feat: log export to Download

app/src/main/assets/h5/js/pages/settings.js

@@ -42,6 +42,10 @@ window.loadSettings = function () {
       <span class="arrow" id="check-update-state">›</span>
     </div>
     <div class="st-group">关于</div>
+    <div class="st-item" id="export-log-item">
+      <span class="lbl">导出日志</span>
+      <span class="arrow" id="export-log-state">›</span>
+    </div>
     <div class="st-item"><span class="lbl">版本 0.1.0</span><span class="arrow">›</span></div>
   </div>`;
   setupTheme(page);
@@ -51,6 +55,7 @@ window.loadSettings = function () {
   setupBrightness(page);
   setupServerUrl(page);
   setupCheckUpdate(page);
+  setupExportLog(page);
 };
 
 // 判断当前是否深色主题（与 mask.js 逻辑一致）
@@ -238,6 +243,21 @@ function setupCheckUpdate(page) {
   };
 }
 
+// 导出日志：点击导出到 Download，显示结果
+// Export log: tap to export to Download, show the result
+function setupExportLog(page) {
+  const item = page.querySelector('#export-log-item');
+  const state = page.querySelector('#export-log-state');
+  item.onclick = () => {
+    state.textContent = '导出中…';
+    bridge.call('exportLog').then(result => {
+      state.textContent = result + ' ›';
+    }).catch(() => {
+      state.textContent = '失败 ›';
+    });
+  };
+}
+
 // 通用滑块拖动：touch 拖动实时回调（保留 click 兼容桌面调试）
 // Generic draggable slider: touch-drag with live callback (click kept for desktop)
 function makeSliderDraggable(slider, onRatio) {