Tom Boucher 77a7fbd6be fix(graphify): fall back to graph.links when graph.edges is absent (#2323) ...

Closes #2301

## Root cause
graphify's JSON output uses the key `links` for edges, but graphify.cjs
reads `graph.edges` at four sites (buildAdjacencyMap, status edge_count,
diff currentEdgeMap/snapshotEdgeMap, snapshot writer). Any graph produced
by graphify itself therefore reported edge_count: 0 and adjacency maps
with no entries.

## Fix
Added `|| graph.links` fallback at all four read sites so both key names
are accepted. The snapshot writer now also normalises to `edges` when
saving, ensuring round-trips through the snapshot path use a consistent key.

## Test
Added LINKS-01/02/03 regression tests covering buildAdjacencyMap,
graphifyStatus edge_count, and graphifyDiff edge change detection with
links-keyed input graphs.

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

2026-04-16 17:08:44 -04:00

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