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/CE-WP-0005-demo-sessions-zip-archive.md

@@ -2,7 +2,7 @@
 id: CE-WP-0005
 type: workplan
 title: "Demo app — Named sessions, document uploads, ZIP export/import"
-domain: citation_evidence
+domain: infotech
 repo: citation-evidence
 repo_id: a677c189-b4e2-4f2a-9e48-faa482c277e6
 topic_slug: citation_evidence_mvp
@@ -16,8 +16,7 @@ depends_on_workplan: CE-WP-0004
 spec_refs:
   - wiki/ProductRequirementsDocument.md
   - wiki/ArchitectureOverview.md
-  - wiki/SharedContracts.md
----
+  - wiki/SharedContracts.md---
 
 # CE-WP-0005 — Demo App: Sessions + Uploads + ZIP Archive
 
@@ -74,7 +73,6 @@ T05 (ADR-0008 + SessionArchive schema)
 
 T03 and T04 can land in either order once T01+T02 are done. T06 and T07
 can be parallelised within T05.
-
 ---
 
 ## T01 — Session model + service + per-session engine snapshots