Hierarchical graphs PR1: WorkItem drills into a Graph (schema + queries)#59
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First slice of Altium-style "graphs of graphs": a WorkItem can be a sheet
symbol that drills into a sub-graph.
- neo4j-schema.ts: WorkItem.subgraph (DRILLS_INTO -> Graph) + denormalized
subgraphId scalar; inverse Graph.drillSources. Additive, no data migration.
- queries.ts: fetch subgraphId + subgraph{ id name nodeCount edgeCount type }
in GET_WORK_ITEMS / GET_WORK_ITEM_BY_ID.
- types/graph.ts: WorkItem gains subgraphId? + subgraph? summary.
Verified: GraphQL exposes the fields and returns null for existing nodes;
THE GATE 5/5; web + server typecheck clean.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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First slice of the Altium-style "graphs of graphs" feature (see approved plan).
A WorkItem can now be a sheet symbol that drills into a sub-graph:
neo4j-schema.ts:WorkItem.subgraph(DRILLS_INTO→ Graph) + denormalizedsubgraphIdscalar; inverseGraph.drillSources. Additive — no Neo4j data migration; existing nodes resolvenull.queries.ts: fetchsubgraphId+subgraph { id name nodeCount edgeCount type }.types/graph.ts:WorkItemgains the optional fields.No behavior change yet — navigation (PR3) and seed data (PR2) build on this.
Verified: GraphQL exposes the fields (null for existing nodes), THE GATE 5/5, web+server typecheck clean.
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