chore(ci): clear inherited JSX and OIDC test lint violations

[ekinnee]

Summary

Clear two lint violations inherited from release/v3.8.52: escape the apostrophe in the search-timeout help text in RoutingTab.tsx, and replace the OIDC test helper's explicit any response cast with the optional error-code shape its assertions inspect. The UI displays the same text and the OIDC runtime assertions are unchanged. Prettier also normalized the adjacent timeout-provider map formatting.

Related Issues

• Related to 🔴 Release branch not green: release/v3.8.52 #15306 (release base-red) and fix(api): preserve custom-node combo catalog metadata after builder saves #15668 (a contributor PR inheriting these errors).
• Separate from the combo metadata repair; no combo code is included.

Validation

• Change type: other — lint maintenance, no behavior change.
• Focused tests/category gates from the Contribution Golden Path.
• npm run lint — passed (0 errors).
• Based on active upstream release/v3.8.52 snapshot 6fed1939ec; no unrelated working-tree changes.
• Production-code changes include an updated automated test in this PR.

Evidence:

• Before the repair, full lint on the exact base snapshot reported RoutingTab.tsx:1534:65 (react/no-unescaped-entities) and oidc-settings-allowlist-guard.test.ts:33:70 (no-explicit-any). Both files are unchanged by fix(api): preserve custom-node combo catalog metadata after builder saves #15668.
• node --import tsx/esm --import ./open-sse/utils/setupPolyfill.ts tests/unit/oidc-settings-allowlist-guard.test.ts — 5 passed.
• npm run typecheck:core — passed.
• Prettier and whitespace checks passed; independent read-only review found no blocking defects.
• npm run check:file-size -- --base-ref 6fed1939ec028c1de958aa625390984167f95892 — passed.

Full unit, Vitest/UI, coverage, and build gates remain CI validation. SonarQube is opt-in, not a PR gate.

Tests Added Or Updated

• tests/unit/oidc-settings-allowlist-guard.test.ts: narrows the response helper type without changing its five real route/database assertions for the OIDC allowlist guard.

Coverage Notes

No production logic or branch changed. The JSX entity preserves the rendered text. Existing OIDC tests exercise their original behavior; no baseline or suppression change. Coverage measurement remains with CI.

Reviewer Notes

• ⚠️ base-red inherited: 🔴 Release branch not green: release/v3.8.52 #15306. This PR repairs only the two lint source violations, not dependency-audit findings, translation drift, generated-skill drift, or CI runner failures.
• Dependency repair is already active in fix(deps): bump transitive deps to patched releases (Dependabot batch) #15662; generated-skill repair is active in fix(release): drain two v3.8.52 base-reds — cycles membership test, drifted skills mirrors #15682. Their branches remain with their owners.
• No agent-instruction surface, credentials, dependencies, migrations, or feature flags changed.
• No user-facing behavior changed, so the contribution checklist does not require a changelog fragment for this maintenance repair.