Adds [tool.ruff] and [tool.ty] config to pyproject.toml with a curated
ruff rule set (E, F, W, I, UP, B, C4, SIM, RUF, ASYNC, LOG, G, PIE, RET,
PERF, N), pins ruff/ty in requirements-dev.txt, reformats the whole tree
with `ruff format`, and fixes the pre-existing lint and type-check debt
those tools surfaced so both run clean.
Production-code type fixes include: HA's ConfigFlowResult vs. the
generic FlowResult in config_flow.py, narrowing BoundEntity.desc to its
platform-specific subclass (SelectDesc/NumberDesc/SensorDesc/etc.) via
cast() instead of an unchecked annotation, converting HA device_class
strings to their proper enum types, a resolve_registry callback typed
as `object` instead of `DeviceRegistry | None`, and a couple of other
narrow correctness fixes (CA key type validation, an index-out-of-bounds
false positive from an empty-tuple fallback, a bool/dict argument swap).
Test-file fixes are mechanical: narrowing SamsungEntityDescription to
the correct subclass via isinstance()/cast() before accessing
subclass-only fields, and asserting Optional write_fn/unit_fn fields
are set before calling them.
The AY18CG7500GED dehumidifier (modelNum TP1X_DA_AC_DHM_01001_0000)
shares the DA_AC_ board family with the room-AC models but carries the
'_DHM_' token instead of '_RAC_'/'_PRAC_'/'_WAC_', so it fell into the
unknown-device-type fallback. Add a new dehumidifier registry, routed
via a '_DHM_' modelNum fallback rule, distinct from airconditioner
since target humidity (not temperature) is the primary control and
there's no climate composite.
Reuses airconditioner.py's AUTO_CLEAN/AIR_FILTER/MUTE_ONCE capabilities
directly (identical resource shapes on the shared board family). Adds
a new humidity sensor + target-humidity number pair and an
operating-mode select. Per the adding-device-support skill's
"never hard-code the one dump's values" rule, the target-humidity
number has no hardcoded min/max (falls back to HA's own 0-100 default
for a percentage field) and reads its step live from the device's own
`increment` field rather than a spec-sheet-derived constant. The
operating-mode select's options come live from supportedModes.
/mode/convenient/vs/0 is left unmodeled: only supportedModes is present
on this dump, with no live current-value field to confirm a read/write
contract.
Confirmed against the issue #88 diagnostics dump with zero unbound
hrefs. Updates the README's supported-appliance-types table for the
new device type.
Marc Billow