chore: mark manual verification as done for Bluetooth Stress Test toggle UI

chore: mark AdvertisingPayload generator task as done

chore: mark automated tests verification as done for Bluetooth Stress Test Documentation & Demo

test: add 41 documentation tests for Bluetooth Stress Test toggle UI

chore: mark no-regressions verification as done for Bluetooth Stress Test Documentation & Demo

chore: mark automated tests verification as done for Bluetooth Stress Test toggle

chore: mark manual verification as done for Bluetooth Stress Test Documentation & Demo

test: add 50 unit tests for Bluetooth Stress Test feature verification

chore: mark no-regressions verification as done for Bluetooth Stress Test toggle UI

feat: add Bluetooth Stress Test toggle with real-time Packets Sent and Devices Targeted counters

chore: mark FastAPI POST /api/bluetooth/dos/start endpoint task as done

chore: mark manual verification as done for POST /api/bluetooth/dos/start endpoint

chore: mark automated tests verification as done for FastAPI bluetooth/dos/start endpoint

feat: add FastAPI endpoint POST /api/bluetooth/dos/start with 20 tests

chore: mark no-regressions verification as done for FastAPI endpoint