Add tests and implement StubBearer authentication for Signer endpoints

- Created SignerEndpointsTests to validate the SignDsse and VerifyReferrers endpoints.
- Implemented StubBearerAuthenticationDefaults and StubBearerAuthenticationHandler for token-based authentication.
- Developed ConcelierExporterClient for managing Trivy DB settings and export operations.
- Added TrivyDbSettingsPageComponent for UI interactions with Trivy DB settings, including form handling and export triggering.
- Implemented styles and HTML structure for Trivy DB settings page.
- Created NotifySmokeCheck tool for validating Redis event streams and Notify deliveries.

.gitea/workflows/build-test-deploy.yml

@@ -539,9 +539,53 @@ PY
           echo "   Service path: ${{ steps.params.outputs.path || '(skipped)' }}"
           echo "   Docs path: ${{ steps.params.outputs['docs-path'] || '(skipped)' }}"
 
-      - name: Deployment skipped summary
-        if: steps.check-deploy.outputs.should-deploy != 'true'
-        run: |
-          echo "ℹ️ Deployment stage skipped"
-          echo "   Event: ${{ github.event_name }}"
-          echo "   Ref: ${{ github.ref }}"
+      - name: Deployment skipped summary
+        if: steps.check-deploy.outputs.should-deploy != 'true'
+        run: |
+          echo "ℹ️ Deployment stage skipped"
+          echo "   Event: ${{ github.event_name }}"
+          echo "   Ref: ${{ github.ref }}"
+
+  notify-smoke:
+    runs-on: ubuntu-22.04
+    needs: deploy
+    if: needs.deploy.result == 'success'
+    env:
+      DOTNET_VERSION: ${{ env.DOTNET_VERSION }}
+      NOTIFY_SMOKE_REDIS_DSN: ${{ secrets.NOTIFY_SMOKE_REDIS_DSN }}
+      NOTIFY_SMOKE_NOTIFY_BASEURL: ${{ secrets.NOTIFY_SMOKE_NOTIFY_BASEURL }}
+      NOTIFY_SMOKE_NOTIFY_TOKEN: ${{ secrets.NOTIFY_SMOKE_NOTIFY_TOKEN }}
+      NOTIFY_SMOKE_NOTIFY_TENANT: ${{ secrets.NOTIFY_SMOKE_NOTIFY_TENANT }}
+      NOTIFY_SMOKE_NOTIFY_TENANT_HEADER: ${{ secrets.NOTIFY_SMOKE_NOTIFY_TENANT_HEADER }}
+      NOTIFY_SMOKE_EXPECT_KINDS: ${{ vars.NOTIFY_SMOKE_EXPECT_KINDS || secrets.NOTIFY_SMOKE_EXPECT_KINDS }}
+      NOTIFY_SMOKE_LOOKBACK_MINUTES: ${{ vars.NOTIFY_SMOKE_LOOKBACK_MINUTES || secrets.NOTIFY_SMOKE_LOOKBACK_MINUTES }}
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Setup .NET ${{ env.DOTNET_VERSION }}
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: ${{ env.DOTNET_VERSION }}
+          include-prerelease: true
+
+      - name: Validate Notify smoke configuration
+        run: |
+          missing=()
+          for name in NOTIFY_SMOKE_REDIS_DSN NOTIFY_SMOKE_NOTIFY_BASEURL NOTIFY_SMOKE_NOTIFY_TOKEN NOTIFY_SMOKE_NOTIFY_TENANT NOTIFY_SMOKE_EXPECT_KINDS NOTIFY_SMOKE_LOOKBACK_MINUTES
+          do
+            value="${!name}"
+            if [ -z "$value" ]; then
+              missing+=("$name")
+            fi
+          done
+          if [ ${#missing[@]} -gt 0 ]; then
+            echo "❌ Missing Notify smoke configuration: ${missing[*]}"
+            exit 1
+          fi
+
+      - name: Restore Notify smoke checker
+        run: dotnet restore tools/NotifySmokeCheck/NotifySmokeCheck.csproj
+
+      - name: Run Notify smoke validation
+        run: dotnet run --project tools/NotifySmokeCheck/NotifySmokeCheck.csproj --configuration Release