✨ 格式化db_context (#1980)

* ✨ 格式化db_context

* 🔥 移除旧db-context

* ⚡ 添加旧版本兼容

zhenxun/services/db_context/utils.py

@@ -0,0 +1,27 @@
+import asyncio
+import time
+
+from zhenxun.services.log import logger
+
+from .config import (
+    DB_TIMEOUT_SECONDS,
+    LOG_COMMAND,
+    SLOW_QUERY_THRESHOLD,
+)
+
+
+async def with_db_timeout(
+    coro, timeout: float = DB_TIMEOUT_SECONDS, operation: str | None = None
+):
+    """带超时控制的数据库操作"""
+    start_time = time.time()
+    try:
+        result = await asyncio.wait_for(coro, timeout=timeout)
+        elapsed = time.time() - start_time
+        if elapsed > SLOW_QUERY_THRESHOLD and operation:
+            logger.warning(f"慢查询: {operation} 耗时 {elapsed:.3f}s", LOG_COMMAND)
+        return result
+    except asyncio.TimeoutError:
+        if operation:
+            logger.error(f"数据库操作超时: {operation} (>{timeout}s)", LOG_COMMAND)
+        raise