Interruption bank v2: 40 episodes, natural continuous-chunk rendering

Interruption bank v2: fix garbled clip, real self-repair, natural splits

Add redesigned interruption bank (5 types: speech/sound/self)

Noise: interruption out of SNR table, side-sequence is the design

Add natural-interruption episode-bank demo (10 varied)

Interruption: 5 old vs 5 new (natural side sequence)

Noise: add natural interruption (side sequence: answer + resume)

Noise: interruption uses a real interjection phrase bank

Noise: real interruption (user pauses, interjection, resumes)

Multi-turn: add v2 combined (all turns in one clip)

Multi-turn: use actual released audio (v1 concat vs v2 per-turn)

Noise: regenerate new side with real MUSAN ambience

Noise: compare actual released noise vs new fixed

Add noise old-vs-new comparison section

Add multi-turn v1-vs-v2 comparison section

Add accent & voice demo (edge-tts real accents + Qwen TTS controls)

initial commit