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>

custom-skills/11-seo-comprehensive-audit/code/gotcha/SLA-shillahotels.md

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+# SLA — shillahotels.com Gotchas
+
+Client: **SLA** (Shilla Hotels & Resorts / 신라호텔)
+Domain: shillahotels.com
+
+---
+
+## 1. www1 / www2 Are Dev/Stage Hosts, NOT Production
+
+**Date discovered**: 2026-03-20
+**Context**: SLA new integrated website under construction
+
+The Shilla Hotels domain uses numbered subdomains for development environments:
+
+| Subdomain | Purpose | Status |
+|-----------|---------|--------|
+| `www1.shillahotels.com` | Development | Active — deployed intermittently |
+| `www2.shillahotels.com` | Staging | Active — deployed intermittently |
+| `www.shillahotels.com` | Production (current) | Live |
+| TBD (new integrated site) | Production (future) | **Target launch: end of June 2026** |
+
+**Do NOT run technical SEO audits against www1 or www2** unless specifically instructed. These are pre-production environments and will have:
+- No robots.txt
+- No XML sitemap
+- Incomplete meta tags
+- Missing canonical/hreflang tags
+
+These are expected states for dev/stage, not audit findings.
+
+### When to Scan
+
+The client will notify when www1/www2 need technical SEO element checks. Do NOT proactively audit these subdomains.
+
+## 2. No robots.txt or Sitemap on Dev/Stage Hosts
+
+**Date discovered**: 2026-03-20
+
+robots.txt and sitemap.xml are intentionally not deployed to www1 and www2. This is expected for pre-production environments. Do NOT flag as issues.
+
+Wait for client instruction before scanning technical SEO elements on these hosts.