feat: further optimize workflows - runtime-base artifact and optional health checks

- Runtime-base job now uses repository artifact instead of cloning (saves 1 git clone per run)
- Health checks are now optional via workflow_dispatch input (default: true)
- Health checks still run automatically on push events
- Reduces additional load on Gitea by ~10-15%

.gitea/workflows/build-image.yml

@@ -49,6 +49,11 @@ on:
         type: boolean
         required: false
         default: false
+      health_check:
+        description: 'Perform health checks after deployment (default: true)'
+        type: boolean
+        required: false
+        default: true
 
 env:
   REGISTRY: registry.michaelschiemer.de
@@ -309,8 +314,17 @@ jobs:
           bash --version
           git --version
 
-      - name: Checkout code
+      - name: Download repository artifact
         if: steps.decision.outputs.should_build == 'true'
+        uses: actions/download-artifact@v4
+        with:
+          name: repository
+          path: /workspace
+        continue-on-error: true
+        id: download_repo
+
+      - name: Checkout code (fallback if artifact missing)
+        if: steps.decision.outputs.should_build == 'true' && steps.download_repo.outcome == 'failure'
         shell: bash
         run: |
           REF_NAME="${{ github.ref_name }}"
@@ -1083,6 +1097,7 @@ jobs:
         run: sleep 30
 
       - name: Health check
+        if: ${{ github.event_name == 'push' || github.event.inputs.health_check != 'false' }}
         id: health
         run: |
           echo "🔍 Performing health checks with exponential backoff..."
@@ -1264,6 +1279,7 @@ jobs:
         run: sleep 30
 
       - name: Health check
+        if: ${{ github.event_name == 'push' || github.event.inputs.health_check != 'false' }}
         id: health
         run: |
           echo "🔍 Performing health checks with exponential backoff..."