Refactor payload schemas to use string IDs

Replaced Type.Union([Type.Number(), Type.String()]) with Type.String for group_id, user_id, and similar fields across all action payload schemas to standardize input types. Also made minor improvements to error handling, return types, and removed unused imports for better code clarity and consistency.

packages/napcat-onebot/action/file/online/SendOnlineFolder.ts

@@ -4,7 +4,7 @@ import { Static, Type } from '@sinclair/typebox';
 import { ChatType } from 'napcat-core/types';
 
 export const SendOnlineFolderPayloadSchema = Type.Object({
-  user_id: Type.Union([Type.Number(), Type.String()], { description: '用户 QQ' }),
+  user_id: Type.String({ description: '用户 QQ' }),
   folder_path: Type.String({ description: '本地文件夹路径' }),
   folder_name: Type.Optional(Type.String({ description: '文件夹名称 (可选)' })),
 });