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/seo-technical-audit.md

@@ -0,0 +1,44 @@
+---
+description: Technical SEO audit for robots.txt, XML sitemap, and URL crawlability
+---
+
+# SEO Technical Audit
+
+Crawlability fundamentals: robots.txt validation, XML sitemap analysis, URL accessibility checking.
+
+## Triggers
+- "technical SEO", "crawlability"
+- "robots.txt", "sitemap validation"
+
+## Quick Start
+
+```bash
+python scripts/robots_checker.py --url https://example.com
+python scripts/sitemap_validator.py --url https://example.com/sitemap.xml
+python scripts/sitemap_crawler.py --sitemap https://example.com/sitemap.xml
+```
+
+## Scripts
+
+| Script | Purpose |
+|--------|---------|
+| `robots_checker.py` | Parse robots.txt, test URL rules |
+| `sitemap_validator.py` | Validate XML structure, URL count, lastmod |
+| `sitemap_crawler.py` | Async check URL accessibility, HTTP status |
+
+## Common Issues Detected
+
+| Issue | Severity |
+|-------|----------|
+| Missing sitemap declaration | Medium |
+| Blocking CSS/JS resources | High |
+| URLs returning 404 | High |
+| Exceeds 50,000 URL limit | High |
+| Non-canonical URLs included | Medium |
+
+## Config
+- `CRAWL_DELAY=1.0`, `MAX_CONCURRENT=20`, `REQUEST_TIMEOUT=30`
+
+## Notion Output
+- Database: `2c8581e5-8a1e-8035-880b-e38cefc2f3ef`
+- Korean report, Audit ID: [TYPE]-YYYYMMDD-NNN