[voischev]

Summary

Prepare posthtml-parser 0.13.0 for npm publication, including the changes merged in #109 and #110.

• Update the package and lockfile versions from 0.12.1 to 0.13.0.
• Promote the curated release notes to 0.13.0 (2026-10-28) and leave a fresh Unreleased section.
• Keep the release instructions reusable by presenting 0.13.0 as an example version.

The release includes htmlparser2 12, directive/XML/SVG compatibility fixes, simplified native Node.js testing and TypeScript builds, refreshed documentation and maintainer contact information.

Verification

• Fresh npm ci succeeds.
• npm publish --dry-run --json succeeds for posthtml-parser@0.13.0, including the real prepublishOnly check and package preparation lifecycle.
• 39 tests pass, with two existing skipped tests; lint, current/minimum TypeScript checks and CommonJS/native ESM package checks pass.
• Full npm audit: 0 vulnerabilities.
• npm pack produces the expected nine package files, including JavaScript, declarations, source maps, metadata, README and license.
• Confirmed that npm version 0.13.0 and Git tag v0.13.0 were available when preparing this release.

Compatibility

This is a breaking 0.x release:

• Node.js requirement: ^20.19.0 || >=22.12.0.
• Consumer declarations require TypeScript 5.3+.
• The htmlparser2 backend moves from version 9 to 12.
• With decodeEntities: true, entities in textarea content are now decoded consistently with other text content.

After merging this release PR, tag the tested master commit as v0.13.0 and publish that checkout to npm.