Slate v2 Batch 8: Family Depth And Granular Diff Closure

Goal

Execute Batch 8 from docs/slate-v2/master-roadmap.md.

Phases

1. rank the remaining thin family seams
2. deepen current compatibility proof where it buys real closure
3. narrow any still-current-only family contract explicitly
4. sync the family ledger, maintainer story, and granular ledger
5. verify and review

Progress

• created Batch 8 context snapshot
• identified the cheap deepening path:
  • current compatibility rows for markdown
  • current compatibility rows for forced-layout
  • current compatibility rows for styling
  • current compatibility rows for hovering-toolbar
• identified scroll-into-view as the main intentionally-current-only family
• added current compatibility rows for:
  • markdown-preview
  • markdown-shortcuts
  • forced-layout
  • styling
  • hovering-toolbar
• updated the family ledger so every widened family now has an explicit proof posture:
  • runtime-backed
  • browser-backed
  • compat-backed where honest
  • intentionally narrow where required
• kept scroll-into-view explicitly current-only instead of inventing a fake legacy floor
• synced the maintainer diff story and granular ledger rows

Exit Read

Batch 8 is complete.

The widened family story is tighter now:

• markdown, forced-layout, styling, and hovering-toolbar gained current compatibility-floor rows
• editable-voids, images, embeds, and tables keep that compat-backed posture
• scroll-into-view stays explicitly current-only
• the family-ledger granular row is closed without pretending every family is a blanket legacy clone