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

CLAUDE.md

@@ -1,21 +1,12 @@
-# email-connect - Claude Code Instructions
+# email-connect — Claude Code Instructions
 
-This repository uses `AGENTS.md` as the canonical local agent instruction file.
-Claude Code agents should read `AGENTS.md` first and follow the same State Hub
-identity, workplan convention, and repo-specific semantic guardrails.
-
-State Hub identity:
-
-- Domain: `custodian`
-- Repo slug: `email-connect`
-- Topic ID: `cee7bedf-2b48-46ef-8601-006474f2ad7a`
-- Workplan prefix: `EMAIL-WP-`
-
-Core product rule: email events are evidence, not result satisfaction. Do not
-treat provider acceptance, MX acceptance, inbox placement, opens, clicks,
-replies, complaints, or suppressions as proof of human awareness or business
-outcome completion.
-
-Start with `INTENT.md`, then `spec/ProductRequirementsDocument.md`, then the
-active files under `workplans/`.
+@SCOPE.md
+@.claude/rules/repo-identity.md
+@.claude/rules/session-protocol.md
+@.claude/rules/first-session.md
+@.claude/rules/workplan-convention.md
+@.claude/rules/stack-and-commands.md
+@.claude/rules/architecture.md
+@.claude/rules/repo-boundary.md
 @.claude/rules/credential-routing.md
+@.claude/rules/agents.md