feat(registry): scaffold HR workflow registry with assessment loop

Add workflow entries for INTENT assessment and automation-roadmap phases,
workflows.yaml index, assessment-loop stages, and capability.hr.workflow-catalog
for reuse-surface federation. Completes HUMAN-WP-0002.

registry/indexes/capabilities.yaml

@@ -1,4 +1,20 @@
 version: 1
-updated: '2026-06-16'
-domain: helix_forge
-capabilities: []
+updated: '2026-06-24'
+domain: consumer
+capabilities:
+- id: capability.hr.workflow-catalog
+  name: HR Workflow Catalog
+  summary: Markdown-first registry of HR planning workflows with an iterative
+    assessment loop tied to INTENT phases.
+  vector: D3 / A1 / C1 / R0
+  domain: consumer
+  status: draft
+  owner: human-resources
+  path: registry/capabilities/capability.hr.workflow-catalog.md
+  tags:
+  - hr
+  - workflows
+  - assessment
+  - planning
+  consumption_modes:
+  - informational