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

@@ -1,17 +1,12 @@
-{
-  "agents": {
-    "coach": {
-      "path": "agents/agent-coach.md",
-      "enabled": true
-    },
-    "optimization": {
-      "path": "agents/agent-optimization.md",
-      "enabled": true
-    },
-    "scope-analyst": {
-      "path": "agents/agent-scope-analyst.md",
-      "enabled": true
-    }
-  }
-}
+# reuse-surface — Claude Code Instructions
+
+@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