M19: harden performance and recovery

compose.yaml

@@ -47,7 +47,7 @@ services:
       db:
         condition: service_healthy
     healthcheck:
-      test: ["CMD", "python", "-c", "import urllib.request; urllib.request.urlopen('http://localhost:8000/health')"]
+      test: ["CMD", "python", "-c", "import urllib.request; urllib.request.urlopen('http://localhost:8000/health/ready')"]
       interval: 10s
       timeout: 5s
       retries: 10
@@ -65,7 +65,8 @@ services:
     networks: [mobilityops]
 
   n8n:
-    image: n8nio/n8n:latest
+    # Explicit fallback only; production reuses the server's existing central n8n.
+    image: n8nio/n8n:2.33.7
     environment:
       TZ: ${TZ:-Europe/Brussels}
       GENERIC_TIMEZONE: ${TZ:-Europe/Brussels}