refactor: replace Earmark with MDEx for markdown rendering#107
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refactor: replace Earmark with MDEx for markdown rendering#107
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Swap the markdown parser from Earmark (pure Elixir) to MDEx (Rust/comrak NIF) for better CommonMark compliance, multi-language syntax highlighting, and typed AST structs. - Replace Earmark parse/transform/render pipeline with MDEx AST-level pipeline: vertex link rewrite via MDEx.Raw node splicing → HTML render - Add mdex dependency, remove makeup_elixir direct dependency - Use Lumis html_linked formatter for class-based syntax highlighting with light/dark mode CSS support - Replace Makeup CSS classes with Lumis semantic CSS classes - Enable GFM extensions (tables, autolinks, strikethrough) - Delete CodeHighlighter module (MDEx/Lumis handles all languages natively) - Update existing test assertions for Lumis output format - Add tests for special chars, nested links, mixed content, empty input
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Summary
Swap the markdown parser from Earmark (pure Elixir) to MDEx (Rust/comrak NIF) for better CommonMark compliance, multi-language syntax highlighting, and typed AST structs.
Test plan