feat: 手动充值、邀请码注册与后台管理增强

新增玩家手动充值全流程（收款方式配置、充值下单/审核、钱包上分），
支持邀请码注册、邀请历史与专属返水率；完善后台代理/玩家管理与响应式操作栏，
并补充前台注册、充值页及多语言错误码。

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/player/src/stores/auth.ts

@@ -32,6 +32,23 @@ export const useAuthStore = defineStore('auth', () => {
     return returnTo;
   }
 
+  async function register(username: string, password: string, inviteCode?: string) {
+    const locale = localStorage.getItem('locale') || 'zh-CN';
+    const code = inviteCode?.trim();
+    const { data } = await api.post('/player/auth/register', {
+      username,
+      password,
+      locale,
+      ...(code ? { inviteCode: code } : {}),
+    });
+    token.value = data.data.token;
+    user.value = data.data.user;
+    localStorage.setItem('token', token.value);
+    localStorage.setItem('user', JSON.stringify(user.value));
+    loginReturnTo.value = '';
+    loginPromptVisible.value = false;
+  }
+
   function logout() {
     token.value = '';
     user.value = null;
@@ -40,7 +57,7 @@ export const useAuthStore = defineStore('auth', () => {
   }
 
   return {
-    token, user, login, logout,
+    token, user, login, register, logout,
     loginPromptVisible, loginReturnTo,
     showLoginPrompt, hideLoginPrompt,
   };