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

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

deploy/docker/docker-compose.dev.yml

@@ -48,6 +48,7 @@ services:
       context: ../..
       dockerfile: deploy/docker/Dockerfile.dev
     container_name: gochat-app
+    stop_grace_period: 30s
     depends_on:
       postgres:
         condition: service_healthy
@@ -70,12 +71,13 @@ services:
       context: ../..
       dockerfile: deploy/docker/Dockerfile.dev
     container_name: gochat-worker
+    stop_grace_period: 30s
     depends_on:
       postgres:
         condition: service_healthy
       redis:
         condition: service_healthy
-    command: ["serve", "--worker-only"]
+    command: ["go", "run", "./cmd/gochat", "worker"]
     volumes:
       - ../../backend:/app
     env_file: ../../.env