added optional mongo url

src/monitor_utils/database.py

@@ -66,15 +66,18 @@ def resolve_alerts_collection(
 
 
 @cache
-def get_mongo_client() -> AsyncIOMotorClient:
+def get_mongo_client(mongo_url: str = MONGO_URL) -> AsyncIOMotorClient:
     """Return a cached Motor client configured for the shared cluster.
 
+    Args:
+        mongo_url: The mongo url to use for connections.
+
     Returns:
         The pooled, timezone-aware Motor client.
     """
 
     return AsyncIOMotorClient(
-        MONGO_URL,
+        mongo_url,
         minPoolSize=10,
         connectTimeoutMS=20_000,
         socketTimeoutMS=60_000,