- Scan for ThermoPro by advertised service UUID instead of relying only on MAC,
solving resolvable-private-address issues after phone pairing.
- Defer connect until after the scan is fully stopped to avoid NimBLE race.
- Add connect cleanup, state-name diagnostics, and main-loop retry.
- Switch display config to LGFX_AUTODETECT for correct CYD pinout.
- Verified: CYD connects to ThermoPro and receives temperature notifications.