Slate v2 Links + Paste-HTML Tranche

Supporting plan. For current queue and roadmap truth, see master-roadmap.md.

Goal

Execute the next inline-family migration slice after mentions:

• seeded and selection-wrapped inline links
• app-owned HTML paste policy for paragraphs plus links

Scope

• minimal runtime seam: onPaste forwarding on Editable / EditableBlocks
• one v2-native links surface
• one v2-native paste-html surface
• browser proof for:
  • seeded link rendering
  • selection-wrapped link insertion
  • app-owned HTML paste into current paragraph and link shapes
• roadmap/doc sync

Non-Goals

• no restoration of legacy withInlines / insertData override architecture
• no mark deserialization parity for legacy rich HTML
• no generic inline plugin system

Outcome

Completed as a conservative slice.

Landed:

• onPaste forwarding in the runtime
• v2-native links and paste-html examples
• dedicated Playwright proof lanes
• widened replacement matrix with legacy/current links rows
• roadmap/docs sync that keeps HTML paste explicitly app-owned

Still later:

• richer HTML formatting policy
• link auto-wrap from pasted URL as a roadmap claim
• full legacy inline parity