fix(deploy): make docker-compose deploy correctly on Coolify

docker-compose.yml

@@ -7,7 +7,10 @@ services:
     expose:
       - "3001"
     volumes:
-      - ./data:/app/data
+      # Named volume (not a relative bind mount): Coolify resolves it under the
+      # resource's managed storage and it survives redeploys without the
+      # convert-to-directory bind-mount pitfalls.
+      - b2b_data:/app/data
     environment:
       - NODE_ENV=production
       # SQLite file inside the mounted volume so data survives redeploys.
@@ -51,28 +54,25 @@ services:
     mem_limit: 128m
     cpus: "0.5"
     healthcheck:
-      # nginx:alpine has busybox wget.
-      test: ["CMD", "wget", "--spider", "-q", "http://localhost:80/"]
+      # nginx:alpine has busybox wget. Use 127.0.0.1 (not localhost): localhost
+      # resolves to ::1 first and nginx listens IPv4-only, so wget would fail
+      # forever, the container would never go healthy, and Traefik would drop it
+      # from the load balancer (503 "no available server").
+      test: ["CMD", "wget", "--spider", "-q", "http://127.0.0.1:80/"]
       interval: 30s
       timeout: 5s
       retries: 3
       start_period: 10s
-    networks:
-      - default
-      - coolify
-    labels:
-      - traefik.enable=true
-      - "traefik.http.routers.b2b-web.rule=Host(`b2b.nxssie.dev`)"
-      - traefik.http.routers.b2b-web.entrypoints=websecure
-      - traefik.http.routers.b2b-web.tls=true
-      - traefik.http.routers.b2b-web.tls.certresolver=letsencrypt
-      - traefik.http.services.b2b-web.loadbalancer.server.port=80
+    # No custom networks and no hardcoded Traefik labels: Coolify auto-creates
+    # the per-stack network, attaches its proxy, and generates the correct
+    # routers/TLS when you set this service's domain (https://b2b.nxssie.dev) in
+    # the Coolify UI. Declaring our own network or labels here would multi-home
+    # the container (intermittent 504s) and collide with Coolify's generated set.
     logging:
       driver: json-file
       options:
         max-size: "10m"
         max-file: "3"
 
-networks:
-  coolify:
-    external: true
+volumes:
+  b2b_data: