v0.2.0

• #17: Define the vocabulary formatter inline in collect, removing the separate formatter module and public export — @dblock.
• #16: Move runtime modules into src/, preserving public imports and CLI commands — @dblock.
• #15: Collect candidates through a markdownlint-cli2 output formatter, honoring project configuration without configuration edits and removing the globby runtime dependency — @dblock.
• #14: Use native front matter diagnostics and fixes in markdownlint 0.42.0, removing the header-stripping workaround and leaving YAML hidden from ordinary Markdown rules — @dblock.