Add REUSE-WP-0005 workplan for registry federation and relation graphs

Seed follow-up work to compose federated capability indexes from configured
helix_forge sources and generate Mermaid relation graphs per gap analysis
priorities 12 and 14.

workplans/REUSE-WP-0004-registry-hardening.md

@@ -9,6 +9,7 @@ owner: codex
 topic_slug: helix-forge
 created: "2026-06-15"
 updated: "2026-06-15"
+state_hub_workstream_id: "8e792e1e-8f28-4f7f-8c53-2b04ef078e61"
 ---
 
 # Registry hardening: CI, overlap detection, and catalog
@@ -23,6 +24,7 @@ reporting (UC-RS-015), and a generated human-readable catalog (UC-RS-018).
 id: REUSE-WP-0004-T01
 status: done
 priority: high
+state_hub_task_id: "750e7fd6-f9b3-4945-a2f5-9a405ca3af6b"
 ```
 
 Add `.gitea/workflows/ci.yml` that runs on push and pull requests to `main`.
@@ -35,6 +37,7 @@ Install the package and run `reuse-surface validate`. Document the workflow in
 id: REUSE-WP-0004-T02
 status: done
 priority: high
+state_hub_task_id: "8c5febb0-758d-4983-958c-093e5c481f2c"
 ```
 
 Add `reuse-surface overlaps` that flags potential duplicate or overlapping
@@ -47,6 +50,7 @@ Document usage in `registry/README.md` and `tools/README.md`.
 id: REUSE-WP-0004-T03
 status: done
 priority: medium
+state_hub_task_id: "2cae7d58-b943-4ef6-b404-2ad126450e0a"
 ```
 
 Add `reuse-surface catalog` that generates `docs/CapabilityCatalog.md` and
@@ -59,6 +63,7 @@ and show maturity vectors.
 id: REUSE-WP-0004-T04
 status: done
 priority: medium
+state_hub_task_id: "a9660e01-81af-45fb-8d51-4f16fbaa94c2"
 ```
 
 Update `SCOPE.md`, `tools/README.md`, and `docs/IntentScopeGapAnalysis.md` to