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/rules/stack-and-commands.md

@@ -1,28 +1,19 @@
-## Stack and Commands
+## Stack
 
-**Language:** Markdown / YAML coordination artefacts
-**Package manager:** none
-**Test runner:** none
+<!-- TODO: Fill in language, frameworks, and key dependencies -->
+- **Language:**
+- **Key deps:**
 
-### Essential commands
+## Dev Commands
 
 ```bash
-# Sync workplans to state-hub after edits
-cd ~/state-hub && make fix-consistency REPO=coulomb-loop
+# TODO: Fill in the standard commands for this repo
 
-# Validate reuse-surface registry (when entries exist)
-reuse-surface validate
+# Install dependencies
 
-# Supplier CLI on target repos (not this repo)
-kaizen-agentic schedule validate --target /path/to/target-repo
-kaizen-agentic schedule prepare coach --target /path/to/target-repo
+# Run tests
+
+# Lint / type check
+
+# Build / package (if applicable)
 ```
-
-### Session orientation
-
-```bash
-# MCP when available
-get_domain_summary("coulomb_social")
-```
-
-Fallback: `.custodian-brief.md`