v0.4.0

Added

• GFM alert/admonition support (> [!NOTE], > [!TIP], > [!WARNING], > [!CAUTION], > [!IMPORTANT]) mapped to Confluence structured macros
• Emoji shortcode support (:smile: → 😄) with 1913 GitHub-compatible mappings, enabled by default (--disable-emoji to turn off)
• Local diagram rendering for mermaid and PlantUML code blocks via --render-diagrams flag (requires mmdc and/or plantuml on PATH)
• --mmdc-path and --plantuml-path CLI flags for custom tool locations

Changed

• Refactored anchor handling from post-processing HTML rewriting to pre-scan approach for better reliability