重构数据库连接管理，添加元数据支持

app/infra/db/timescaledb/router.py

@@ -1,42 +1,32 @@
 from fastapi import APIRouter, Depends, HTTPException, Query
-from typing import List, Optional
+from typing import List
 from datetime import datetime
 from psycopg import AsyncConnection
 
-from .database import get_database_instance
 from .schemas.realtime import RealtimeRepository
 from .schemas.scheme import SchemeRepository
 from .schemas.scada import ScadaRepository
 from .composite_queries import CompositeQueries
-from app.infra.db.postgresql.database import (
-    get_database_instance as get_postgres_database_instance,
+from app.auth.project_dependencies import (
+    get_project_pg_connection,
+    get_project_timescale_connection,
 )
 
 router = APIRouter()
 
 
-# 创建支持数据库选择的连接依赖函数
+# 动态项目 TimescaleDB 连接依赖
 async def get_database_connection(
-    db_name: Optional[str] = Query(
-        None, description="指定要连接的数据库名称，为空时使用默认数据库"
-    )
+    conn: AsyncConnection = Depends(get_project_timescale_connection),
 ):
-    """获取数据库连接，支持通过查询参数指定数据库名称"""
-    instance = await get_database_instance(db_name)
-    async with instance.get_connection() as conn:
-        yield conn
+    yield conn
 
 
-# PostgreSQL 数据库连接依赖函数
+# 动态项目 PostgreSQL 连接依赖
 async def get_postgres_connection(
-    db_name: Optional[str] = Query(
-        None, description="指定要连接的 PostgreSQL 数据库名称，为空时使用默认数据库"
-    )
+    conn: AsyncConnection = Depends(get_project_pg_connection),
 ):
-    """获取 PostgreSQL 数据库连接，支持通过查询参数指定数据库名称"""
-    instance = await get_postgres_database_instance(db_name)
-    async with instance.get_connection() as conn:
-        yield conn
+    yield conn
 
 
 # --- Realtime Endpoints ---