Always restart VAD after dictation ends

stopAndPaste had early returns for empty text that skipped the
startWakeListeningIfNeeded call. Use defer to guarantee VAD
restarts regardless of which code path exits the method.

Made-with: Cursor

Author: seyeong-han

voxtral_realtime/macos/VoxtralRealtime/Services/DictationManager.swift

@@ -182,6 +182,11 @@ final class DictationManager {
         dismissPanel()
         log.info("Dictation stopped, text length: \(rawText.count)")
 
+        defer {
+            store.wakeState = preferences.enableSileroVAD ? .listening : .disabled
+            Task { await startWakeListeningIfNeeded() }
+        }
+
         guard !rawText.isEmpty else { return }
 
         let result = store.processDictationText(rawText)
@@ -210,8 +215,6 @@ final class DictationManager {
             duration: duration,
             wakeTriggered: wakeTriggeredForCurrentSession
         )
-        store.wakeState = preferences.enableSileroVAD ? .listening : .disabled
-        await startWakeListeningIfNeeded()
     }
 
     // MARK: - Silence Detection