优化日志

static/admin.html

@@ -55,6 +55,17 @@
         </div>
         <div class="hint" id="envKey"></div>
       </div>
+      <div class="field">
+        <label>日志模式</label>
+        <div class="input-wrap">
+          <select id="debugMode">
+            <option value="off">关闭</option>
+            <option value="simple">简易日志（仅控制台）</option>
+            <option value="verbose">详细日志（写入文件）</option>
+          </select>
+        </div>
+        <div class="hint">关闭：不输出调试日志；简易日志：仅控制台输出；详细日志：额外写入对话级文件日志，并对流式事件做采样截断。</div>
+      </div>
       <button class="btn btn-primary" onclick="saveSettings()">保存设置</button>
     </div>
 

static/admin.js

@@ -66,6 +66,7 @@ async function loadDashboard() {
     const s = await api('/api/admin/settings');
     document.getElementById('targetUrl').value = s.proxy_target_url || '';
     document.getElementById('proxyKey').value = s.proxy_api_key || '';
+    document.getElementById('debugMode').value = s.debug_mode || 'off';
     document.getElementById('envUrl').textContent = s.env_target_url ? '环境变量: ' + s.env_target_url : '';
     document.getElementById('envKey').textContent = s.env_api_key ? '环境变量: (已配置)' : '环境变量: (未设置)';
     await loadMappings();
@@ -130,6 +131,7 @@ async function saveSettings() {
       body: JSON.stringify({
         proxy_target_url: document.getElementById('targetUrl').value.trim(),
         proxy_api_key: document.getElementById('proxyKey').value.trim(),
+        debug_mode: document.getElementById('debugMode').value,
       }),
     });
     toast('设置已保存');