registry: SecurityPanelController with Arm.Response and its errors

Alexa.SecurityPanelController is described from its page: version 3 (the stub of 1.5.2 said 1), armState and the
four alarms, Arm and Disarm. ctx.respond() answers Arm with Arm.Response under the namespace of the interface,
its payload checked (exitDelayInSeconds 0 to 255, bypassedEndpoints), and Disarm with a Response. A Disarm
carries the PIN the user said when the panel is declared with supportedAuthorizationTypes; the handler checks
it and answers UNAUTHORIZED, which goes under Alexa.SecurityPanelController like the five other error types.

A panel declared without options lists armState, where 1.5.2 listed no property; alarms are declared.
17 examples of the two pages are saved as fixtures. 215 tests pass, 207 before.

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

test/fixtures/alexa-docs/alexa-securitypanelcontroller/Arm-alarm.response.json

@@ -0,0 +1,50 @@
+{
+  "event": {
+    "header": {
+      "namespace": "Alexa.SecurityPanelController",
+      "name": "Arm.Response",
+      "messageId": "Unique identifier, preferably a version 4 UUID",
+      "correlationToken": "Opaque correlation token that matches the request",
+      "payloadVersion": "3"
+    },
+    "endpoint": {
+      "scope": {
+        "type": "BearerToken",
+        "token": "OAuth2.0 bearer token"
+      },
+      "endpointId": "Endpoint ID"
+    },
+    "payload": {
+      "exitDelayInSeconds": 60
+    }
+  },
+  "context": {
+    "properties": [
+      {
+        "namespace": "Alexa.SecurityPanelController",
+        "name": "burglaryAlarm",
+        "value": {
+          "value": "ALARM"
+        },
+        "timeOfSample": "2024-07-03T10:20:50.52Z",
+        "uncertaintyInMilliseconds": 0
+      },
+      {
+        "namespace": "Alexa.SecurityPanelController",
+        "name": "armState",
+        "value": "ARMED_AWAY",
+        "timeOfSample": "2024-07-03T10:20:50.52Z",
+        "uncertaintyInMilliseconds": 0
+      },
+      {
+        "namespace": "Alexa.EndpointHealth",
+        "name": "connectivity",
+        "value": {
+          "value": "OK"
+        },
+        "timeOfSample": "2024-07-03T09:55:05.52Z",
+        "uncertaintyInMilliseconds": 0
+      }
+    ]
+  }
+}