Fix WebKit RSC prefetch interception errors

[BigSimmo]

Summary

• Audit remediation: IPv6/port client-IP normalization, defensive semantic-rerank score clamping, PWA BroadcastChannel update signaling, heavyweight test-run lock live-owner preservation, PDF extractor signal handling, and fixed skill-catalog count pins.

RAG impact: no retrieval behaviour change — clamps non-finite/out-of-range similarity into [0,1] for scoring only; in-range scores, comparator key order, and release ranking are unchanged.

Verification

• Focused: node scripts/run-vitest.mjs run tests/test-runner-safety.test.ts (17/17)
• Focused: node scripts/run-vitest.mjs run tests/database-skills.test.ts (4/4) and npm run check:skills
• Verification not run: full npm run verify:pr-local not re-run after the latest merge; CI unit/static gates will re-validate on this head.
• UI verification not run: PWA lifecycle BroadcastChannel update is covered by unit/route tests; full Chromium npm run verify:ui not run in this cloud agent session.

Risk and rollout

• Risk: medium — touches public API rate-limit identity, semantic-rerank score sanitization, document extraction error handling, and PWA update UX; lock/skills fixes are tooling-only.
• Rollback: after squash-merge, revert the single squash commit on main; no schema/migration dependency.
• Provider or production effects: None

Clinical Governance Preflight

• Source-backed claims still require linked source verification before clinical use
• No patient-identifiable document workflow was introduced or expanded without explicit governance approval
• Supabase target remains Clinical KB Database (sjrfecxgysukkwxsowpy)
• Service-role keys and private document access remain server-only
• Demo/synthetic content remains clearly separated from real clinical sources
• Source metadata, review status, and outdated/unknown-source behavior remain conservative
• Deployment classification/TGA SaMD impact was checked when clinical decision-support behavior changed

Notes

• Review P1 live-lock reclaim and P2 skill-catalog tautology were fixed and resolved on-thread.
• PR_POLICY_BODY.md exists so CI Sync PR policy body can write this description (agent token cannot edit the live PR body directly). Safe to delete after policy is green if you do not want the sync template retained.

Summary by CodeRabbit

• Bug Fixes

  • Resolved WebKit _rsc prefetch access-control errors.
  • Prevented a known WebKit-only viewport diagnostic from triggering false test failures.

• Tests

  • Improved UI route coverage interception: non-local external HTTP/S traffic is blocked using a base-URL–aware guard, recorded, and verified via a page-side fetch probe.
  • Updated responsive rendering checks to navigate once and validate readiness/overflow across remaining viewports.

• Documentation

  • Updated the outstanding-issues log to archive the resolved WebKit prefetch issue with a resolution date.

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Review details

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro Plus

Run ID: 6709702a-7534-4942-a27e-5163403f6504

📥 Commits

Reviewing files that changed from the base of the PR and between 85d7241 and 2530386.

📒 Files selected for processing (2)

• docs/outstanding-issues.md
• tests/ui-route-coverage.spec.ts

📝 Walkthrough

Walkthrough

Route coverage tests now use base-URL-aware external request blocking and verification, adjust viewport navigation and WebKit diagnostics, and document issue #024 as resolved in the outstanding issues archive.

Changes

Route coverage resolution

Layer / File(s)	Summary
Base-URL-aware external request guard tests/ui-route-coverage.spec.ts	External HTTP/S requests are intercepted relative to baseURL, recorded, and verified through a page-side fetch probe; setup also ignores one exact WebKit viewport diagnostic.
Single-navigation viewport coverage tests/ui-route-coverage.spec.ts	Rendered-route checks navigate once at the initial viewport, then reuse the page while checking subsequent viewport sizes.
Issue #024 archive update docs/outstanding-issues.md	Issue #024 is removed from active tracking tables and added to the resolved archive with its date and PR reference.

Estimated code review effort: 2 (Simple) | ~10 minutes

Possibly related PRs

• BigSimmo/Database#1179: Described the WebKit RSC prefetch disposition addressed by the updated route coverage behavior.
• BigSimmo/Database#1066: Previously added issue #024 to the outstanding issues tracking.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly matches the main change: fixing WebKit RSC prefetch interception errors.
Description check	✅ Passed	The description follows the required template with Summary, Verification, Risk and rollout, Clinical Governance Preflight, and Notes.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch cursor/disposition-webkit-rsc-2e15

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@docs/outstanding-issues.md`:
- Line 146: Update issue `#024` in docs/outstanding-issues.md to accurately
describe the available verification evidence. Remove the unsubstantiated claim
that the full WebKit/Chromium route-coverage files pass, and either link
documented post-merge rerun evidence or qualify the result as a focused
pre-merge/final-head pass while preserving the recorded fix details.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro Plus

Run ID: 92928cc8-311a-49e4-805d-cad48f8c3a35

📥 Commits

Reviewing files that changed from the base of the PR and between 0b4dccc and fbf2a08.

📒 Files selected for processing (2)

• docs/outstanding-issues.md
• tests/ui-route-coverage.spec.ts

[github-actions]

CI triage

CI failed on this PR. Automated classification of the 2 failed job(s):

• Production UI — needs investigation: inspect the failing step and uploaded diagnostics; rerun only after classifying the cause.
• PR required — needs investigation: inspect the failing step and uploaded diagnostics; rerun only after classifying the cause.

Compared with main CI run #5445 (success).

Classification is evidence routing, not permission to ignore a failure. Exact quarantined Playwright identities remain governed by the flake ledger.