- Add CutStore (Zustand) to store cut node IDs, node data, edges, and source graph ID
- Update graphToDot() to render cut nodes with dashed grey style for visual indication
- Add 'Cut' action to node context menu; 'Paste' action to empty-area context menu
- Cut logic: captures selected nodes (or right-clicked node if none selected) plus
all nodes reachable by outgoing edges from those nodes; clears selection afterwards
- Paste logic: adds cut nodes/edges to target graph, removes them from source graph
in GraphsStore; pasting on the same graph as the cut source cancels the cut
- Graph re-renders automatically when cutNodeIds changes via useCutStore subscription
- Clear cut store on file load for consistency
- Add E2E tests covering: Cut menu visibility, Paste menu visibility, cut styling,
linked-node inclusion, cross-subgraph paste, source-graph cleanup, same-graph cancel
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Right-clicking on empty graph area (outside any node or edge) now shows
a context menu with a single 'Create Node' option. Clicking it adds a new
node with a random label and no edges, allowing the user to wire it up
manually afterwards.
- NodeContext gains isEmptyArea flag to distinguish empty-area from node
right-clicks
- Container div contextmenu handler covers the white space below the SVG;
SVG-level handler covers empty space within the rendered graph
- node contextmenu handler calls stopPropagation so the SVG handler never
fires for node clicks; SVG handler also guards via target.closest check
- NodeContextMenu renders emptyAreaItems (Create Node only) vs nodeItems
(Rename / Subgraph / Remove) based on the flag
- randomWordList extracted as a named export so NodeContextMenu can reuse
the same word bank
- Three new Playwright e2e tests cover: empty-area menu shows only Create
Node, created node is orphaned (no new edges), node right-click does not
show Create Node
