chore(panel): 删除未使用的 ServerCard 与恢复控件的卡片布局分支，恢复注释改为按行可选任一未过期备份，mock 补上备份任务与立即备份路由

panel/src/i18n/resources/en-US/backups.json

@@ -47,18 +47,14 @@
   "restore_confirm_yes": "Confirm restore",
   "restore_confirm_yes_unsafe": "Overwrite and restore",
   "cancel": "Cancel",
-  "restore_started": "Restore started — the world is being rebuilt from this backup. Wake the server once it finishes to see the restored world.",
-  "restore_snapshot_started": "Taking a safety snapshot of the current world — the chosen backup is restored automatically once it finishes; follow it under recent operations below. Wake the server once the restore finishes.",
   "restore_started_short": "Restore started",
   "restore_snapshot_started_short": "Snapshot, then restore",
   "stopping": "Stopping the server…",
   "restoring": "Restoring…",
   "stop_timeout": "The server did not stop in time. Close this window and try again shortly.",
-  "expired_cannot_restore": "This backup has expired and can no longer be restored.",
   "corrupt_badge": "Corrupt",
   "corrupt_hint": "A read-back found this archive no longer matches what was written, so it can't be restored intact. It stays listed until it expires so the loss is visible.",
   "corrupt_short": "Corrupt",
-  "corrupt_cannot_restore": "This backup failed its read-back check and can't be restored — pick another backup.",
   "verified_at": "Verified {{when}}",
   "skipped_entries_one": "{{count}} entry not archived",
   "skipped_entries_other": "{{count}} entries not archived",

panel/src/i18n/resources/zh-CN/backups.json

@@ -47,18 +47,14 @@
   "restore_confirm_yes": "确认恢复",
   "restore_confirm_yes_unsafe": "直接覆盖并恢复",
   "cancel": "取消",
-  "restore_started": "已开始恢复备份——正在用此备份重建世界。完成后启动服务器即可看到恢复后的世界。",
-  "restore_snapshot_started": "已开始为当前世界做安全快照——快照完成后会自动用所选备份恢复，进度见下方“最近操作”。恢复完成后启动服务器即可看到恢复后的世界。",
   "restore_started_short": "已启动恢复",
   "restore_snapshot_started_short": "快照中，随后恢复",
   "stopping": "正在停止服务器……",
   "restoring": "正在恢复备份……",
   "stop_timeout": "服务器停止超时。请关闭此窗口，稍后重试。",
-  "expired_cannot_restore": "此备份已过期，无法恢复。",
   "corrupt_badge": "已损坏",
   "corrupt_hint": "回读校验发现这份归档与写入时不一致，已无法完整恢复。它会保留到过期，方便排查。",
   "corrupt_short": "已损坏",
-  "corrupt_cannot_restore": "这份备份回读校验未通过，无法恢复，请选择另一份备份。",
   "verified_at": "{{when}}已校验",
   "skipped_entries": "{{count}} 个条目未归档",
   "skipped_entries_hint": "世界目录里有符号链接等非普通文件，归档时跳过了它们，恢复后这些条目不会存在。",