chore(deps): refresh docs tooling

[steipete]

Summary

• update the exact Lucide tooling pin from 1.28.0 to 1.30.0
• refresh Mermaid's allowed DOMPurify resolution from 3.4.12 to 3.4.13, fixing GHSA-55q2-fjhq-7xh7

Verification

• npm test — 4 tests passed
• npm run docs:check — 30,562 pages built; 15,660 pages indexed across 21 languages; routing, smoke, and visual checks passed
• npm audit --json — zero vulnerabilities
• npm outdated --json — no remaining updates
• source-blind local HTTP validation returned 200 for English, gateway, locale, and Pagefind routes
• Codex autoreview — clean, no accepted/actionable findings

No mirrored or generated docs source was edited.

[steipete]

Landed as 68d2a74.

Verification:

• npm test passed
• full docs check built 30,562 pages, indexed 15,660 pages across 21 languages, and passed routing, smoke, and visual checks
• npm audit --json reports zero vulnerabilities; npm outdated --json is empty
• source-blind local HTTP validation returned 200 for English, gateway, locale, and Pagefind routes
• exact-head Docs Code CI and both CodeQL analyses passed
• Codex autoreview was clean with no accepted/actionable findings

No mirrored/generated docs source was edited. This repository continuously deploys main; there is no semver release step.