fix: entity translations were dead, and both validators disabled themselves

Entity._name_internal returns _attr_name before it ever consults
translation_key (homeassistant/helpers/entity.py:689). sensor.py and number.py
set both, so every entity.sensor.* and entity.number.* string added to
strings.json has been unreachable — the five sliders and five sensors rendered
English regardless of the user's language, bolted onto an integration that is
otherwise translated into 36. Dropping the three _attr_name assignments makes
the keys live; display_name was then a dead constructor parameter and goes too.

Two keys existed in strings.json but not translations/en.json (ambient_lux,
lux_reduction) and ramp_half_width was in neither, so a bare deletion would
have left three entities unnamed. Added them to both files.

ambient_lux carries unit lx and is textbook SensorDeviceClass.ILLUMINANCE; it
was inheriting the class-level _attr_device_class = None along with the four
curve outputs that genuinely have no equivalent. Without it the sensor loses
standard icon, unit handling and long-term-statistics grouping. Now a per-key
lookup, so the outputs keep their honest None.

The five number entities are behaviour knobs, not state — EntityCategory.CONFIG
moves them off the primary device page.

Both validate.yml and hassfest.yaml carried `schedule: cron "0 0 * * *"`, and
GitHub auto-disables any workflow with a schedule after 60 days of repository
inactivity. Both were taken out on 2026-09-08, 60 days after the last push. A
disabled workflow also stops answering push and pull_request, so this repo now
has no HACS or hassfest validation at all. Removing the cron is the durable
fix; re-enabling in the UI just restarts the same clock.

README claimed the tanh ramp has "a fixed 30-minute half-width" 60 lines above
documenting the live 5-120 min slider that replaced it.

164 tests pass, ruff clean.

.github/workflows/hassfest.yaml

@@ -4,9 +4,11 @@ on:
   push:
     branches: [main, master]
   pull_request:
-  schedule:
-    - cron: "0 0 * * *"
   workflow_dispatch:
+  # No schedule: GitHub auto-disables any workflow containing one after 60
+  # days of repository inactivity, and a disabled workflow stops answering
+  # push and pull_request too. Both of this repo's validators were taken
+  # out that way on 2026-09-08.
 
 jobs:
   validate_hassfest:

.github/workflows/validate.yml

@@ -4,9 +4,11 @@ on:
   push:
     branches: [main, master]
   pull_request:
-  schedule:
-    - cron: "0 0 * * *"
   workflow_dispatch:
+  # No schedule: GitHub auto-disables any workflow containing one after 60
+  # days of repository inactivity, and a disabled workflow stops answering
+  # push and pull_request too. Both of this repo's validators were taken
+  # out that way on 2026-09-08.
 
 jobs:
   validate_hacs: