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.prod.yml

@@ -77,6 +77,7 @@ services:
   gochat:
     image: *gochat-image
     restart: always
+    stop_grace_period: ${GOCHAT_STOP_GRACE_PERIOD:-35s}
     depends_on:
       postgres:
         condition: service_healthy
@@ -90,7 +91,7 @@ services:
     volumes:
       - gochat_storage:/app/storage
     healthcheck:
-      test: ["CMD", "curl", "-fsS", "http://127.0.0.1:3000/health"]
+      test: ["CMD", "curl", "-fsS", "http://127.0.0.1:3000/ready"]
       interval: 10s
       timeout: 5s
       start_period: 15s
@@ -107,14 +108,17 @@ services:
   worker:
     image: *gochat-image
     restart: always
+    stop_grace_period: ${GOCHAT_STOP_GRACE_PERIOD:-35s}
     depends_on:
+      gochat:
+        condition: service_healthy
       postgres:
         condition: service_healthy
       redis:
         condition: service_healthy
       meilisearch:
         condition: service_healthy
-    command: ["serve", "--worker-only"]
+    command: ["worker"]
     environment:
       <<: *gochat-environment
       GOCHAT_DATABASE_RUN_MIGRATIONS: "false"