build(deps): bump markdown-it from 14.3.0 to 15.0.1

[dependabot]

Bumps markdown-it from 14.3.0 to 15.0.1.

Changelog

Sourced from markdown-it's changelog.

[15.0.1] - 2026-08-27

Changed

• doc: replace oxide theme with custom one.

Fixed

• Fixed code span parsing after lookaheads for unclosed link and image labels, #1201.
• Preserve spaces in code spans whose content consists only of spaces, #1180.
• Preserve brackets around IPv6 address literals when normalizing links, #1204.

Security

• Fixed quadratic complexity when replacing fuzzy links.
• Fixed quadratic complexity in scheme backscan (inline linkify rule).

[15.0.0] - 2026-07-30

Added

• Exposed parser internals classes as static properties on markdownit.
• Bundled TypeScript declarations. Remove @types/markdown-it if you used it.
• Added the markdown-it/browser export with bundled ESM and UMD builds.
• Added colored CLI help on supported terminals via argparse 3.
• Added reference labels to link/image tokens, #938.
• Added reference_definition tokens. They remain stripped by default for backwards compatibility, #1055. Also adjusted the line-break heuristic to keep output exactly the same.

Changed

• [breaking] linkify-it => v6
  • No fuzzy links by default.
  • No auth part check by default.
  • Unicode punctuation terminates the link by default (should help with CJK).
  • See linkify-it changelog for other changes.
• Package root now resolves to prebuilt ESM and CJS files instead of raw sources. Distribution files were reorganized under dist/ and dist/browser/.
• Migrated to Typescript.
• entities => v8. Can be rolled back to v7 if compatibility issues happen.
• Moved validateLink, normalizeLink and normalizeLinkText from properties to prototype methods.
• Reworked issue templates and contribution guidelines.

Removed

• [breaking] Removed package-internal subpath exports (markdown-it/lib/* and similar). Use the static classes exposed on markdownit instead.
• [breaking] Removed obsolete StateBlock#ddIndent, #1139. Update markdown-it-deflist to keep it working.

Fixed

... (truncated)

Commits

• 924b203 15.0.1 released
• 25c3895 Changelog update
• aaadcfa Fix quadratic complexity in scheme backscan (inline linkify rule)
• 09fa071 Fix quadratic complexity when replacing fuzzy links
• 988c82b fix: don't strip spaces from all-space code spans
• 26b9a7b Polish previous commit
• e8c6688 fix: preserve IPv6 brackets in normalizeLink (#1204)
• 5e9b1cc Rework backticks cache to remove side effects, close #1201
• 7b9a6a3 doc: fix source link style for methods
• 1e8ab89 doc: add changelog to menu
• Additional commits viewable in compare view

[dependabot]

Superseded by #192.