docs: sync README, CLAUDE.md, AGENTS.md with latest skill changes

- Add 93-tui-designer to all doc files and directory layouts
- Remove phantom 42-jamie-journal-editor (directory never existed)
- Update GTM directory names: 61-gtm-manager → 61-gtm-editor,
  62-gtm-guardian → 62-gtm-validator in CLAUDE.md layout
- Fix skill count: README 64→62, AGENTS.md 52→62
- Add .claude/commands/ slash command definitions
- Add SEO comprehensive audit gotcha notes (JHR, SLA)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.claude/commands/gtm-guardian.md

@@ -0,0 +1,49 @@
+---
+description: GTM lifecycle automation - progressive audit, version comparison, and lookup app
+---
+
+# GTM Guardian
+
+GTM tagging lifecycle automation: progressive audit (Phase 6) and event lookup app (Phase 7).
+
+## Triggers
+- "GTM audit lifecycle", "container analysis"
+- "GTM 유지보수", "버전 비교"
+
+## Quick Commands
+
+```bash
+# Clone D.intelligence GTM Toolkit
+git clone https://github.com/ourdigital/dintel-gtm-agent.git
+
+# Container analysis
+python analyze_container.py GTM-XXXXXX.json --output report.md
+
+# Version comparison
+python diff_versions.py v1.json v2.json --output diff.md
+
+# Unused element detection
+python find_unused.py container.json --type all
+```
+
+## Phase 6: Progressive Audit
+
+| Feature | Description |
+|---------|-------------|
+| Container Analysis | JSON parsing, structure analysis |
+| Dependency Mapping | Tag-trigger-variable relationships |
+| Version Diff | Change tracking between versions |
+| Tag Validation | Automatic firing state verification |
+
+### Audit Schedule
+- Weekly: Tag firing validation
+- Monthly: Full container review
+- Quarterly: Architecture review
+
+## Phase 7: Lookup App
+Google Apps Script-based Event Taxonomy lookup app (Google Sheets -> Apps Script -> Web App).
+
+## Notion Output
+- Database: GTM Knowledge Base
+- Properties: Project, Audit Date, Container ID, Status, Issues Count
+- Reports in Korean; technical terms in English