v1.2.2

What's New

• Startup app detection — the keypad now loads the correct layout immediately on watchdog start, without needing a manual app switch
• Clean shutdown — pressing Ctrl-C now clears the keypad LEDs (fixed serial lock deadlock + race condition between BYE and port close)

Details

• Watchdog queries frontmostApplication() right after sending HELLO and sends the active app name to the Pico
• Fixed shutdown sequence: heartbeat thread is joined before send_bye(), followed by flush() and a grace period before ser.close()
• 241 tests passing