chore: prepare release v0.0.34

[freshtechbro]

Summary

• bump OpenDevBrowser and extension metadata to 0.0.34
• add the v0.0.34 release evidence ledger
• update release runbooks and first-run tarball references

Tests

• npm run extension:sync
• npm run version:check
• npm run test:release-gate
• node scripts/audit-zombie-files.mjs
• node scripts/docs-drift-check.mjs
• node scripts/chrome-store-compliance-check.mjs
• ./skills/opendevbrowser-best-practices/scripts/validate-skill-assets.sh
• ./skills/opendevbrowser-motion-design/scripts/validate-skill-assets.sh
• npx opendevbrowser --help
• npx opendevbrowser help
• npm run lint
• npm run typecheck
• npm run test
• npm run build
• npm run extension:build
• npm run extension:pack
• npm pack --pack-destination /tmp
• git diff --check