feat: 增加环境切换

miniprogram/supportPages/debug/debug.wxml

@@ -1,9 +1,24 @@
 <view class="debug-page">
-    <view class="debug-page__hero">
-        <text class="debug-page__hero-title">Debug 工具页</text>
-        <text class="debug-page__hero-desc">
-            仅开发环境可见，用于发布前检查和同步调试数据。
-        </text>
+    <view wx:if="{{isDevEnv}}" class="debug-page__environment">
+        <text class="debug-page__section-title"
+            >接口环境 · {{currentEnvironment}}</text
+        >
+        <text class="debug-page__environment-url">{{currentBaseUrl}}</text>
+        <view class="debug-page__environment-options">
+            <button
+                wx:for="{{environments}}"
+                wx:key="environment"
+                class="debug-environment-option {{currentEnvironment === item.environment ? 'debug-environment-option--selected' : ''}}"
+                data-environment="{{item.environment}}"
+                disabled="{{!item.available || isSwitchingEnvironment}}"
+                bindtap="onSelectEnvironment">
+                {{item.environment}}
+                <text wx:if="{{!item.available}}">（未配置）</text>
+            </button>
+        </view>
+        <text class="debug-page__environment-note"
+            >切换后自动返回首页；下次打开开发版继续使用所选环境。</text
+        >
     </view>
 
     <view class="debug-page__section">