feat: TeamSpeak TUI client with Bubble Tea

- Created TUI client in cmd/tui
- Implemented channel navigation and user display
- Fixed serverInfo initialization in ts3client
- Added real-time log panel in TUI
- Ordered channels by ID for stability

cmd/tui/main.go

@@ -0,0 +1,53 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"io"
+	"log"
+	"os"
+
+	tea "github.com/charmbracelet/bubbletea"
+)
+
+// debugLog writes to a debug file
+var debugFile *os.File
+
+func debugLog(format string, args ...any) {
+	if debugFile != nil {
+		fmt.Fprintf(debugFile, format+"\n", args...)
+		debugFile.Sync()
+	}
+}
+
+func main() {
+	serverAddr := flag.String("server", "127.0.0.1:9987", "TeamSpeak 3 Server Address")
+	nickname := flag.String("nickname", "TUI-User", "Your nickname")
+	debug := flag.Bool("debug", false, "Enable debug logging to tui-debug.log")
+	flag.Parse()
+
+	// Disable log output completely to prevent TUI corruption
+	log.SetOutput(io.Discard)
+
+	// Enable debug file logging if requested
+	if *debug {
+		var err error
+		debugFile, err = os.Create("tui-debug.log")
+		if err == nil {
+			defer debugFile.Close()
+			debugLog("TUI Debug started")
+		}
+	}
+
+	// Create the TUI model
+	m := NewModel(*serverAddr, *nickname)
+
+	// Create Bubble Tea program
+	p := tea.NewProgram(m, tea.WithAltScreen())
+
+	// Run
+	if _, err := p.Run(); err != nil {
+		fmt.Fprintf(os.Stderr, "Error: %v\n", err)
+		os.Exit(1)
+	}
+}