Verify health after deployment rollback

.gitea/workflows/ci.yaml

@@ -88,7 +88,26 @@ jobs:
             docker rm -f devops-platform || true
             if ! IMAGE="$OLD_IMAGE" docker compose up -d --no-build app; then
               echo "ERROR: rollback failed; manual recovery required"
+              exit 1
             fi
+
+            ROLLBACK_HEALTHY=false
+
+            for attempt in $(seq 1 15); do
+              if docker exec devops-platform python -c \
+                "import urllib.request; r=urllib.request.urlopen('http://127.0.0.1:8000/health', timeout=2); assert r.status == 200"; then
+                ROLLBACK_HEALTHY=true
+                break
+              fi
+              sleep 2
+            done
+
+            if [ "$ROLLBACK_HEALTHY" = true ]; then
+              echo "Rollback successful; previous version is healthy"
+            else
+              echo "ERROR: rollback container failed health check; manual recovery required"
+            fi
+
             exit 1
           fi