fix(backup): add user-state backup UI and storage

locales/zh-TW.json

@@ -263,6 +263,7 @@
             "videoSettings": "影片設定",
             "layoutSettings": "版面設定",
             "misc": "其他",
+            "backup": "備份",
             "folderSettings": "預設根目錄",
             "recipeSettings": "配方",
             "extraFolderPaths": "額外資料夾路徑",
@@ -324,6 +325,31 @@
                 "saveFailed": "無法儲存跳過路徑：{message}"
             }
         },
+        "backup": {
+            "autoEnabled": "自動備份",
+            "autoEnabledHelp": "每天建立一次本地快照，並依保留政策保留最新快照。",
+            "retention": "保留數量",
+            "retentionHelp": "在刪除舊快照之前，要保留多少自動快照。",
+            "management": "備份管理",
+            "managementHelp": "匯出目前的使用者狀態，或從備份封存中還原。",
+            "locationSummary": "目前備份位置",
+            "openFolderButton": "開啟備份資料夾",
+            "openFolderSuccess": "已開啟備份資料夾",
+            "openFolderFailed": "無法開啟備份資料夾",
+            "locationCopied": "備份路徑已複製到剪貼簿：{{path}}",
+            "locationClipboardFallback": "備份路徑：{{path}}",
+            "exportButton": "匯出備份",
+            "exportSuccess": "備份匯出成功。",
+            "exportFailed": "備份匯出失敗：{message}",
+            "importButton": "匯入備份",
+            "importConfirm": "要匯入此備份並覆寫本機使用者狀態嗎？",
+            "importSuccess": "備份匯入成功。",
+            "importFailed": "備份匯入失敗：{message}",
+            "latestSnapshot": "最近快照",
+            "latestAutoSnapshot": "最近自動快照",
+            "snapshotCount": "已儲存快照",
+            "noneAvailable": "目前還沒有快照"
+        },
         "downloadSkipBaseModels": {
             "label": "跳過這些基礎模型的下載",
             "help": "適用於所有下載流程。這裡只能選擇受支援的基礎模型。",