fix: accurate port banner and tkinter graceful fallback

- Move startup banner into main.py so it shows the actual configured
  port instead of a hardcoded 8080 in the launcher scripts
- Wrap tkinter import in try/except so embedded Python (which lacks
  tkinter) logs a warning instead of crashing the overlay thread

build-dist.sh

@@ -101,18 +101,8 @@ SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
 export PYTHONPATH="$SCRIPT_DIR/app/src"
 export WLED_CONFIG_PATH="$SCRIPT_DIR/app/config/default_config.yaml"
 
-# Read port from env var or use default
-PORT="${WLED_SERVER__PORT:-8080}"
-
 mkdir -p "$SCRIPT_DIR/data" "$SCRIPT_DIR/logs"
 
-echo ""
-echo "  ============================================="
-echo "   LedGrab vVERSION_PLACEHOLDER"
-echo "   Open http://localhost:$PORT in your browser"
-echo "  ============================================="
-echo ""
-
 source "$SCRIPT_DIR/venv/bin/activate"
 exec python -m wled_controller.main
 LAUNCHER