Dreo DR-HHM005S humidifier

Summary This is a rebased and test-fixed version of PR #490 by @JulianPinzaru. ## Original PR Changes - Adds model definition for DR-HHM005S with correct mode mapping (auto=1, manual=0, sleep=2) - Adds Fog Level and Sleep Target Humidity as Number entities for humidifiers - Adds display_light and rgb_indicator switch support for humidifiers - New constants: \FOG_LEVEL_KEY\, \TARGET_SLEEP_HUMIDITY_KEY\, \LED_LEVEL_KEY\ ## Fixes Applied - Rebased onto latest main - Updated integration tests for HHM001S, HHM003S, HHM015S, and HHM006S to expect the new Fog Level and Sleep Target Humidity number …

Excerpt saved from GitHub on 2026-10-23.

Summary This PR adds full support for the Dreo HM735S smart humidifier (`DR-HHM005S`). It includes: - support for the HM735S RGB night-light control path - proper handling of the humidifier-specific `rgbmode` / `rgb_color` directive dialect - correct RGB off-state handling for devices where `rgb_color=0` represents physical off - a dedicated Sleep mode switch entity - README updates to list `DR-HHM005S` as a supported humidifier ## Why this is needed `DR-HHM005S` does not behave like the existing ambient-light fan/HEC devices. Its light state is exposed through humidifier-specific directives, …

Excerpt saved from GitHub on 2026-10-23.