update build scripts

scripts/build.sh

@@ -1,25 +1,13 @@
 #!/usr/bin/env bash
 set -euo pipefail
-
-# Local build-only test script for Linux/macOS.
-# Compiles the project WITHOUT uploading to any device.
-# Useful to quickly check "does it even compile" without touching the M5Stack.
-#
-# Usage:
-#   ./scripts/build.sh
-
 cd "$(dirname "$0")/.."
-
 VENV_DIR=".venv-platformio"
-
 if [ ! -d "$VENV_DIR" ]; then
     echo "Creating local virtualenv in $VENV_DIR ..."
     python3 -m venv "$VENV_DIR"
     "$VENV_DIR/bin/pip" install --upgrade pip
     "$VENV_DIR/bin/pip" install platformio
 fi
-
 echo "Running build (no upload) ..."
 "$VENV_DIR/bin/pio" run
-
 echo "Build finished successfully."