feat: AI routing DB-driven, payment gateway full integration, WeChat mini-program CI/CD

- AI routing rules now stored in system_configs DB table instead of hardcoded config
- Multi-model support via name|model composite key for same-provider routing
- UnifiedPayService with HMAC-SHA256 gateway integration (alipay/wechat)
- Admin payment panel: list, stats, search, filter, refund
- WeChat mini-program CI/CD via miniprogram-ci (v1.0.9)
- Translation quota extended to LLM provider tier
- SearchService with DB-driven provider config (bing/google_cse/searxng)
- Footer cleanup across admin/workspace/uni-app
- Private key excluded from git tracking

uni-app/src/pages/profile/profile.vue

@@ -49,21 +49,31 @@
         <text class="menu-text">意见反馈</text>
         <text class="menu-arrow">›</text>
       </view>
-      <view class="menu-item" @click="goAgreement('privacy')">
-        <text class="menu-icon">📄</text>
-        <text class="menu-text">隐私政策</text>
-        <text class="menu-arrow">›</text>
+    </view>
+
+    <view class="section">
+      <view class="section-title">关于我们</view>
+      <view class="about-item">
+        <text class="about-label">版本</text>
+        <text class="about-value">1.0.0</text>
       </view>
-      <view class="menu-item" @click="goAgreement('terms')">
-        <text class="menu-icon">📋</text>
-        <text class="menu-text">用户协议</text>
-        <text class="menu-arrow">›</text>
+      <view class="about-item" @click="goAgreement('privacy')">
+        <text class="about-label">隐私政策</text>
+        <text class="about-arrow">›</text>
       </view>
-      <view class="menu-item">
-        <text class="menu-icon">ℹ️</text>
-        <text class="menu-text">版本</text>
-        <text class="menu-value">1.0.0</text>
+      <view class="about-item" @click="goAgreement('terms')">
+        <text class="about-label">用户协议</text>
+        <text class="about-arrow">›</text>
       </view>
+      <view class="about-item">
+        <text class="about-label">ICP 备案</text>
+        <text class="about-value">京ICP备2026007249号-1</text>
+      </view>
+      <view class="about-item">
+        <text class="about-label">公安备案</text>
+        <text class="about-value">京公网安备11011502039545号</text>
+      </view>
+      <view class="about-copyright">© 2026 北京宇之然科技中心. 保留所有权利.</view>
     </view>
 
     <view class="logout-btn" v-if="user.tier !== 'guest'" @click="logout">退出登录</view>
@@ -412,4 +422,36 @@ onShow(loadUser)
   background: #1890ff;
   color: #fff;
 }
+
+.about-item {
+  display: flex;
+  align-items: center;
+  padding: 24rpx 30rpx;
+  border-bottom: 2rpx solid #f0f0f0;
+}
+
+.about-item:last-child { border-bottom: none; }
+
+.about-label {
+  flex: 1;
+  font-size: 26rpx;
+  color: #666;
+}
+
+.about-value {
+  font-size: 24rpx;
+  color: #999;
+}
+
+.about-arrow {
+  font-size: 32rpx;
+  color: #ccc;
+}
+
+.about-copyright {
+  text-align: center;
+  padding: 24rpx 30rpx;
+  font-size: 22rpx;
+  color: #bbb;
+}
 </style>