Add support for Samsung room air conditioners (ARTIK051_PRAC-class), the
first device whose core controls map onto a single Home Assistant `climate`
entity rather than a scatter of switches/selects/numbers.
- New `climate` platform + `ClimateDesc`: one composite entity that reads
power, HVAC mode, current/target temperature, fan (wind) strength, swing
(wind direction) and the convenient-mode preset across several OCF
resources and writes back to each. On/off folds into HVACMode.OFF /
TURN_ON/OFF; convenient mode folds into preset_mode. The entity binds one
primary resource (/mode/vs/0) and reads its siblings from the coordinator
snapshot, reusing the cross-resource read pattern from number/select.
- New `airconditioner` capability module + by_type registry, routed via the
`_PRAC_` modelNum token. Reuses common ALARMS/ENERGY_METER,
fridge.FIRMWARE_UPDATE and dishwasher.DIAGNOSIS; air purify and auto clean
as config switches; air dust filter status/usage as diagnostics (usage
normalized to a percentage of rated capacity).
- Climate-consumed and all-zero/ambiguous resources (temperature/wind,
/sensors, /humidity) are declared as AC-scoped coverage so every href in
the dump binds or is covered -- no coverage-gap repair.
- Fan/swing modes map onto HA standard constants (auto-localized); the
custom fan `turbo`, presets `quiet/smart/speed`, and the filter-status
enum get translations in strings.json + translations/en.json.
- Scrubbed fixture, golden, and tests: registry routing, zero unbound
hrefs, the climate write contract, and filter-% normalization.