Collapse duplicate repository graph nodes

workplans/ADHOC-2026-05-21.md

@@ -0,0 +1,39 @@
+---
+id: ADHOC-2026-05-21
+type: workplan
+title: "Ad Hoc Fixes 2026-05-21"
+domain: railiance
+repo: railiance-fabric
+status: finished
+owner: codex
+topic_slug: railiance
+created: "2026-05-21"
+updated: "2026-05-21"
+state_hub_workstream_id: "c5126722-3b6c-4a6a-b687-bc2ebfce5d58"
+---
+
+# ADHOC-2026-05-21 - Ad Hoc Fixes
+
+## Collapse Duplicate Repository Icons
+
+```task
+id: ADHOC-2026-05-21-T01
+status: done
+priority: medium
+state_hub_task_id: "8af02b06-b9a4-457a-bbdc-fa97543944a4"
+```
+
+After projecting all discovery candidates into the local registry graph, the
+graph explorer rendered each repository twice: once as the canonical registry
+repository node and once as the discovered `Repository` candidate node.
+
+The graph explorer now collapses discovered `Repository` nodes into the
+canonical `repo:<slug>` node and rewires source graph edges to that canonical
+node, preserving relationships without duplicate repo icons.
+
+Verification:
+
+- `python3 -m pytest tests/test_graph_explorer.py -q` passed.
+- `python3 -m pytest` passed with 34 tests.
+- Restarted the local registry and confirmed the graph explorer export now has
+  35 repository nodes instead of 69.