Add mock data and unit tests for Channels and Members APIs

test/mocks/Channel.ts

@@ -0,0 +1,11 @@
+export const mockChannel = {
+  channelId: 'some-region#some-application-id#some-channel-name.s3bS4Udv1y5G',
+  alias: 'some-channel-name',
+  name: 'some-channel-name',
+  description: 'some-channel-description',
+  type: 'default',
+  options: [],
+  streamKey: '2GKJt4TP9vrJuHFhJNRm5lUJ1tGHW5LUXWWGlvz1L7S9PHVFGql82sOPI1AxbDQUeGZALVG3DuJAs63IC7agZEyljEIPM1a3b4',
+  created: '2024-01-01',
+  lastUpdated: '2024-01-01'
+};

test/mocks/Member.ts

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+export const mockMember = {
+  sessionId: 'session-123',
+  screenName: 'Test User',
+  role: 'Presenter',
+  streams: [
+    {
+      type: 'video',
+      uri: 'pcast://example.com/stream-id-123',
+      audioState: 'active',
+      videoState: 'active'
+    }
+  ],
+  state: 'active',
+  lastUpdate: Date.now()
+};