    }
+
+    public async Task<string?> DecodeString(string encoded, GWCA.GW.Constants.Language language, CancellationToken cancellationToken)
+    {
+        // GWCA's AsyncDecodeStr handles language switching internally (sets language, decodes, restores)
+        return await this.uIContextService.AsyncDecodeStringAsync(encoded, language, cancellationToken);
+    }
+
+    private static ControlAction GetUIActionFromFrameLabel(string frameLabel)
+    {
+        return frameLabel switch
+        {
+            "AgentCommander0" => ControlAction.ControlAction_OpenHeroCommander1,
+            "AgentCommander1" => ControlAction.ControlAction_OpenHeroCommander2,
+            "AgentCommander2" => ControlAction.ControlAction_OpenHeroCommander3,
+            "AgentCommander3" => ControlAction.ControlAction_OpenHeroCommander4,
+            "AgentCommander4" => ControlAction.ControlAction_OpenHeroCommander5,
+            "AgentCommander5" => ControlAction.ControlAction_OpenHeroCommander6,
+            "AgentCommander6" => ControlAction.ControlAction_OpenHeroCommander7,
+            _ => ControlAction.ControlAction_None
+        };
+    }
+}

Daybreak.API/Services/WebApplicationBuilderExtensions.cs

@@ -0,0 +1,34 @@
+using Daybreak.API.Services.Interop;
+using Daybreak.Shared.Services.BuildTemplates;
+using Daybreak.Shared.Services.BuildTemplates.Parsers;
+
+namespace Daybreak.API.Services;
+
+public static class WebApplicationBuilderExtensions
+{
+    public static WebApplicationBuilder WithDaybreakServices(this WebApplicationBuilder builder)
+    {
+        builder.Services.AddSingleton<ITemplateParser, LegacySkillTemplateParser>();
+        builder.Services.AddSingleton<ITemplateParser, SkillTemplateParser>();
+        builder.Services.AddSingleton<ITemplateParser, PartyLoadoutTemplateParser>();
+        builder.Services.AddSingleton<IBuildTemplateManager, BuildTemplateManager>();
+        builder.Services.AddSingleton<MemoryScanningService>();
+        builder.Services.AddSingleton<ChatService>();
+        builder.Services.AddSingleton<MainPlayerService>();
+        builder.Services.AddSingleton<CharacterSelectService>();
+        builder.Services.AddSingleton<PartyService>();
+        builder.Services.AddSingleton<UIService>();
+        builder.Services.AddSingleton<LoginService>();
+        builder.Services.AddSingleton<InventoryService>();
+        builder.Services.AddSingleton<GameThreadService>();
+        builder.Services.AddSingleton<SkillbarContextService>();
+        builder.Services.AddSingleton<GameContextService>();
+        builder.Services.AddSingleton<InstanceContextService>();
+        builder.Services.AddSingleton<AgentContextService>();
+        builder.Services.AddSingleton<PlatformContextService>();
+        builder.Services.AddSingleton<PartyContextService>();
+        builder.Services.AddSingleton<PreferencesService>();
+        builder.Services.AddSingleton<UIContextService>();
+        return builder;
+    }
+}

Daybreak.API/Swagger/WebApplicationBuilderExtensions.cs

@@ -0,0 +1,18 @@
+using Microsoft.AspNetCore.Routing.Constraints;
+
+namespace Daybreak.API.Swagger;
+
+public static class WebApplicationBuilderExtensions
+{
+    public static WebApplicationBuilder WithSwagger(this WebApplicationBuilder builder)
+    {
+        builder.Services.AddEndpointsApiExplorer();
+        builder.Services.Configure<RouteOptions>(static options =>
+        {
+            options.SetParameterPolicy<RegexInlineRouteConstraint>("regex");
+        });
+        builder.Services.AddOpenApi();
+
+        return builder;
+    }
+}

Daybreak.API/Swagger/WebApplicationExtensions.cs

@@ -0,0 +1,13 @@
+using Scalar.AspNetCore;
+
+namespace Daybreak.API.Swagger;
+
+public static class WebApplicationExtensions
+{
+    public static WebApplication UseSwaggerWithUI(this WebApplication app)
+    {
+        app.MapOpenApi();
+        app.MapScalarApiReference();
+        return app;
+    }
+}

Daybreak.API/WebSockets/UpdateWebSocketRoute.cs

@@ -0,0 +1,46 @@
+using Net.Sdk.Web.Websockets;
+using System.Buffers;
+using System.Net.WebSockets;
+
+namespace Daybreak.API.WebSockets;
+
+public abstract class UpdateWebSocketRoute
+    : WebSocketRouteBase
+{
+    private readonly byte[] sharedBuffer;
+    private readonly ArraySegment<byte> packetBuffer;
+    private int sendingOperations = 0;
+
+    protected abstract int BufferSize { get; }
+
+    public UpdateWebSocketRoute()
+    {
+        this.sharedBuffer = ArrayPool<byte>.Shared.Rent(this.BufferSize);
+        this.packetBuffer = new ArraySegment<byte>(this.sharedBuffer);
+    }
+
+    public override Task SocketClosed()
+    {
+        ArrayPool<byte>.Shared.Return(this.sharedBuffer);
+        return base.SocketClosed();
+    }
+
+    public void SendUpdate(ReadOnlySpan<byte> state)
+    {
+        if (Interlocked.CompareExchange(ref this.sendingOperations, 1, 0) != 0)
+        {
+            return;
+        }
+
+        if (this.WebSocket is null)
+        {
+            this.sendingOperations = 0;
+            return;
+        }
+
+        state.CopyTo(this.packetBuffer);
+        var packet = this.packetBuffer.Slice(0, state.Length);
+        this.WebSocket?.SendAsync(packet, WebSocketMessageType.Binary, true, this.Context?.RequestAborted ?? CancellationToken.None)
+            .ContinueWith(_ => this.sendingOperations = 0);
+    }
+}

Daybreak.API/WebSockets/WebApplicationBuilderExtensions.cs

@@ -0,0 +1,9 @@
+namespace Daybreak.API.WebSockets;
+
+public static class WebApplicationBuilderExtensions
+{
+    public static WebApplicationBuilder WithWebSocketRoutes(this WebApplicationBuilder builder)
+    {
+        return builder;
+    }
+}

Daybreak.API/WebSockets/WebApplicationExtensions.cs

@@ -0,0 +1,13 @@
+using System.Diagnostics.CodeAnalysis;
+
+namespace Daybreak.API.WebSockets;
+
+public static class WebApplicationExtensions
+{
+    [UnconditionalSuppressMessage("Trimming", "IL2026:Members annotated with 'RequiresUnreferencedCodeAttribute' require dynamic access otherwise can break functionality when trimming application code")]
+    [UnconditionalSuppressMessage("AOT", "IL3050:Calling members annotated with 'RequiresDynamicCodeAttribute' may break functionality when AOT compiling.")]
+    public static WebApplication UseWebSocketRoutes(this WebApplication app)
+    {
+        return app;
+    }
+}

Daybreak.API/rd.xml

@@ -0,0 +1,7 @@
+<Directives>
+  <Application>
+    <Assembly Name="Microsoft.Extensions.Primitives">
+      <Type Name="Microsoft.Extensions.Primitives.StringValues" Dynamic="Required All" />
+    </Assembly>
+  </Application>
+</Directives>

Daybreak.Core/Attributes/DaybreakThemeOptionsAttribute.cs

@@ -0,0 +1,11 @@
+using Daybreak.Shared.Attributes;
+using Daybreak.Shared.Models.Themes;
+
+namespace Daybreak.Attributes;
+public sealed class DaybreakThemeOptionsAttribute : OptionValuesFactoryAttribute
+{
+    public override List<object> ValuesFactory()
+    {
+        return [.. Theme.Themes.Cast<object>()];
+    }
+}

Daybreak.Core/Configuration/Options/AscalonTradeChatOptions.cs

@@ -0,0 +1,14 @@
+using Daybreak.Shared.Attributes;
+using Daybreak.Shared.Configuration.Options;
+
+namespace Daybreak.Configuration.Options;
+
+[OptionsName(Name = "Ascalon Trade Chat")]
+[OptionsIgnore]
+[OptionsSynchronizationIgnore]
+public sealed class AscalonTradeChatOptions : ITradeChatOptions
+{
+    public string HttpsUri { get; set; } = "https://ascalon.gwtoolbox.com/";
+
+    public string WssUri { get; set; } = "wss://ascalon.gwtoolbox.com/";
+}

Daybreak.Core/Configuration/Options/CredentialManagerOptions.cs

@@ -0,0 +1,13 @@
+using Daybreak.Shared.Attributes;
+using Daybreak.Shared.Models;
+using System.Text.Json.Serialization;
+
+namespace Daybreak.Configuration.Options;
+
+[OptionsIgnore]
+[OptionsName(Name = "Credentials")]
+internal sealed class CredentialManagerOptions
+{
+    [JsonPropertyName(nameof(ProtectedLoginCredentials))]
+    public List<ProtectedLoginCredentials> ProtectedLoginCredentials { get; set; } = [];
+}

Daybreak.Core/Configuration/Options/DSOALOptions.cs

@@ -0,0 +1,13 @@
+using Daybreak.Shared.Attributes;
+using System.Text.Json.Serialization;
+
+namespace Daybreak.Configuration.Options;
+
+[OptionsName(Name = "DSOAL")]
+[OptionsIgnore]
+internal sealed class DSOALOptions
+{
+    [JsonPropertyName(nameof(Enabled))]
+    [OptionName(Name = "Enabled", Description = "If true, the launcher will also launch DSOAL when launching GuildWars")]
+    public bool Enabled { get; set; }
+}