Five issues surfaced in the review of 50b53784. Each was either a real
bug waiting to hit users or a silent failure mode.
1. Topology rescue no longer teleports user-resized children.
Rescue was comparing against parentMinSize(childCount), so any
child the user had placed in space the parent was resized into
got snapped to the default grid on reload — undoing the layout.
Now rescue fires only on obviously corrupt data: negative
relative coords (legacy pre-nesting absolute positions that
landed above/left of their assigned parent) or values past an
MAX_PLAUSIBLE_OFFSET threshold. Children just-past the initial
minimum are left alone.
2. batchNest now filters to selection-roots before planning.
Previously selecting both A and A's descendant B and dragging
into T yanked B out of A to become a sibling under T. Users
reasonably expect the A subtree to move intact. The new pass
drops any selected node whose ancestor is also selected —
those follow their ancestor via React Flow's parent binding.
3. batchNest surfaces partial failure via showToast. Previously
silent: 2 of 5 PATCHes fail, user sees 3 cards re-parented + 2
snapped back with no explanation. Now names the failed cards.
4. confirmNest closes the nest dialog BEFORE dispatching the async
store action, so a second drag can't kick off a competing batch
while the first is still in flight.
5. collapsed is now persisted. The Go workspace_crud.go Update
handler ignored the `collapsed` field, so user-initiated
collapse round-tripped to an expanded state on next hydrate.
Added the PATCH branch (`UPDATE workspaces SET collapsed = ...`)
so the state survives reload.
Nits cleaned:
* Removed dead dragStartParentRef in useDragHandlers.
* Swapped redundant `node.data as WorkspaceNodeData` casts for a
named WorkspaceNode type alias.
* Canvas.tsx SR-live region now reads n.parentId (matches
MiniMap + RF's native field) instead of the mirror n.data.parentId.
Tests added (918 total, up from 915):
* batchNest happy path — 2-root selection fires 2 combined PATCHes
carrying parent_id + x + y, not 2×N sequential round-trips.
* batchNest ancestor+descendant selection — subtree stays intact.
* batchNest partial failure rollback — only the rejected nodes
revert; successful ones stay committed.
Backend change is single-line (collapsed PATCH branch); all
workspace_crud Go tests still pass.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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