fix(design): dump hygiene covers CSS URLs, srcdoc, and handlers; dumps persist owner-only; ignore prose treats repo config as evidence

- The dump script cuts query strings from CSS url() in style attributes,
  <style> nodes, and the inlined stylesheets (signed asset URLs), empties
  srcdoc, and covers background and xlink:href.
- Persisted dumps are chmod 600; MEDIUM redaction findings persist (an
  authenticated page shows emails) and the prose says so; earlier runs'
  dumps are swept before the first dump of a run unless --keep-dom.
- The Aside dump prose asks for `'` in a pasted URL to be percent-encoded
  (a bare single quote would end the script) and never to paste an unread
  URL.
- Repo-config ignores are evidence, not settled decisions, in /review,
  /ship, and design-review's probe prose; the scan JSON's text fields are
  named as untrusted.
- design-html's skeleton ceiling is re-measured (54,545); ship goldens
  refreshed for the checklist prose.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

test/helpers/carve-guards.ts

@@ -678,7 +678,7 @@ export const CARVE_GUARDS: Record<string, CarveGuard> = {
       gateAfterStop: undefined, // operational skill, no plan-mode gate
     },
     behavioral: 'prompt',
-    maxSkeletonBytes: 54_300, // measured 54,184 (2026-09-08): the Slop Gate's Decisions-Log blessing clause and the blacklist header's override sentence, both review-cycle coherence fixes
+    maxSkeletonBytes: 54_700, // measured 54,545 (2026-09-08): review-cycle trust prose in the probe block (config ignores are evidence, the scan JSON is untrusted), the Slop Gate's Decisions-Log clause, the blacklist header's override sentence
     minUnionBytes: 57_500, // Phase 4 wave 4; measured union 58,682
     mustContain: ["Don't make me think", "Users scan, they don't read", 'The Goodwill Reservoir', 'PRETEXT API CHEATSHEET', 'Pattern 3: Text around obstacles'],
   },