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d 🔹andClaude Opus 4.7
988533a550
Reviewer @Lum1104 (PR #112) caught a silent semantic regression: the new `filterNodes` reads layer membership through `nodeIdToLayerId.get(node.id)`, which is first-wins. The pre-#112 path was any-layer-wins — `layers.some(layer => filters.layerIds.has(layer.id) && layer.nodeIds.includes(node.id))`. For a node X listed in both L1 and L2 with only L2 selected, the old code kept X; the new code dropped it. The schema permits multi-layer membership, so this was a behavior change, not a bug fix. Fix: keep two distinct indexes in the store. Both are rebuilt once on `setGraph`, so the O(1)-per-node performance win from #112 is preserved. - `nodeIdToLayerId: Map<string, string>` — first-matching-layer wins. Drives navigation (drillIntoLayer / tour step → layer / sidebar history) where one canonical layer is the right answer. Unchanged. - `nodeIdToLayerIds: Map<string, Set<string>>` — every layer the node belongs to. Drives `filterNodes` membership checks. Restores any-layer-wins exactly. `filterNodes` now iterates the (small) layer-id set per node looking for intersection with `filters.layerIds`. ExportMenu reads `nodeIdToLayerIds` from the store. Verified locally: - Added `filters.test.ts` regression: node in (L1, L2) with only L2 selected must pass. Failed against the first-wins implementation; passes now. - `pnpm --filter @understand-anything/dashboard test` — 42 / 42 pass (was 41; +1 multi-layer regression test; perf-guard at 100 layers × 100 nodes still <50 ms). - `pnpm --filter @understand-anything/dashboard exec tsc --noEmit` — clean. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>