cd D:\orisys_ws\orisys-app

git add apps/studio/config/locales/zh_CN.json `
        apps/studio/config/locales/en_US.json `
        apps/studio/tests/test_locales.py `
        apps/studio/tools/ui_check.py `
        apps/studio/tests/test_ui_smoke.py `
        apps/studio/src/orisys_studio/app_window.py `
        apps/studio/src/orisys_studio/ui/cal_panel.py `
        apps/studio/src/orisys_studio/ui/playback_dialog.py `
        apps/studio/src/orisys_studio/ui/force_plots.py `
        apps/studio/docs/record-channel.md `
        shared/src/orisys_app_shared/force/calibration_recorder.py `
        shared/src/orisys_app_shared/record/__init__.py `
        shared/src/orisys_app_shared/record/playback.py `
        shared/src/orisys_app_shared/record/depth.py `
        shared/tests/test_record_channel.py `
        shared/tests/test_playback.py

apps/studio/config/locales/zh_CN.json

@@ -13,6 +13,8 @@
     "file": "文件",
     "open_video": "打开视频…",
     "reveal_config": "在资源管理器中显示配置…",
+    "playback": "打开录制回放…",
+    "playback_latest": "回放最近一次录制",
     "view": "视图",
     "theme": "主题",
     "theme_dark": "深色",
@@ -121,7 +123,38 @@
     "preset_2d": "已切换到二维模式：左侧深度图、右侧三轴曲线，共用时间轴",
     "preset_default": "已恢复自由布局"
   },
-  "record": {    "label": "记录",
+  "playback": {
+    "title": "录制回放",
+    "open": "打开录制目录…",
+    "open_failed": "无法打开该录制: {error}",
+    "none_found": "outputs/recordings 下没有找到录制",
+    "loaded": "{name} — {frames} 帧 / {duration} s",
+    "empty": "选择一个录制目录开始回放",
+    "position": "{position} / {duration} s",
+    "show_newton": "显示牛顿值",
+    "show_raw": "显示原始值",
+    "recompute_depth": "重算深度",
+    "recompute_depth_tip": "深度未随录制保存，按录像与配置离线重算当前帧",
+    "frame_dropped": "该帧未被写入视频（记录队列曾溢出）",
+    "frame_unreadable": "该帧无法从视频中解码",
+    "depth_hint": "深度未存储：点击「重算深度」按原视频与配置离线重算",
+    "depth_running": "正在重算深度…（在后台线程）",
+    "depth_busy": "上一次重算尚未完成",
+    "depth_empty": "该帧没有深度数据",
+    "depth_failed": "深度重算失败: {detail}",
+    "depth_sdk_unavailable": "无法重算：SDK 不可用",
+    "depth_config_missing": "无法重算：录制未记录传感器配置",
+    "depth_config_file_missing": "无法重算：配置文件的原始路径已不存在",
+    "depth_no_video": "无法重算：该录制没有视频分段",
+    "warnings": "回放提示: {detail}",
+    "warn_config_changed": "配置文件与录制时不一致，重算出的深度可能与当时不同",
+    "warn_sdk_changed": "SDK 版本与录制时不一致，重算结果可能不同",
+    "warn_config_missing": "找不到配置哈希，无法校验重算一致性",
+    "warn_depth_recomputed": "深度由离线重算得到，不是当时保存的数据",
+    "warn_rows_skipped": "有无法解析的 CSV 行被跳过"
+  },
+  "record": {
+    "label": "记录",
     "mode_video_data": "视频 + 数据",
     "mode_data_only": "仅数据",
     "mode_tip": "视频记录的是处理前的相机输入图像（不含箭头与文字叠加）。MP4 是有损封装，不等于无损原始数据。",