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## Summary Fix collapsed node connection links rendering at wrong positions when entering a subgraph for the first time. `fitView()` (added in #10995) changes canvas scale/offset, invalidating cached slot positions for collapsed nodes. ## Changes - **What**: Schedule `requestSlotLayoutSyncForAllNodes()` on the next frame after `fitView()` in `restoreViewport()` so collapsed node slot positions are re-measured against the updated transform. Inner RAF guarded against mid-frame graph changes. - **Test coverage**: - Unit tests in `subgraphNavigationStore.viewport.test.ts` verify the RAF chain calls `requestSlotLayoutSyncForAllNodes` after `fitView`, and skip the re-sync when the active graph changes between frames. - E2E screenshot test (`@screenshot` tag) validates correct link rendering on first subgraph entry using a new fixture with a pre-collapsed inner node. ## Review Focus The nested `requestAnimationFrame` is intentional: the outer RAF runs `fitView()`, which updates `ds.scale`/`ds.offset` and triggers a CSS transform update on `TransformPane`. The inner RAF ensures the DOM has reflowed with the new transform before `requestSlotLayoutSyncForAllNodes()` measures `getBoundingClientRect()` on slot elements. --------- Co-authored-by: github-actions <github-actions@github.com>