docs: refresh SimA public asset state

[DeliciousBuding]

Summary

• add a 2026-05-25 metadata refresh to the existing SimA evidence note
• record that the official repo is still on master commit 97dce4fec6030094fc722557a8b03b6858eab37b
• confirm GitHub still has no releases/tags and no non-vendor split/checkpoint/score/ROC/manifest artifacts

Decision

• decision unchanged: official code-public mechanism watch only
• no GPU release, dataset/model download, or Platform/Runtime admission

Checks

• git diff --check
• python -X utf8 scripts/check_public_surface.py
• python -X utf8 scripts/check_markdown_links.py
• python -X utf8 scripts/export_admitted_evidence_bundle.py --check
• python -X utf8 scripts/run_pr_checks.py

[gemini-code-assist]

Code Review

This pull request updates the SimA artifact gate documentation with a 2026-05-25 refresh, noting that the repository still lacks public releases, tags, and functional links for datasets or checkpoints. Review feedback identifies an inconsistency in the summary of the repository scan, suggesting the inclusion of missing items like notebooks and licenses to align with the detailed evidence table.

[gemini-code-assist]

The summary of the tree scan findings in this new section is inconsistent with the detailed evidence table later in the document. Line 63 explicitly mentions that the repository contains DDPM/ code, notebooks, the README, and the license, all of which are omitted from the "found only" list here. This discrepancy could mislead readers about the actual contents of the repository and the scope of the refresh.

Suggested change

	A non-vendor artifact-shaped tree scan excluding `diffusers/`,
	`guided-diffusion/`, `latent-diffusion/`, and `taming-transformers/` found only
	editor config, figures, and `scripts.sh`; it did not find committed public
	A non-vendor tree scan excluding diffusers/,
	guided-diffusion/, latent-diffusion/, and taming-transformers/ found only
	code, notebooks, figures, scripts.sh, README, license, and editor config; it did not find committed public