chore: align production verify loop with staging (refs #82)

Add Docker healthcheck loop to production verify-prod job matching
staging's 24 attempts x 10 seconds = 4 minutes max wait for backend
migrations.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.gitea/workflows/production.yaml

@@ -253,6 +253,49 @@ jobs:
       - name: Wait for routing propagation
         run: sleep 5
 
+      - name: Check container status and health
+        run: |
+          for service in mvp-frontend-$TARGET_STACK mvp-backend-$TARGET_STACK mvp-ocr; do
+            status=$(docker inspect --format='{{.State.Status}}' $service 2>/dev/null || echo "not found")
+            if [ "$status" != "running" ]; then
+              echo "ERROR: $service is not running (status: $status)"
+              docker logs $service --tail 50 2>/dev/null || true
+              exit 1
+            fi
+            echo "OK: $service is running"
+          done
+
+          # Wait for Docker healthchecks to complete (services with healthcheck defined)
+          echo ""
+          echo "Waiting for Docker healthchecks..."
+          for service in mvp-frontend-$TARGET_STACK mvp-backend-$TARGET_STACK mvp-ocr; do
+            # Check if service has a healthcheck defined
+            has_healthcheck=$(docker inspect --format='{{if .Config.Healthcheck}}true{{else}}false{{end}}' $service 2>/dev/null || echo "false")
+            if [ "$has_healthcheck" = "true" ]; then
+              # 24 attempts x 10 seconds = 4 minutes max wait (backend with fresh migrations can take ~3 min)
+              for i in $(seq 1 24); do
+                health=$(docker inspect --format='{{.State.Health.Status}}' $service 2>/dev/null || echo "unknown")
+                if [ "$health" = "healthy" ]; then
+                  echo "OK: $service is healthy"
+                  break
+                elif [ "$health" = "unhealthy" ]; then
+                  echo "ERROR: $service is unhealthy"
+                  docker logs $service --tail 50 2>/dev/null || true
+                  exit 1
+                fi
+                if [ $i -eq 24 ]; then
+                  echo "ERROR: $service health check timed out (status: $health)"
+                  docker logs $service --tail 50 2>/dev/null || true
+                  exit 1
+                fi
+                echo "Waiting for $service healthcheck... (attempt $i/24, status: $health)"
+                sleep 10
+              done
+            else
+              echo "SKIP: $service has no healthcheck defined"
+            fi
+          done
+
       - name: External health check
         run: |
           REQUIRED_FEATURES='["admin","auth","onboarding","vehicles","documents","fuel-logs","stations","maintenance","platform","notifications","user-profile","user-preferences","user-export"]'