feat(web): add account workspaces and signed content flows

web/src/core-bridge/captcha.ts

@@ -1,18 +1,8 @@
-const API_BASE = import.meta.env.VITE_WEBDROP_API_URL ?? '/api/v1';
-
-interface ServerInfo {
-  captcha?: { enabled?: boolean; api_endpoint?: string };
-}
+import { serverApi } from './server';
 
 /** Cap performs challenge solving in its own workers and only returns a one-use token. */
 export async function solveCreationCaptcha(): Promise<string | undefined> {
-  const response = await fetch(`${API_BASE.replace(/\/$/, '')}/info`, {
-    cache: 'no-store',
-    credentials: 'omit',
-    referrerPolicy: 'no-referrer',
-  });
-  if (!response.ok) throw new Error('无法读取服务端能力');
-  const info = await response.json() as ServerInfo;
+  const info = await serverApi.info();
   if (!info.captcha?.enabled) return undefined;
   if (typeof info.captcha.api_endpoint !== 'string') throw new Error('验证码服务配置无效');