fix build scripts

docs: add comprehensive README and project logo

assets: add remaining audio sample files

docs: reorganize vision/audio guides and add local assets

Merge branch 'flux' into main

feat(flux): add flux2 token resolution, source metadata, and docs

Add MLX metallib preflight and GPU safety fallback

Add MLX Whisper STT and harden Qwen3TTS tokenizer loading

feat: refresh model catalog and add release tooling docs

feat(cli): unify model flags/progress and remove RMBG2Swift dependency

chore(repo): stop tracking docs directory

feat(model): inline pull progress and keep local cache path output

feat(chat): add interactive repl mode when prompt is omitted

feat(chat): add qwen3.5 model support and verbose tps metrics

merge: sync audio updates into main