v0.26.0 — bounded GGUF structure and native usability

Quantfit 0.26.0 releases PR #130 individually: bounded GGUF structure and native usability.

Released independently from PR #130: bounded GGUF structure and native usability.

Original introduction notes follow; the linked completed source acceptance supersedes their historical pending-qualification wording.

• Bounded GGUF structure API/CLI verification replaces magic-only acceptance,
  with separate optional native CPU usability, one capped request and required
  owned cleanup. Held metadata/extent checks, explicit outside-profile refusals,
  original Inspect aliases and legacy Transformers/tuple behavior are retained.
  No weight-quality, safety or GO claim. Local crafted/fake lifecycle evidence:
  validation/2026-10-09-gguf-verification/; actual installed/native qualification
  is pending the existing hosted consumers.

The introduced source passed hosted acceptance; release publication separately qualifies the exact versioned distributions. Historical producer versions and run records remain unchanged. No QSR v1 freeze or new scientific GO is claimed.

Local validation: 2173 sparse local tests passed with 44 skipped, plus two separately available numerical properties; full Torch/model proof is hosted. Exact-head hosted CI passed before merging. The protected publishing workflow repeats full qualification and attests the exact distributions before PyPI publication.