设置偏执距离

apps/autocal/config/locales/en_US.json

@@ -405,7 +405,7 @@
     "row_residual": "Alignment residual",
     "row_frames": "Frame mapping",
     "tool_xy": "Tool X / Y",
-    "tool_hint": "Where the tool is in the table frame, straight above the table origin by default. The table move is what carries the contact to this point. Measure it on the real setup.",
+    "tool_hint": "Where the tool is in the table frame. With Y at 3 mm, every point's table Y is the solved move plus 3 mm, so the sensor shell tail stays on the platform centre axis.",
     "sensor_xy": "Sensor X / Y",
     "sensor_zy": "Sensor Z / yaw",
     "setup_hint": "How the sensor actually sits on the stack with the machine at zero: X/Y/Z translation and a yaw about Z. Z is the mounting plate, shims included — there is no separate plate field. Measure it on the real setup.",

apps/autocal/config/locales/zh_CN.json

@@ -405,7 +405,7 @@
     "row_residual": "对齐残差",
     "row_frames": "坐标映射",
     "tool_xy": "刀具 X / Y",
-    "tool_hint": "刀具在工作台坐标系中的位置，默认在原点正上方；工作台的移动量就是把接触点送到此处所需的位移。请按实际安装测量填写。",
+    "tool_hint": "刀具在工作台坐标系中的位置。Y 为 3 mm 时，每个测点的工作台 Y 都会在解算结果上再加 3 mm，使传感器壳体尾部与平台原中心同轴。",
     "sensor_xy": "传感器 X / Y",
     "sensor_zy": "传感器 Z / yaw",
     "setup_hint": "传感器在转台零位时相对工作台原点的实际安装位姿：X/Y/Z 平移与绕 Z 的偏摆。Z 即安装板厚度（含垫片），无需另填。请按实际安装测量填写。",