fix: Improve 2-way audio detection (#2293)

- For Frigate cameras, you must be running at least [integration
v5.12.0](https://github.com/blakeblackshear/frigate-hass-integration/releases/tag/v5.12.0).
 - Closes: #2191 

Includes a significant refactor of cameras, and the introduction of a
`2-way-audio` capability that is dynamically fetched from `go2rtc`. One
gotcha is if you previously had a substream with 2-way audio, you may
need to modify

```yaml
 - camera_entity: camera.foo
    capabilities:
      disable_except:
        - substream
```

... to ...

```yaml
 - camera_entity: camera.foo
    capabilities:
      disable_except:
        - substream
        - 2-way-audio
```

tests/camera-manager/utils/go2rtc-endpoint.test.ts

@@ -1,11 +1,14 @@
 import { describe, expect, it } from 'vitest';
-import { getDefaultGo2RTCEndpoint } from '../../../src/camera-manager/utils/go2rtc-endpoint.js';
+import {
+  getGo2RTCMetadataEndpoint,
+  getGo2RTCStreamEndpoint,
+} from '../../../src/camera-manager/utils/go2rtc/endpoint.js';
 import { createCameraConfig } from '../../test-utils.js';
 
-describe('getDefaultGo2RTCEndpoint', () => {
+describe('getGo2RTCStreamEndpoint', () => {
   it('with local configuration', () => {
     expect(
-      getDefaultGo2RTCEndpoint(
+      getGo2RTCStreamEndpoint(
         createCameraConfig({
           go2rtc: {
             stream: 'stream',
@@ -21,7 +24,7 @@ describe('getDefaultGo2RTCEndpoint', () => {
 
   it('with remote configuration', () => {
     expect(
-      getDefaultGo2RTCEndpoint(
+      getGo2RTCStreamEndpoint(
         createCameraConfig({
           go2rtc: {
             stream: 'stream',
@@ -36,6 +39,45 @@ describe('getDefaultGo2RTCEndpoint', () => {
   });
 
   it('without configuration', () => {
-    expect(getDefaultGo2RTCEndpoint(createCameraConfig())).toBeNull();
+    expect(getGo2RTCStreamEndpoint(createCameraConfig())).toBeNull();
+  });
+});
+
+describe('getGo2RTCMetadataEndpoint', () => {
+  it('with local configuration', () => {
+    expect(
+      getGo2RTCMetadataEndpoint(
+        createCameraConfig({
+          go2rtc: {
+            stream: 'stream',
+            url: '/local/path',
+          },
+        }),
+      ),
+    ).toEqual({
+      endpoint: '/local/path/api/streams?src=stream&video=all&audio=all&microphone',
+      sign: true,
+    });
+  });
+
+  it('with remote configuration', () => {
+    expect(
+      getGo2RTCMetadataEndpoint(
+        createCameraConfig({
+          go2rtc: {
+            stream: 'stream',
+            url: 'https://my-custom-go2rtc',
+          },
+        }),
+      ),
+    ).toEqual({
+      endpoint:
+        'https://my-custom-go2rtc/api/streams?src=stream&video=all&audio=all&microphone',
+      sign: false,
+    });
+  });
+
+  it('without configuration', () => {
+    expect(getGo2RTCMetadataEndpoint(createCameraConfig())).toBeNull();
   });
 });