feat(audio): audible seamless dread drone + louder menu bed

feat(audio): deep dread menu drone (sub + dissonant swell + distant toll)

feat: type_tick_wav_bytes — dry tick for the intro typewriter

fix: scroll game to top on entry/restart; quieter drone-heavy menu bed

feat: front-door menu, Tester/Full modes, How to Play, menu music + ritual

feat: synth heartbeat, sigh, flatline finale sounds

feat: detuned music-box note on every reply

feat: bad finale climax — delayed reveal, triple screen stab, horror sting