feat: LoTW confirmed-grids sync card — fetch confirmed QSO grids directly from ARRL LoTW (lotwreport.adi) and merge with Wavelog grids; credentials stored locally

core/presentation/src/main/res/values-zh/strings.xml

@@ -148,6 +148,13 @@
     <string name="prefs_wavelog_hint">已同步网格数：%1$d。格式：API key:日志ID。请先保存，再点同步。</string>
     <string name="prefs_wavelog_sync">立即同步</string>
     <string name="prefs_wavelog_syncing">同步中…</string>
+    <string name="prefs_lotw_title">LoTW 已确认网格</string>
+    <string name="prefs_lotw_callsign">LoTW 呼号</string>
+    <string name="prefs_lotw_password">LoTW 密码</string>
+    <string name="prefs_lotw_hint">直接从 ARRL LoTW 拉取已确认 QSO 的网格并与 Wavelog 网格合并（当前 %1$d 个）。密码仅保存在手机本地。请先保存，再点同步。</string>
+    <string name="prefs_lotw_sync">立即同步</string>
+    <string name="prefs_lotw_syncing">同步中…</string>
+    <string name="prefs_lotw_not_configured">未配置 — 直接登录 ARRL LoTW 拉取已确认 QSO 的网格，无需自建服务器</string>
     <string name="prefs_locator_text">使用梅登黑德网格设置站点位置</string>
 
     <string name="prefs_data_title">卫星数据更新</string>

core/presentation/src/main/res/values/strings.xml

@@ -183,6 +183,13 @@
     <string name="prefs_wavelog_hint">Worked grids synced: %1$d. Format: API key, colon, logbook ID. Save first, then tap Sync.</string>
     <string name="prefs_wavelog_sync">Sync now</string>
     <string name="prefs_wavelog_syncing">Syncing…</string>
+    <string name="prefs_lotw_title">LoTW confirmed grids</string>
+    <string name="prefs_lotw_callsign">LoTW callsign</string>
+    <string name="prefs_lotw_password">LoTW password</string>
+    <string name="prefs_lotw_hint">Fetch confirmed-QSO grids directly from ARRL LoTW and merge them with Wavelog grids (currently %1$d). The password is stored on this device only. Save first, then tap Sync.</string>
+    <string name="prefs_lotw_sync">Sync now</string>
+    <string name="prefs_lotw_syncing">Syncing…</string>
+    <string name="prefs_lotw_not_configured">Not configured — pull confirmed grids directly from ARRL LoTW, no self-hosted server needed</string>
     <string name="prefs_locator_text">Set station\'s position using locator</string>
 
     <string name="prefs_data_title">Satellite data</string>