chore(windows): Azure Trusted Signing + fix low-res icon

.github/workflows/release.yml

@@ -123,9 +123,22 @@ jobs:
             libdbus-1-dev \
             libssl-dev
 
+      - name: Install Azure Trusted Signing dlib
+        if: runner.os == 'Windows'
+        shell: pwsh
+        run: |
+          dotnet tool install --global AzureSignTool
+          nuget install Microsoft.Trusted.Signing.Client -Version 1.0.60 -OutputDirectory "${{ runner.temp }}\TrustedSigning"
+          $dlib = (Get-ChildItem -Path "${{ runner.temp }}\TrustedSigning" -Recurse -Filter "Azure.CodeSigning.Dlib.dll" | Where-Object { $_.DirectoryName -like "*x64*" }).FullName
+          echo "DLIB_PATH=$dlib" >> $env:GITHUB_ENV
+
       - uses: tauri-apps/tauri-action@f650639e43adf15f35dd1023d248b3ecc3568b64 # action-v0.6.1
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          # Azure Trusted Signing (Windows)
+          AZURE_TENANT_ID: ${{ secrets.AZURE_TENANT_ID }}
+          AZURE_CLIENT_ID: ${{ secrets.AZURE_CLIENT_ID }}
+          AZURE_CLIENT_SECRET: ${{ secrets.AZURE_CLIENT_SECRET }}
           # macOS code signing — tauri-action skips signing when these are empty.
           # To enable: add Apple Developer secrets in GitHub repo settings.
           # APPLE_CERTIFICATE: ${{ secrets.APPLE_CERTIFICATE }}
@@ -140,4 +153,4 @@ jobs:
           releaseBody: "See the assets to download this version and install ThreatForge."
           releaseDraft: true
           prerelease: false
-          args: ${{ matrix.settings.args }}
+          args: ${{ matrix.settings.args }} ${{ runner.os == 'Windows' && '--config src-tauri/tauri.signing.conf.json' || '' }}

scripts/sign-windows.ps1

@@ -0,0 +1,30 @@
+# Windows code signing via Azure Trusted Signing
+# Called by Tauri during build — receives file path as the last argument
+param(
+    [Parameter(Mandatory=$true, Position=0)]
+    [string]$FilePath
+)
+
+$dlibPath = $env:DLIB_PATH
+$metadataPath = Join-Path $PSScriptRoot ".." "src-tauri" "trusted-signing-metadata.json"
+
+if (-not $dlibPath) {
+    Write-Error "DLIB_PATH environment variable not set"
+    exit 1
+}
+
+if (-not (Test-Path $dlibPath)) {
+    Write-Error "Azure.CodeSigning.Dlib.dll not found at: $dlibPath"
+    exit 1
+}
+
+Write-Host "Signing: $FilePath"
+
+& signtool sign /v /fd SHA256 /tr "http://timestamp.acs.microsoft.com" /td SHA256 /dlib "$dlibPath" /dmdf "$metadataPath" "$FilePath"
+
+if ($LASTEXITCODE -ne 0) {
+    Write-Error "Signing failed for: $FilePath"
+    exit 1
+}
+
+Write-Host "Signed successfully: $FilePath"

src-tauri/tauri.signing.conf.json

@@ -0,0 +1,8 @@
+{
+	"$schema": "https://schema.tauri.app/config/2",
+	"bundle": {
+		"windows": {
+			"signCommand": "powershell -ExecutionPolicy Bypass -File \"scripts\\sign-windows.ps1\""
+		}
+	}
+}

src-tauri/trusted-signing-metadata.json

@@ -0,0 +1,5 @@
+{
+	"Endpoint": "https://eus.codesigning.azure.net/",
+	"CodeSigningAccountName": "threatforge-signing",
+	"CertificateProfileName": "threatforge-public"
+}