Changelog 2026-03-04 (Per-Post Social Cards + OG Defaults Pass 3)

Mar 4, 2026

Changed

• Cleaned social description fallback pipeline by plainifying/unescaping and truncating to safer preview length.
• Added canonical URL default handling and now emit <link rel=\"canonical\"> consistently.
• Switched OG/Twitter URL tags to canonical value for cleaner share consistency.
• Added fallback support for front matter images[0] when no explicit social image is set.
• Expanded social-card front matter fields (social_card, social_image, social_image_alt) to note, field-note, and monthly-review archetypes.

Why

• Reduce messy snippet output in social cards and make per-post preview control available across more post-like content types.