Slate V2 Operations Family Deleted-Test Closure

Scope

Close the deleted packages/slate/test/operations/** family with explicit cluster accounting instead of leaving it as a vague shadow behind snapshot-contract.ts.

Family Closure Matrix

Cluster id	Deleted count	Status	Current proof owner	Resolution
operations.move_node	2	recovered now	operations-contract.ts	direct proof covers no-op, later-slot destination rebasing, and current selection rebasing on the raw move_node seam
operations.split_node	4	recovered now	operations-contract.ts	direct proof covers text/element behavior plus the *-empty-properties rows
operations.remove_node	11	recovered now	operations-contract.ts	restored as direct family proof and fixed at the core operation seam; snapshot overlap stays incidental, not the owner
operations.remove_text	9	recovered now	operations-contract.ts	restored as direct expanded-selection proof on the raw remove_text seam instead of only surviving inside snapshot
operations.set_node/remove-omit	1	recovered now	operations-contract.ts	direct proof covers omit-to-remove semantics on the current raw set_node seam
operations.set_node/null-undefined	2	explicit skip	none	null/undefined removal sentinels are backwards-compat legacy and not part of the current public claim
operations.set_selection	2	explicit skip	none	custom selection props are outside the current Range contract and are not part of the live public claim

Totals:

• mirrored now: 0
• recovered now: 27
• explicit skip: 4
• reconciled total: 31

Why The Restores Were Real

• remove_node was not just a deleted-fixture nostalgia row. The engine in core.ts was not rebasing transaction.selection at all for remove_node.
• the restored direct proof covers:
  • rebasing to next text when deleting the selected leading empty text
  • rebasing to previous text end when deleting the selected trailing empty text
  • rebasing into an adjacent inline when deleting the selected trailing spacer text
• remove_text now has direct expanded-selection proof instead of only a collapsed cursor case buried in the snapshot suite
• set_node omitted-property removal and split_node empty-properties behavior are now direct raw-operation rows instead of indirect behavior

Explicit Skip Rationale

operations.set_selection

• custom-props.tsx
• remove.tsx

Skip reason:

• the current selection contract is a plain Range with anchor and focus
• the live public surface does not claim legacy ad-hoc custom selection props
• restoring these would widen the current contract instead of closing a proved gap

operations.set_node

• remove-null.tsx
• remove-undefined.tsx

Skip reason:

• those rows exist for backwards-compat removal sentinels
• the current contract is the simpler omit-to-remove behavior proved by remove-omit.tsx
• widening back to null/undefined deletion semantics is not justified by the current public claim

Code Change

• core.ts now rebases selection for remove_node by finding the nearest surviving point in the draft tree before removal, then transforming that fallback through the operation

Proof Owner

• operations-contract.ts