registry: Lock, Color, ColorTemperature, Percentage, PowerLevel, Contact, Motion, Humidity

Eight descriptors written from their pages, each with its version, the value of its property and the payload of
every directive. Seven replace a stub; Alexa.HumiditySensor is new, as AlexaInterfaceType.HUMIDITY_SENSOR.
LockController is deferrable: defer() on a lock logs no warning.

A 1.x declaration of LockController, MotionSensor, PercentageController or PowerLevelController now lists its
property in discovery, where 1.5.2 listed none: the zoo's lock, motion sensor and heater come out as the JSON
Alexa accepted. A payload that does not fit (hue 361, 900 K) is answered with INVALID_VALUE.

48 examples of the eight pages are saved as fixtures. 191 tests pass, 168 before.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

test/fixtures/alexa-docs/alexa-powerlevelcontroller/ChangeReport.json

@@ -0,0 +1,42 @@
+{
+  "event": {
+    "header": {
+      "namespace": "Alexa",
+      "name": "ChangeReport",
+      "messageId": "Unique identifier, preferably a version 4 UUID",
+      "payloadVersion": "3"
+    },
+    "endpoint": {
+      "scope": {
+        "type": "BearerToken",
+        "token": "OAuth2.0 bearer token"
+      },
+      "endpointId": "Endpoint ID"
+    },
+    "payload": {
+      "change": {
+        "cause": {
+          "type": "PHYSICAL_INTERACTION"
+        },
+        "properties": [
+          {
+            "namespace": "Alexa.PowerLevelController",
+            "name": "powerLevel",
+            "value": 75,
+            "timeOfSample": "2024-05-01T09:32:05.05Z",
+            "uncertaintyInMilliseconds": 0
+          }
+        ]
+      }
+    }
+  },
+  "context": {
+    "namespace": "Alexa.EndpointHealth",
+    "name": "connectivity",
+    "value": {
+      "value": "OK"
+    },
+    "timeOfSample": "2024-05-01T09:25:45.25Z",
+    "uncertaintyInMilliseconds": 0
+  }
+}