Rename the hook test to the planned path, revert the persistent Vitest config tweak, and narrow the hook inputs to reconciliation data plus shared refs. Keep verification working with a temporary test config instead of expanding the repo-level include list.
Move Convex-to-local node and edge reconciliation into a dedicated hook so canvas.tsx has a cleaner sync boundary during modularization. Add hook-level tests for optimistic edge carry and drag-lock behavior to preserve the existing UX.
