Slate V2 Transforms MoveNodes Path Cluster Recovery

Scope

Recover the still-useful packages/slate/test/transforms/moveNodes/path/** cluster on the current helper seam without pretending the whole deleted family is already rebuilt.

Recovered Contract

• Transforms.moveNodes(...) keeps the current exact-path no-op behavior when at and to are equal
• later nested-container targets are rebased before they hit raw move_node
• move_node now rebases selection on the transaction seam instead of leaving stale paths behind after helper-driven moves

Direct Proof

• transforms-contract.ts

Current direct rows:

• exact-path no-op move
• moving a top-level block into the next block container while preserving selection rebasing into the moved block

Why This Was Worth Restoring

• the deleted moveNodes/path/** rows still map to real helper behavior
• the helper was forwarding user-facing nested to paths too literally
• the raw move_node operation seam was not rebasing transaction.selection at all

Code Change

• transforms-node.ts now pre-adjusts later nested targets before applying raw move_node
• core.ts now rebases selection for move_node

Explicit Skip Boundary

Not recovered in this batch:

• richer moveNodes/path/text*.tsx rows that rely on broader live adjacent-text merge behavior after cross-block text moves

That behavior is outside the currently proved live normalization floor and should not be smuggled back in as a “free” helper fix.