add tui and persistent targets

scripts/install-udev-rules.sh

@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+# Grant serial-port access for Arduino upload (CH340, CP210x, FTDI, etc.)
+# Run once: sudo ./scripts/install-udev-rules.sh
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+BUNDLED_UDEV="${SCRIPT_DIR}/99-platformio-udev.rules"
+DEST="/etc/udev/rules.d/99-platformio-udev.rules"
+
+if [[ "${EUID}" -ne 0 ]]; then
+  echo "Run with sudo: sudo $0" >&2
+  exit 1
+fi
+
+# When run via sudo, HOME is /root — use the invoking user's home for PlatformIO fallback.
+REAL_USER="${SUDO_USER:-${USER}}"
+REAL_HOME="$(getent passwd "${REAL_USER}" | cut -d: -f6)"
+
+PIO_UDEV="${REAL_HOME}/.platformio/penv/lib/python3.14/site-packages/platformio/assets/system/99-platformio-udev.rules"
+
+if [[ -f "${BUNDLED_UDEV}" ]]; then
+  SOURCE_UDEV="${BUNDLED_UDEV}"
+elif [[ -f "${PIO_UDEV}" ]]; then
+  SOURCE_UDEV="${PIO_UDEV}"
+else
+  echo "udev rules not found. Expected one of:" >&2
+  echo "  ${BUNDLED_UDEV}" >&2
+  echo "  ${PIO_UDEV}" >&2
+  exit 1
+fi
+
+install -m 644 "${SOURCE_UDEV}" "${DEST}"
+udevadm control --reload-rules
+udevadm trigger
+
+echo "Installed ${DEST} (from ${SOURCE_UDEV})"
+echo "Unplug and replug the Arduino, then: pio run -t upload"