fix: address talk streaming build

apps/macos/Sources/Clawdis/TalkModeRuntime.swift

@@ -500,7 +500,7 @@ actor TalkModeRuntime {
             if let apiKey, !apiKey.isEmpty, let voiceId {
                 let desiredOutputFormat = directive?.outputFormat ?? self.defaultOutputFormat ?? "pcm_44100"
                 let outputFormat = ElevenLabsTTSClient.validatedOutputFormat(desiredOutputFormat)
-                if outputFormat == nil, let desiredOutputFormat, !desiredOutputFormat.isEmpty {
+                if outputFormat == nil, !desiredOutputFormat.isEmpty {
                     self.logger
                         .warning(
                             "talk output_format unsupported for local playback: \(desiredOutputFormat, privacy: .public)")
@@ -639,11 +639,12 @@ actor TalkModeRuntime {
     }
 
     func stopSpeaking(reason: TalkStopReason) async {
+        let usePCM = self.lastPlaybackWasPCM
         let interruptedAt = await MainActor.run {
-            let primary = self.lastPlaybackWasPCM
+            let primary = usePCM
                 ? PCMStreamingAudioPlayer.shared.stop()
                 : StreamingAudioPlayer.shared.stop()
-            _ = self.lastPlaybackWasPCM
+            _ = usePCM
                 ? StreamingAudioPlayer.shared.stop()
                 : PCMStreamingAudioPlayer.shared.stop()
             return primary

apps/shared/ClawdisKit/Sources/ClawdisKit/StreamingAudioPlayer.swift

@@ -143,7 +143,7 @@ private final class Playback: @unchecked Sendable {
                 return
             }
             self.enqueueCurrentBuffer(flushOnly: true)
-            self.stop(immediate: false)
+            _ = self.stop(immediate: false)
         }
     }