Add 11-BLE-Scanner: on-screen BLE scanner, inspector and ELM327 test

- NimBLE-Arduino 2.5.1, BLE work in a background task on core 0
- LVGL 9 UI for the round screen: device list (OBD-like devices in green),
  tap to list services/characteristics, ELM test (ATZ/ATE0/ATI/ATRV/0100)
- results saved to LittleFS /ble_log.txt; serial d/c/s commands
- shared lv_conf: Montserrat 16 and 20 enabled

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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patriandClaude Opus 5.5 committed 2026-10-23 01:54:36 +02:00
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@@ -1016,13 +1016,13 @@
#define LV_FONT_MONTSERRAT_14 1
/** Montserrat 16 */
#define LV_FONT_MONTSERRAT_16 0
#define LV_FONT_MONTSERRAT_16 1 /* JC3636W518 */
/** Montserrat 18 */
#define LV_FONT_MONTSERRAT_18 0
/** Montserrat 20 */
#define LV_FONT_MONTSERRAT_20 0
#define LV_FONT_MONTSERRAT_20 1 /* JC3636W518 */
/** Montserrat 22 */
#define LV_FONT_MONTSERRAT_22 0