🚀 Complete automation pipeline with SSL, testing, and deployment

✨ Features:
- Full SSL setup with Let's Encrypt for all environments
- Automated CI/CD pipeline with GitHub Actions
- Comprehensive smoke testing workflow
- Auto-deploy to dev on main branch push
- Manual staging/production deployments with confirmation
- Istio + nginx SSL termination architecture

🔧 Infrastructure:
- Migrated from Kourier to Istio for Knative ingress
- nginx handles SSL termination and public traffic
- Istio manages internal Knative service routing
- Scale-to-zero configuration for all environments

🧪 Testing:
- SSL certificate validation and expiry checks
- Domain accessibility and content validation
- Performance testing and redirect behavior validation
- Automated smoke tests on every deployment

🌐 Domains:
- Dev: https://2048-dev.wa.darknex.us
- Staging: https://2048-staging.wa.darknex.us
- Production: https://2048.wa.darknex.us

📦 Deployment:
- Uses latest GHCR images with imagePullPolicy: Always
- Automated secret management across namespaces
- Environment-specific Knative service configurations
- Clean manifest structure with proper labeling

.github/workflows/build-image.yml

@@ -1,10 +1,10 @@
-name: Build and Push Image
+name: Build and Push Container Image
 
 on:
   push:
-    branches: [ main, develop ]
+    branches: [ main ]
   pull_request:
-    branches: [ main, develop ]
+    branches: [ main ]
 
 env:
   REGISTRY: ghcr.io
@@ -39,7 +39,7 @@ jobs:
           type=sha,prefix={{branch}}-
           type=raw,value=latest,enable={{is_default_branch}}
 
-    - name: Build and push Docker image
+    - name: Build and push container image
       uses: docker/build-push-action@v5
       with:
         context: .
@@ -47,5 +47,18 @@ jobs:
         tags: ${{ steps.meta.outputs.tags }}
         labels: ${{ steps.meta.outputs.labels }}
 
-    - name: Image digest
-      run: echo "Image pushed with digest ${{ steps.build.outputs.digest }}"
+    - name: Create build summary
+      run: |
+        echo "## 📦 Container Image Build Summary" >> $GITHUB_STEP_SUMMARY
+        echo "" >> $GITHUB_STEP_SUMMARY
+        echo "| Field | Value |" >> $GITHUB_STEP_SUMMARY
+        echo "|-------|-------|" >> $GITHUB_STEP_SUMMARY
+        echo "| Registry | ${{ env.REGISTRY }} |" >> $GITHUB_STEP_SUMMARY
+        echo "| Image | ${{ env.IMAGE_NAME }} |" >> $GITHUB_STEP_SUMMARY
+        echo "| Tags | $(echo '${{ steps.meta.outputs.tags }}' | tr '\n' ', ') |" >> $GITHUB_STEP_SUMMARY
+        echo "| Trigger | ${{ github.event_name }} |" >> $GITHUB_STEP_SUMMARY
+        echo "" >> $GITHUB_STEP_SUMMARY
+        echo "### Next Steps" >> $GITHUB_STEP_SUMMARY
+        echo "- 🧪 Development deployment will trigger automatically" >> $GITHUB_STEP_SUMMARY
+        echo "- 🎭 [Deploy to staging manually](https://github.com/${{ github.repository }}/actions/workflows/deploy-staging.yml)" >> $GITHUB_STEP_SUMMARY
+        echo "- 🚀 [Deploy to production manually](https://github.com/${{ github.repository }}/actions/workflows/deploy-prod.yml)" >> $GITHUB_STEP_SUMMARY