Implement meeting assistant v1

MeetingAssistant/Recording/IRecordedAudioStore.cs

@@ -0,0 +1,19 @@
+namespace MeetingAssistant.Recording;
+
+public interface IRecordedAudioStore
+{
+    Task<IRecordedAudioSink> CreateSessionAsync(CancellationToken cancellationToken);
+
+    Task DeleteStaleRecordingsAsync(CancellationToken cancellationToken);
+}
+
+public interface IRecordedAudioSink : IAsyncDisposable
+{
+    string AudioPath { get; }
+
+    Task AppendAsync(AudioChunk chunk, CancellationToken cancellationToken);
+
+    Task CompleteAsync(CancellationToken cancellationToken);
+
+    Task DeleteAsync(CancellationToken cancellationToken);
+}