refactor(storage): route project DSNs and remove legacy backends

app/infra/db/timescaledb/database.py

@@ -3,7 +3,7 @@ from contextlib import asynccontextmanager
 from typing import AsyncGenerator, Dict, Optional
 import psycopg_pool
 from psycopg.rows import dict_row
-from app.core.config import get_timescaledb_pgconn_string
+from app.infra.db.project_routing import get_project_timescale_pgconn_string
 
 # Configure logging
 logger = logging.getLogger(__name__)
@@ -13,6 +13,7 @@ class Database:
     def __init__(self, db_name=None):
         self.pool = None
         self.db_name = db_name
+        self.conninfo = None
 
     def init_pool(self, db_name=None):
         """Initialize the connection pool."""
@@ -21,9 +22,10 @@ class Database:
         
         # Get connection string, handling default case where target_db_name might be None
         if target_db_name:
-            conn_string = get_timescaledb_pgconn_string(db_name=target_db_name)
+            conn_string = get_project_timescale_pgconn_string(db_name=target_db_name)
         else:
-            conn_string = get_timescaledb_pgconn_string()
+            conn_string = get_project_timescale_pgconn_string()
+        self.conninfo = conn_string
 
         try:
             self.pool = psycopg_pool.AsyncConnectionPool(
@@ -54,8 +56,8 @@ class Database:
         """Get the TimescaleDB connection string."""
         target_db_name = db_name or self.db_name
         if target_db_name:
-            return get_timescaledb_pgconn_string(db_name=target_db_name)
-        return get_timescaledb_pgconn_string()
+            return get_project_timescale_pgconn_string(db_name=target_db_name)
+        return get_project_timescale_pgconn_string()
 
     @asynccontextmanager
     async def get_connection(self) -> AsyncGenerator:
@@ -84,6 +86,12 @@ async def get_database_instance(db_name: Optional[str] = None) -> Database:
     if not db_name:
         return db  # 返回默认数据库实例
 
+    expected_conninfo = get_project_timescale_pgconn_string(db_name=db_name)
+    existing = _database_instances.get(db_name)
+    if existing is not None and existing.conninfo != expected_conninfo:
+        await existing.close()
+        del _database_instances[db_name]
+
     if db_name not in _database_instances:
         # 创建新的数据库实例
         instance = create_database_instance(db_name)