fix: re-pin and re-stamp the five drifted wiki/core provenance pages

[Jammy2211]

Clears the five content_sha256 errors that failed wiki_currency_check_autogalaxy during the 2026-08-07 release run (PyAutoHands release.yml 31200419263). That red has been on main since 2026-08-06, so every PR to this repo has been failing wiki-currency regardless of its contents until this lands.

Five files under wiki/core/. No library, workspace, or skill code touched.

The prompt's framing was inverted, and it changed the fix

This was filed as a pure --write-provenance re-stamp, with a warning against blessing stale prose. The reverse held: the prose is correct and two pinned_commits were stale.

All five mismatches trace to one commit, b2fc57a ("docs: update HowToGalaxy references for the tutorial restructure", #12), whose own message records the deferral — "The page's pinned_commit frontmatter is left for the ag_update_wiki maintainer flow." Known debt, not an accident.

The load-bearing detail: --write-provenance rewrites content_sha256 only and never touches pinned_commit (autoassistant/audit_skill_apis.py:1132-1133). A bare re-stamp would have turned this job green while leaving two pages attesting current prose against superseded source.

Re-pinned (2), after re-validating the prose against those checkouts

• external/howtogalaxy.md — HowToGalaxy b1815e9d → ee283c9d. This pin had to move: b2fc57a rewrote the page's own paths: list to chapter_3_pixelizations / chapter_4_scaling_up_galaxies, directories that do not exist at b1815e9d. The checker cannot catch this — it verifies a pin is a real, reachable commit, not that the declared paths resolve there. Verified against ee283c9d: 6+10+6+3+1 = 26 tutorials, 6 simulators, 32 .py total, 26+6 = 32 matching notebooks, and all three chapter tables agree with the files on disk.
• external/skill_citation_map.md — autogalaxy_assistant a083753c → 239a61c, 4 commits stale on skills/ (22 files, including two entirely new skills). Content was already current — 25 skills on disk, 25 rows, zero drift in either direction, all 13 HowToGalaxy cells resolve — so this is a pin correction, not a rewrite.

Re-stamped only (3)

Each took a one-line HowToGalaxy cross-reference from b2fc57a, and none of their pinned projects moved. Every claim re-verified against source:

• concepts/inversions_and_pixelizations.md — chapter 3 does carry the linear algebra and Bayesian statistics (tutorial_3_inversions, tutorial_5_bayesian_formalism).
• concepts/non_linear_search.md — chaining is tutorial_9_search_chaining + tutorial_10_prior_passing, at the end of chapter 2.
• external/rtd.md — PyAutoGalaxy:docs/howtogalaxy/ has exactly chapter_1_introduction … chapter_4_scaling_up_galaxies plus chapter_optional.

Also folded in: two undocumented prose files

HowToGalaxy carries two extensionless prose files — chapter_2_modeling/tutorial_11_summary and chapter_3_pixelizations/introduction. They are chapter narrative, not tutorials: no .py, no notebook, correctly excluded from the counts. Undocumented, they are an active trap — listing the directory makes the first look like an eleventh tutorial, and this page's own URL-building rule (scripts/CHAPTER/TUTORIAL.py) yields a 404 for it. Now documented beside the existing chapter-1 caveats, including the contrast with chapter 1's tutorial_5_summary.py, which is a real script and is counted in its 6.

Verification

Run locally on this branch:

Leg	Result
--check-provenance	0 errors (was 5), 101 warnings
--check-citations	78 files, 1061 citations, 0 missing
--lint-idioms	clean, 122 files

A self-check worth reusing: four of the five new hashes landed exactly on the "actual" values the checker reported before any edit — proof that no prose changed in those four. Only howtogalaxy.md differs, and only by the one deliberate addition.

--check-version and --scope all were not gradeable locally — they grade against an installed autogalaxy, absent from the container this was prepared in, and per the baseline-repin-TRAP recorded under mge-sigma-min-workspace-sweep a local source install would be the wrong ground truth anyway.

Both have since passed in CI (wiki-currency job 93016921887). Verified rather than assumed from the badge: the job's stdout is empty because each leg writes to $GITHUB_STEP_SUMMARY, so the workflow was read directly — run() captures each leg's rc and sets fail=1 on any non-zero, all five legs run unconditionally, and exit "$fail" is the aggregate (.github/workflows/wiki-currency.yml:129-157). A green conclusion therefore means all five legs exited 0, with nothing skipped or masked. --check-version passing also confirms the baseline still matches released autogalaxy 2026.8.7.1.

The 101 provenance warnings are all no git checkout resolvable — commit checks skipped (packaged install?), expected on a runner where the libraries are pip-installed. Not actionable, and deliberately not "fixed".

Related, not folded in

The sibling wiki_currency_check failure for autolens in the same release run was a PyPI index-propagation race, already resolved and graded clean on all five legs on 2026-08-07. No autolens counterpart exists or is needed.