docs: full Phase 2 sync — TI2I + X→T statuses, sequence layouts, perf tables, file descriptions

v0.1.0: T>1 streaming-cache encode/decode verified end-to-end

docs: real perf table (256-1024), cold-start note, recon-quality numbers

docs: add deps note (einops) + M3/M4 verification + timings

Upload folder using huggingface_hub

initial commit