7d2a5f9d1c
Add _seed_fixed_sound() helper and call it from build_routine_manifest on the real TTS path (guarded by _real_audio = gen_audio is None). Writes ok.mp3 (Et hop !) and bravo.mp3 (Bravo ! Tu as fini.) into STAGING_ROUTINES if absent/empty; existence guard avoids re-generation. Tests stay offline: injected gen_audio != None skips the block entirely.