feat: expose per-attribute manual-control state (#1469)

Adds two new read-only state attributes on the AdaptiveSwitch entity:

- manual_control_brightness: list of light entity_ids whose brightness
  axis is currently in manual override (i.e. AL is paused for brightness
  on those lights).
- manual_control_color: same, for the color axis.

These mirror the existing 'manual_control' attribute (which is a
union of both axes) but expose the LightControlAttributes bitfield
that AL already tracks internally per-light.

Why: the existing 'manual_control' state attribute and the
adaptive_lighting.manual_control event are useful, but neither lets
a template or dashboard see which axis is paused without subscribing
to events. This is especially important with take_over_control_mode:
pause_changed, where one axis can be manual while the other still
adapts. Now a Lovelace card or template sensor can display
brightness/color manual state directly via state_attr().

Test: extends test_manual_control to assert the new attributes
reflect the bitfield correctly.

No new platform, no breaking changes.

Co-authored-by: Bas Nijholt <basnijholt@gmail.com>

custom_components/adaptive_lighting/switch.py

@@ -1151,6 +1151,18 @@ class AdaptiveSwitch(SwitchEntity, RestoreEntity):
         extra_state_attributes["manual_control"] = [
             light for light in self.lights if self.manager.manual_control.get(light)
         ]
+        extra_state_attributes["manual_control_brightness"] = [
+            light
+            for light in self.lights
+            if self.manager.manual_control.get(light, LightControlAttributes.NONE)
+            & LightControlAttributes.BRIGHTNESS
+        ]
+        extra_state_attributes["manual_control_color"] = [
+            light
+            for light in self.lights
+            if self.manager.manual_control.get(light, LightControlAttributes.NONE)
+            & LightControlAttributes.COLOR
+        ]
         extra_state_attributes.update(self._settings)
         timers = self.manager.auto_reset_manual_control_timers
         extra_state_attributes["autoreset_time_remaining"] = {