0.4.2

No breaking API changes. Fully backward-compatible with 0.4.x.

Fixed

• More number readings were truncated to whole units (follow-up to #352).
  The same int() truncation as the Twinguard temperature also affected three
  fields the local API types as number:

  • AirQualityLevelService.humidity (Twinguard) — was inconsistent with
    HumidityLevelService.humidity, which already returns float.
  • AirQualityLevelService.purity (Twinguard).
  • ValveTappetService.position (Thermostat II valve tappet).

  All three now return the full float; the matching model properties
  (SHCTwinguard.humidity/purity, valve position) changed int → float.
  This restores decimal resolution in the recorder/long-term statistics
  (the HA sensors display these rounded, so the visible value is unchanged).