Fix audio quality with per-user mixing buffer and prevent TUI layout break on log overflow

cmd/tui/main.go

@@ -27,7 +27,7 @@ func main() {
 	debug := flag.Bool("debug", true, "Enable debug logging to file (default true)")
 	flag.Parse()
 
-	// Disable log output completely to prevent TUI corruption
+	// Disable log output completely to prevent TUI corruption (stdout is reserved for UI)
 	log.SetOutput(io.Discard)
 
 	// Enable debug file logging if requested
@@ -39,6 +39,8 @@ func main() {
 		if err == nil {
 			defer debugFile.Close()
 			debugLog("TUI Debug started at %s", timestamp)
+			// Redirect standard log output to debug file initially
+			log.SetOutput(debugFile)
 		}
 	}
 
@@ -51,16 +53,19 @@ func main() {
 	// Pass program reference to model for event handlers
 	m.SetProgram(p)
 
-	// Set up log capture
+	// Set up log capture for UI display
 	r, w, _ := os.Pipe()
 	if debugFile != nil {
+		// Log to both UI (pipe) and Debug File
 		log.SetOutput(io.MultiWriter(w, debugFile))
 	} else {
+		// Log to UI only
 		log.SetOutput(w)
 	}
 	// Make sure logs have timestamp removed (TUI adds it if needed, or we keep it)
 	log.SetFlags(log.Ltime) // Just time
 
+	// Goroutine to capture logs and send them to the UI
 	go func() {
 		buf := make([]byte, 1024)
 		for {
@@ -71,7 +76,6 @@ func main() {
 			if n > 0 {
 				lines := string(buf[:n])
 				// Split by newline and send each line
-				// Simple split, might need better buffering for partial lines but OK for debug
 				p.Send(logMsg(lines))
 			}
 		}