fix

src/api/client.js

@@ -2,6 +2,12 @@
 const TOKEN_KEY = 'iboard_token'
 const REMEMBER_KEY = 'iboard_remember'
 
+// API 基址:
+//   - 默认相对路径 `/api` (web dev: Vite 代理; web prod: 同源 Express 一起托管)
+//   - 打包 Android 时设 VITE_API_BASE=http://bh.vps.honor3.com:3001 走外网后端
+const API_BASE = (import.meta.env.VITE_API_BASE || '').replace(/\/+$/, '')
+const API_PREFIX = API_BASE ? API_BASE + '/api' : '/api'
+
 export function getToken() {
   return localStorage.getItem(TOKEN_KEY) || ''
 }
@@ -20,9 +26,13 @@ export function setRememberFlag(v) {
   else localStorage.removeItem(REMEMBER_KEY)
 }
 
+export function getApiBase() {
+  return API_BASE
+}
+
 export async function api(path, { method = 'GET', body, headers = {} } = {}) {
   const token = getToken()
-  const res = await fetch('/api' + path, {
+  const res = await fetch(API_PREFIX + path, {
     method,
     headers: {
       'Content-Type': 'application/json',