fix: Use service config instead of global config in status endpoint

- Changed status check to use graphiti_service.config.database.provider
- Ensures status reports the actual running database, not potentially stale global
- Fixes issue where status always reported falkordb regardless of config

mcp_server/src/graphiti_mcp_server.py

@@ -723,8 +723,8 @@ async def get_status() -> StatusResponse:
             if result:
                 _ = [record async for record in result]
 
-        # Use the actual configured provider from the global config
-        provider_name = config.database.provider
+        # Use the provider from the service's config, not the global
+        provider_name = graphiti_service.config.database.provider
         return StatusResponse(
             status='ok',
             message=f'Graphiti MCP server is running and connected to {provider_name} database',