Add meeting assistant speech and summary automation

MeetingAssistant/Transcription/FunAsrStreamingTranscriptionProvider.cs

@@ -26,10 +26,11 @@ public sealed class FunAsrStreamingTranscriptionProvider : IStreamingTranscripti
 
     public async IAsyncEnumerable<TranscriptionSegment> TranscribeAsync(
         IAsyncEnumerable<AudioChunk> audio,
+        SpeechRecognitionPipelineOptions options,
         [System.Runtime.CompilerServices.EnumeratorCancellation] CancellationToken cancellationToken)
     {
         var segments = Channel.CreateUnbounded<TranscriptionSegment>();
-        var session = Task.Run(() => RunSessionAsync(audio, segments.Writer, cancellationToken), CancellationToken.None);
+        var session = Task.Run(() => RunSessionAsync(audio, options, segments.Writer, cancellationToken), CancellationToken.None);
 
         await foreach (var segment in segments.Reader.ReadAllAsync(cancellationToken))
         {
@@ -41,6 +42,7 @@ public sealed class FunAsrStreamingTranscriptionProvider : IStreamingTranscripti
 
     private async Task RunSessionAsync(
         IAsyncEnumerable<AudioChunk> audio,
+        SpeechRecognitionPipelineOptions pipelineOptions,
         ChannelWriter<TranscriptionSegment> segments,
         CancellationToken cancellationToken)
     {
@@ -61,7 +63,7 @@ public sealed class FunAsrStreamingTranscriptionProvider : IStreamingTranscripti
             var finalReceived = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously);
             var receiveTask = ReceiveAsync(connection, parser, segments, finalReceived, cancellationToken);
 
-            await SendStartAsync(connection, firstChunk, cancellationToken);
+            await SendStartAsync(connection, firstChunk, pipelineOptions.DictationWords, cancellationToken);
             await connection.SendBinaryAsync(firstChunk.Pcm, cancellationToken);
 
             while (await enumerator.MoveNextAsync())
@@ -139,6 +141,7 @@ public sealed class FunAsrStreamingTranscriptionProvider : IStreamingTranscripti
     private async Task SendStartAsync(
         IFunAsrWebSocketConnection connection,
         AudioChunk firstChunk,
+        IReadOnlyList<string>? dictationWords,
         CancellationToken cancellationToken)
     {
         var message = new Dictionary<string, object?>
@@ -152,24 +155,17 @@ public sealed class FunAsrStreamingTranscriptionProvider : IStreamingTranscripti
             ["wav_name"] = options.FunAsr.WavName,
             ["wav_format"] = "pcm",
             ["is_speaking"] = true,
-            ["hotwords"] = await LoadHotwordsAsync(cancellationToken),
+            ["hotwords"] = BuildHotwords(dictationWords),
             ["itn"] = options.FunAsr.Itn
         };
 
         await connection.SendTextAsync(JsonSerializer.Serialize(message), cancellationToken);
     }
 
-    private async Task<string> LoadHotwordsAsync(CancellationToken cancellationToken)
+    internal static string BuildHotwords(IReadOnlyList<string>? dictationWords)
     {
-        var path = VaultPath.Resolve(options.Vault.DictationWordsPath);
-        if (!File.Exists(path))
-        {
-            return "";
-        }
-
-        var words = await File.ReadAllLinesAsync(path, cancellationToken);
-        var hotwords = words
-            .Select(line => line.Trim().TrimStart('-', '*').Trim())
+        var hotwords = (dictationWords ?? [])
+            .Select(word => word.Trim())
             .Where(line => !string.IsNullOrWhiteSpace(line))
             .Distinct(StringComparer.OrdinalIgnoreCase)
             .ToDictionary(word => word, _ => 20);