Bumps:
- rotatingMachine 455f15d refactor: route unit conversions through UnitPolicy.convert
- pumpingStation 2d68a4f refactor + fix(level): UnitPolicy adoption, level-rate timestamp fix, integration test rewire
- machineGroupControl ddf2b07 refactor: _canonicalToOutputFlow + setDemand via UnitPolicy.convert, structure test rewire
- generalFunctions bc79de1 fix(influx): accept tagCode camelCase + emit positionVsParent tag
- measurement 36eaa2f test(edge): align with object-payload accept behaviour
The UnitPolicy bump finishes the §6 contract migration the refactor
plan named (drop _convertUnitValue / hardcoded m3/h<->m3/s scalars in
favour of policy.convert at every site).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>