Normalize agent instructions and workplan frontmatter (STATE-WP-0067)

- Align agent files with on-disk workplan prefixes (infer from workplan ids)
- Set workplan domain to registered domain_slug; add topic_slug where applicable
- Repair frontmatter delimiter formatting; migrate legacy task status literals
- Regenerate AGENTS.md, CLAUDE.md, and .claude/rules from State Hub templates

workplans/IHUB-WP-0015-local-deployment-intro-ui.md

@@ -2,7 +2,7 @@
 id: IHUB-WP-0015
 type: workplan
 title: "Local Deployment — Intro and Tutorial Web UI"
-domain: inter_hub
+domain: infotech
 repo: inter-hub
 status: done
 owner: custodian
@@ -11,8 +11,7 @@ created: "2026-04-03"
 updated: "2026-04-03"
 state_hub_sync: done
 state_hub_workstream_id: "946d50b8-441c-4c0a-b1a0-2a4fb3340d16"
-depends_on: IHUB-WP-0014
----
+depends_on: IHUB-WP-0014---
 
 # IHUB-WP-0015 — Local Deployment: Intro and Tutorial Web UI