04e60cfacd
New test classes: - TestSessionLifecycle: /new then /status sequence, idempotent resets - TestAuthorization: unauthorized users get pairing code, not commands - TestSendFailureResilience: pipeline survives send() failures Additional command coverage: /provider, /verbose, /personality, /yolo. Note: /provider test is xfail - found a real bug where model_cfg is referenced unbound when config.yaml is absent (run.py:3247).