Implement UI for managing multiple models (#24023)

* Implement hardware detection and UI management

* Cleanup Frigate+ detection

* Don't count model as changed

* Fixes for audio map error

* Add descriptions

* Enforce that all model must exist

* Fix hardware picking

* Docs fixes

* WebUI cleanup

* Cleanup handling of scenes

* UI refinement

* Cleanup recommended UI

* test fixews

frigate/test/http_api/test_http_audio_labels.py

@@ -0,0 +1,55 @@
+"""Tests for the audio labels API."""
+
+import unittest
+from unittest.mock import patch
+
+from frigate.models import Event
+from frigate.test.http_api.base_http_test import AuthTestClient, BaseTestHttp
+
+
+class TestHttpAudioLabels(BaseTestHttp):
+    def setUp(self):
+        super().setUp([Event])
+
+    def _labels(self, config: dict | None = None) -> dict[str, str]:
+        if config:
+            self.minimal_config.update(config)
+
+        app = self.create_app()
+
+        with patch(
+            "frigate.api.app.load_labels", return_value={0: "speech", 1: "bark"}
+        ):
+            with AuthTestClient(app) as client:
+                response = client.get("/audio_labels")
+
+        self.assertEqual(response.status_code, 200)
+        return response.json()
+
+    def test_the_default_labels_are_returned(self):
+        self.assertEqual(self._labels(), {"0": "speech", "1": "bark"})
+
+    def test_a_global_labelmap_override_is_offered(self):
+        # grouping several classes under one label makes that label selectable
+        labels = self._labels({"audio": {"labelmap": {0: "noise", 1: "noise"}}})
+
+        self.assertEqual(set(labels.values()), {"noise"})
+
+    def test_a_camera_labelmap_override_is_offered(self):
+        labels = self._labels(
+            {
+                "cameras": {
+                    "front_door": {
+                        **self.minimal_config["cameras"]["front_door"],
+                        "audio": {"labelmap": {1: "dogs"}},
+                    }
+                }
+            }
+        )
+
+        self.assertEqual(labels["1"], "dogs")
+        self.assertEqual(labels["0"], "speech")
+
+
+if __name__ == "__main__":
+    unittest.main(verbosity=2)