Two fixes for the E2E test failures:
1. event_reporter_init() was never called in app_main(), so the
FreeRTOS queue and reporter task were never created. Every BT
event (pair_request, gatt_read, gatt_write, gatt_subscribe)
was silently dropped at the NULL-queue guard.
2. SSP Numeric Comparison requires both sides to confirm, but
bt_pair blocks until completion — creating a deadlock since
the LLM can't send classic_pair_respond while waiting. Added
auto_accept flag to set_ssp_mode that auto-confirms numeric
comparison requests in the GAP callback.
Ryan Malloy
5a853c15fc