Merge pull request #56: ci: add Trivy security scanning (SAST/SCA) to pipeline

- Trivy fs scan (vuln, misconfig, secret) with lock file verification
- Trivy image scan before deploy
- SecurityCodeScan deep SAST via Roslyn analyzers
- NuGet vulnerability audit via dotnet list package
- C# code style linting via dotnet format

.gitea/workflows/deploy.yml

@@ -51,9 +51,34 @@ jobs:
           docker push git.codeanddice.ru/toutsu/gmrelay-web:latest
           docker push git.codeanddice.ru/toutsu/gmrelay-web:${{ env.VERSION }}
 
+  # ЧАСТЬ 1.5: Сканируем собранные образы на уязвимости
+  scan-images:
+    needs: build-and-push
+    runs-on: ubuntu-latest
+    steps:
+      - name: Install Trivy
+        run: |
+          curl -sfL https://raw.githubusercontent.com/aquasecurity/trivy/main/contrib/install.sh | sh -s -- -b /usr/local/bin
+
+      - name: Scan Bot image
+        run: |
+          trivy image \
+            --severity HIGH,CRITICAL \
+            --exit-code 1 \
+            --format table \
+            git.codeanddice.ru/toutsu/gmrelay-bot:${{ env.VERSION }}
+
+      - name: Scan Web image
+        run: |
+          trivy image \
+            --severity HIGH,CRITICAL \
+            --exit-code 1 \
+            --format table \
+            git.codeanddice.ru/toutsu/gmrelay-web:${{ env.VERSION }}
+
   # ЧАСТЬ 2: Запускаем эти образы на самом сервере
   deploy:
-    needs: build-and-push
+    needs: scan-images
     runs-on: ubuntu-latest # Тот же локальный раннер
     steps:
       - name: Checkout repository

.gitea/workflows/pr-checks.yml

@@ -61,15 +61,15 @@ jobs:
           fi
           exit "${trivy_exit}"
 
-      # ── Build ──
+      # ── Build (includes SAST via SecurityCodeScan Roslyn analyzer) ──
 
       - name: Build Shared
         run: dotnet build src/GmRelay.Shared/GmRelay.Shared.csproj --no-restore
 
-      - name: Build Bot (compile check)
+      - name: Build Bot (compile check, includes SAST)
         run: dotnet build src/GmRelay.Bot/GmRelay.Bot.csproj --no-restore
 
-      - name: Build Web (compile check)
+      - name: Build Web (compile check, includes SAST)
         run: dotnet build src/GmRelay.Web/GmRelay.Web.csproj --no-restore
 
       # ── Tests ──

Directory.Build.props

@@ -8,4 +8,8 @@
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
     <RestorePackagesWithLockFile>true</RestorePackagesWithLockFile>
   </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="SecurityCodeScan.VS2019" Version="5.6.7" PrivateAssets="all" />
+  </ItemGroup>
 </Project>