v0.2.0

[0.2.0] - 2026-07-09

Release gate verified on Blackhole (p150a): Protenix-v2 e2e real-weight parity (seed0-vs-reference
Kabsch RMSD 8.7 Å, within the sampler's own seed-to-seed variance band); Protenix component parity
14/14, Boltz-2 13/13, ESMFold2 plddt/distogram parity, host suite green; no OOM across the supported
size range.

Added

• Protenix-v2 denoise ttnn trace — opt-in fold(trace=True) (with
  get_device(trace_region_size=1 << 30)): captures and replays the dispatch-bound
  denoise stream. Lossless (bit-exact vs untraced) and ~22% faster warm diffusion at L256,
  a larger end-to-end win as diffusion_samples grows.

Changed

• Trace/device toggles are now normal function arguments (fold(trace=...),
  get_device(trace_region_size=...)) instead of environment variables.

Fixed

• Input validation hardening: unique chain ids past 26 chains, reject inputs that share a
  name stem, keep blank-id FASTA chains, reject empty polymer sequences, and validate
  explicit --device_ids against the cards actually present.
• tt_bio.__version__ now reports the installed tt-bio version (previously read the wrong
  package and could be undefined).
• README/docs consistency pass (flags, examples, model list).