update the user_id type

components/SmartChatBox/api.ts

@@ -505,7 +505,7 @@ export async function sendMessage(
     session_id: `project_${config.projectId}_user_${config.userId}`,
     user_input: textBlocks.map(b => (b as { text: string }).text).join("\n"),
     project_id: config.projectId,
-    user_id: config.userId,
+    user_id: config.userId.toString(),
   };
 
   // 如果有图片，添加第一张图片的URL

components/SmartChatBox/types.ts

@@ -55,7 +55,7 @@ export interface SendMessageRequest {
   user_input: string;
   image_url?: string;
   project_id: string;
-  user_id: number;
+  user_id: string;
 }
 
 export interface ApiResponse<T> {