🔧 build(deploy): 取消宿主端口映射的默认值——.env 必须显式配置

三个 compose 文件的 ports 映射去掉 ${VAR:-默认值} 兜底：

- docker-compose.yml: frontend ${FRONTEND_PORT:-10003} → ${FRONTEND_PORT}
- docker-compose.moldinsight.yml: moldinsight ${MOLDINSIGHT_PORT:-10003} → ${MOLDINSIGHT_PORT}
- docker-compose.inventory.yml: inventory ${INVENTORY_PORT:-10004} → ${INVENTORY_PORT}

端口必须由 .env 显式配置，否则 compose 启动期 fail-fast（避免悄悄用了
某个端口导致宿主端口冲突或调试时困惑）。

注：DB_PORT:5432 / REDIS_PORT:6379 等应用行为默认值保留（与"宿主机
端口"不同，属基础设施默认端口，不影响端口暴露策略）。

Co-Authored-By: Claude Code <noreply@anthropic.com>

docker-compose.inventory.yml

@@ -38,7 +38,7 @@ services:
     container_name: gemold_inventory
     command: ["python", "-m", "uvicorn", "entrypoints.inventory:app", "--host", "0.0.0.0", "--port", "8001"]
     ports:
-      - "${INVENTORY_PORT:-10004}:8001"
+      - "${INVENTORY_PORT}:8001"
     environment:
       <<: *inventory_env
       HOST: 0.0.0.0

docker-compose.moldinsight.yml

@@ -57,7 +57,7 @@ services:
     container_name: gemold_moldinsight
     command: ["python", "-m", "uvicorn", "entrypoints.moldinsight:app", "--host", "0.0.0.0", "--port", "8000"]
     ports:
-      - "${MOLDINSIGHT_PORT:-10003}:8000"
+      - "${MOLDINSIGHT_PORT}:8000"
     environment:
       <<: *base_env
       HOST: 0.0.0.0

docker-compose.yml

@@ -61,8 +61,8 @@ services:
     image: gemold-frontend:latest
     container_name: gemold_frontend
     ports:
-      # 浏览器入口端口（默认 10003）；容器内 nginx 监听 8000 反代到 backend 8000
+      # 浏览器入口端口（无默认值：必须由 .env 中 FRONTEND_PORT 显式配置）
-      - "${FRONTEND_PORT:-10003}:8000"
+      - "${FRONTEND_PORT}:8000"
     depends_on:
       - backend
     restart: unless-stopped