实现 finger 单测点手动试验采集

将精确 UV 选点、实时预览与逐档人工确认接入同一页面，并保存每次试验的视频、事件和帧采集时间。通过离线视频、页面及记录回归测试。

apps/autocal/config/locales/zh_CN.json

@@ -224,7 +224,7 @@
     "tab_axes": "轴调试",
     "tab_sequence": "测试序列",
     "tab_finger": "手指调试",
-    "tab_sensor": "传感器",
+    "tab_sensor": "标定采集",
     "tab_surface": "表面分布",
     "tab_points": "标定点",
     "not_built": "尚未实现",
@@ -244,7 +244,7 @@
     "stop": "停止",
     "idle": "请选择输入来源和 sensor.json",
     "no_frame": "等待处理后的画面",
-    "preview_only": "此页用于检查输入画面；标定事件记录尚未接通。",
+    "preview_only": "先在选择测点页确定 U/V，再在此检查实时二维 UV 图像并开始试验记录。",
     "choose_video": "选择 Finger 视频",
     "choose_config": "选择 sensor.json",
     "video_filter": "视频文件 (*.mp4 *.avi *.mov *.mkv);;所有文件 (*)",
@@ -262,6 +262,40 @@
     "basis_unknown": "读取时间（来源未确认）",
     "frame": "帧 {frame} · 源帧 {source_frame} · {basis} {time} · 丢帧 {dropped}"
   },
+  "calibration": {
+    "sensor_sn": "传感器 SN",
+    "output": "保存目录",
+    "site_view": "选择测点",
+    "live_view": "实时二维 UV 图像",
+    "uv": "U / V (px)",
+    "position": "网格坐标",
+    "levels": "加载档位 (N)",
+    "hold": "建议保持",
+    "reference": "实际参考力 (N)",
+    "start": "开始记录",
+    "confirm": "确认到档",
+    "finish": "结束试验",
+    "abort": "中止并保留",
+    "load": "加载",
+    "unload": "卸载",
+    "next_step": "下一档：{branch}至 {load:g} N",
+    "no_step": "无待确认档位",
+    "progress": "进度 {done}/{total} · {status}",
+    "held": " · 当前档已保持 {seconds:.1f} s",
+    "source_state": "输入：{status} · 帧 {frame} · 采集丢帧 {dropped}",
+    "replay_note": "视频重放仅用于调试；本次人工参考力不能与原实验时间同步。",
+    "idle": "未开始",
+    "recording": "记录中",
+    "closing": "正在写盘",
+    "complete": "已完成",
+    "incomplete": "未完成",
+    "result": "{status}：{path}",
+    "error": "操作失败：{detail}",
+    "invalid_site": "请先选择有效的 UV 测点",
+    "start_input": "请先启动相机或视频输入",
+    "reference_required": "请输入实际参考力",
+    "output_required": "请选择保存目录"
+  },
   "finger": {
     "title": "手指标定点调试",
     "bundle_path": "导出包",