feat: enhance audio playback features and UI, including audio player dialog and improved file size handling

src/EchoHub.Client/Services/AudioPlaybackService.cs

@@ -8,6 +8,14 @@ public class AudioPlaybackService
     private readonly Player _player = new();
 
     public bool IsPlaying => _player.Playing;
+    public bool IsPaused => _player.Paused;
+
+    public event EventHandler? PlaybackFinished;
+
+    public AudioPlaybackService()
+    {
+        _player.PlaybackFinished += (s, e) => PlaybackFinished?.Invoke(this, EventArgs.Empty);
+    }
 
     public async Task PlayAsync(string filePath)
     {
@@ -24,6 +32,32 @@ public class AudioPlaybackService
         }
     }
 
+    public async Task PauseAsync()
+    {
+        try
+        {
+            if (_player.Playing && !_player.Paused)
+                await _player.Pause();
+        }
+        catch (Exception ex)
+        {
+            Log.Warning(ex, "Failed to pause audio playback");
+        }
+    }
+
+    public async Task ResumeAsync()
+    {
+        try
+        {
+            if (_player.Paused)
+                await _player.Resume();
+        }
+        catch (Exception ex)
+        {
+            Log.Warning(ex, "Failed to resume audio playback");
+        }
+    }
+
     public async Task StopAsync()
     {
         try
@@ -36,4 +70,16 @@ public class AudioPlaybackService
             Log.Warning(ex, "Failed to stop audio playback");
         }
     }
+
+    public async Task SetVolumeAsync(byte volume)
+    {
+        try
+        {
+            await _player.SetVolume(Math.Min(volume, (byte)100));
+        }
+        catch (Exception ex)
+        {
+            Log.Warning(ex, "Failed to set audio volume");
+        }
+    }
 }