为基础示例接入按设备 ID 选择的力标定

让使用者从本地目录选标定并看见实际单位。短片回放及相关测试通过。

tools/downstream_sync_manifest.json

@@ -8,6 +8,12 @@
         {"from": "docs", "to": "docs", "include": ["get_started.md", "api.md"]},
         {"from": "examples", "to": "examples", "exclude": ["__pycache__", "*.pyc", "*.pyo"]},
         {"from": "config", "to": "config", "include": ["box.json", "finger.json", "mini.json"]},
+        {"from": "data/calibrations", "to": "data/calibrations", "include": [
+          ".gitignore",
+          "box/.gitkeep",
+          "mini/.gitkeep",
+          "finger/.gitkeep"
+        ]},
         {"from": "sensors", "to": "sensors", "include": [
           "box/sensor.json",
           "box/force_calibration.json",