v2026.6.3

Added

• Support for the HU4209/00 (Philips Evaporative Humidifier Series 4000).
  It uses Gen3 CoAP and reuses the HU1509/HU1510 preset and speed mappings,
  differing only by the absence of ambient light mode
  (#63).
• Support for the AC2210 family (PureProtect Quiet 2200 series, e.g.
  AC2210/10) by reusing the AC2221 device configuration; previously these
  devices were detected but rejected with model_unsupported
  (#59).