fridge: fold the three Auto Door Open variant hrefs into one pattern cap (issue #328)

AUTO_DOOR_SINGLE/KIMCHI/WINECELLAR were identical one-line no-entity
Capability declarations differing only by href. Replaced with
AUTO_DOOR_VARIANT, a pattern cap keyed on href_prefix='/autodoor/' and
gated by match_fn (presence of ado.openOptions) rather than the prefix
alone, so it only claims the variant-declaration hrefs and not
/autodoor/timer/vs/0 -- which doesn't matter in practice anyway, since
that href's own exact-href AUTO_DOOR_TIMER cap always wins first.

Registry-scoped (refrigerator.py's own pattern_capabilities list), not
global ignored.py -- the unknown-device-type fallback that motivates
ignored.py's 'exact hrefs only' rule never reaches this registry, so the
same constraint doesn't apply. A fourth fridge sub-type reporting this
feature at a new href now needs no code change to stay covered.

tests/test_refrigerator_tp1x_ref_21k_autodoor_capabilities.py

@@ -3,7 +3,7 @@
 `/status/lock/vs/0`'s ado.devicecontrol switch was already modeled
 (STATUS_LOCK.auto_door_opener); this dump adds the paired voice-feedback
 toggle, the door-hold timer, and the per-variant capability declaration
-href -- see fridge.py's AUTO_DOOR_TIMER/AUTO_DOOR_SINGLE comments.
+href -- see fridge.py's AUTO_DOOR_TIMER/AUTO_DOOR_VARIANT comments.
 """
 
 from custom_components.localthings.registry.adapter import flatten
@@ -67,5 +67,8 @@ def test_auto_door_timer_reads_its_own_options():
 
 def test_auto_door_single_variant_href_bound_with_no_entities():
     """/autodoor/single/vs/0 only ever declares openOptions=['Single'] --
-    no paired current/desired field to expose, so it's coverage-only."""
-    assert fridge.AUTO_DOOR_SINGLE.entities == ()
+    no paired current/desired field to expose, so it's coverage-only via
+    the shared AUTO_DOOR_VARIANT pattern cap, not an entry of its own."""
+    assert fridge.AUTO_DOOR_VARIANT.entities == ()
+    _reg, resources = _fridge()
+    assert fridge.AUTO_DOOR_VARIANT.match_fn(resources["/autodoor/single/vs/0"], resources)

tests/test_refrigerator_tp1x_ref_21k_kimchi_capabilities.py

@@ -51,4 +51,6 @@ def test_auto_door_opener_present():
 
 
 def test_auto_door_kimchi_variant_href_bound_with_no_entities():
-    assert fridge.AUTO_DOOR_KIMCHI.entities == ()
+    assert fridge.AUTO_DOOR_VARIANT.entities == ()
+    _reg, resources = _fridge()
+    assert fridge.AUTO_DOOR_VARIANT.match_fn(resources["/autodoor/kimchi/vs/0"], resources)

tests/test_refrigerator_winecellar_capabilities.py

@@ -74,5 +74,7 @@ def test_winecellar_pantry_zone_mode_options_and_write():
 
 
 def test_winecellar_variant_and_info_hrefs_bound_with_no_entities():
-    assert fridge.AUTO_DOOR_WINECELLAR.entities == ()
+    assert fridge.AUTO_DOOR_VARIANT.entities == ()
     assert fridge.WINECELLAR_INFO.entities == ()
+    _reg, resources = _fridge()
+    assert fridge.AUTO_DOOR_VARIANT.match_fn(resources["/autodoor/winecellar/vs/0"], resources)