HH-442: isolate runtime processes and harden shutdown (#90)

* HH-442: isolate runtime processes and harden shutdown

* HH-442: harden worker shutdown races

* HH-442: gate dependency shutdown on active handlers

---------

Co-authored-by: Rogee <rogee@ipao.vip>

deploy/docker/docker-compose.yml

@@ -48,6 +48,7 @@ services:
       context: ../..
       dockerfile: deploy/docker/Dockerfile
     container_name: gochat-app
+    stop_grace_period: 30s
     depends_on:
       postgres:
         condition: service_healthy
@@ -63,6 +64,27 @@ services:
     volumes:
       - ../../backend:/app:delegated
 
+  worker:
+    build:
+      context: ../..
+      dockerfile: deploy/docker/Dockerfile
+    container_name: gochat-worker
+    stop_grace_period: 30s
+    depends_on:
+      postgres:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
+    env_file: ../../.env
+    environment:
+      - GOCHAT_ENV=development
+      - GOCHAT_DATABASE_DSN=postgres://postgres:postgres@postgres:5432/gochat_dev?sslmode=disable
+      - GOCHAT_DATABASE_RUN_MIGRATIONS=false
+      - GOCHAT_REDIS_DSN=redis://redis:6379
+    volumes:
+      - ../../backend:/app:delegated
+    command: ["worker"]
+
 volumes:
   postgres_data:
   redis_data: