refactor(api): 移除未使用的配置接口及相关Hook

- 从cmsWebsiteField接口中删除configWebsiteField方法
- 删除useConfig自定义Hook及其引用
- 更新about页面，去除对config对象和useConfig的使用
- 修正invite模块请求URL，统一加上/api前缀

src/passport/invite/index.tsx

@@ -79,11 +79,11 @@ const InvitePage: React.FC = () => {
   const fetchInviteInfo = async (inviteToken: string) => {
     try {
       console.log('开始获取邀请信息, token:', inviteToken);
-      console.log('请求URL:', `${SERVER_API_URL}/api/_app/developer/invite/info?token=${encodeURIComponent(inviteToken)}`);
+      console.log('请求URL:', `${INVITE_API_URL}/api/developer/invite/info?token=${encodeURIComponent(inviteToken)}`);
       console.log('请求头:', { 'content-type': 'application/json', TenantId });
 
       const res = await Taro.request({
-        url: `${INVITE_API_URL}/developer/invite/info?token=${encodeURIComponent(inviteToken)}`,
+        url: `${INVITE_API_URL}/api/developer/invite/info?token=${encodeURIComponent(inviteToken)}`,
         method: 'GET',
         header: {
           'content-type': 'application/json',
@@ -142,7 +142,7 @@ const InvitePage: React.FC = () => {
       setAuthLoading(true);
 
       const res = await Taro.request({
-        url: `${INVITE_API_URL}/developer/invite/accept`,
+        url: `${INVITE_API_URL}/api/developer/invite/accept`,
         method: 'POST',
         data: {
           token,