style: format to avoid max-line validation error

Author: eyeonyou

src/mcp/server/sse.py

@@ -97,9 +97,12 @@ async def connect_sse(self, scope: Scope, receive: Receive, send: Send):
 
         session_id = uuid4()
         request_path = scope["path"]
+        
         match = re.match(r"^/([^/]+(?:/mcp)?)/sse$", request_path)
         mount_prefix = match.group(1) if match else ""
-        session_uri = f"/{quote(mount_prefix)}{quote(self._endpoint)}?session_id={session_id.hex}"
+        
+        session_uri = f"/{quote(mount_prefix)}{quote(self._endpoint)}"
+        session_uri += f"?session_id={session_id.hex}"
 
         self._read_stream_writers[session_id] = read_stream_writer
         logger.debug(f"Created new session with ID: {session_id}")