fix: rowid column shift in get_message_with_rowid; add file logging and frontend error reporting

ui/src/pages/SettingsPage.tsx

@@ -30,6 +30,19 @@ export default function SettingsPage() {
             <div>
               数据目录：<span className="text-slate-300">{info?.db_path}</span>
             </div>
+            <div className="flex items-center gap-2">
+              <span>
+                日志目录：<span className="text-slate-300">{info?.logs_dir}</span>
+              </span>
+              {info?.logs_dir ? (
+                <button
+                  className="text-xs text-slate-400 hover:text-slate-200"
+                  onClick={() => api.openPath(info.logs_dir!)}
+                >
+                  打开
+                </button>
+              ) : null}
+            </div>
             <div>
               引擎可用：
               {info?.engine_exists ? (
@@ -103,4 +116,3 @@ function SettingInput({
     </label>
   );
 }
-