- New 1200×630 og-image.png with the editorial palette, a kasuti-style
snowflake motif, and the correct title/tagline.
- Fixed the title-template suffix "| Hatch" → "| Interactives" in
BaseHead.
- InteractiveLayout now checks public/og/<slug>.png at build time and
passes it through as the preview image; falls back to the default
otherwise. Ships a dedicated og/kasuti.png showing the front/back
snowflake paired up.
https://claude.ai/code/session_01KNdXjQczMCRGMK7K3Qderw
