chore: 更新后端依赖，初始化数据库迁移与 MOM 外部系统连接

backend/app/api/v1/router.py

@@ -1,7 +1,15 @@
 from fastapi import APIRouter
 
+from app.api.v1.endpoints.products import router as products_router
+from app.api.v1.endpoints.tasks import router as tasks_router
+from app.api.v1.endpoints.orders import router as orders_router
+from app.api.v1.endpoints.dashboard import router as dashboard_router
+from app.api.v1.endpoints.auth import router as auth_router
+
 api_router = APIRouter()
 
-# 后续在此注册子路由
-# from app.api.v1 import users, products, orders, ...
-# api_router.include_router(users.router, prefix="/users", tags=["用户管理"])
+api_router.include_router(auth_router)
+api_router.include_router(dashboard_router)
+api_router.include_router(orders_router)
+api_router.include_router(products_router)
+api_router.include_router(tasks_router)

backend/app/core/mom_database.py

@@ -0,0 +1,24 @@
+"""MOM 系统数据库 — 只读连接，用于登录验证 sys_user 表"""
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker, Session
+from sqlalchemy.pool import NullPool
+
+# MOM 数据库连接（同步引擎，仅用于登录验证）
+import os
+# Docker 容器内用 host.docker.internal 访问宿主机
+MOM_HOST = os.environ.get("MOM_DB_HOST", "host.docker.internal")
+MOM_PORT = os.environ.get("MOM_DB_PORT", "5435")
+MOM_DATABASE_URL = f"postgresql://prod_user:StrongPassword123!@{MOM_HOST}:{MOM_PORT}/inventory_system"
+
+mom_engine = create_engine(
+    MOM_DATABASE_URL,
+    echo=False,
+    poolclass=NullPool,  # 登录频率低，不用连接池
+)
+
+MomSessionLocal = sessionmaker(
+    mom_engine,
+    class_=Session,
+    autocommit=False,
+    autoflush=False,
+)

backend/app/models/__init__.py

@@ -4,7 +4,6 @@ from app.models.production_order import ProductionOrder
 from app.models.product import Product
 from app.models.task import Task
 from app.models.task_log import TaskLog
-
 __all__ = [
     "Base",
     "ProductionOrder",