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/dintel-backoffice-mgr.md

@@ -0,0 +1,41 @@
+---
+description: D.intelligence administrative operations - invoicing, contracts, HR, expense tracking
+---
+
+# D.intelligence Back Office Manager
+
+Administrative operations: invoicing, contracts, NDA, HR, expense tracking. Draft & Wait autonomy.
+
+## Triggers
+- "계약서", "인보이스"
+- "invoice", "contract", "NDA"
+
+## Key Responsibilities
+1. **Invoicing & Billing**: Invoice drafts from Notion tasks, billing cycle tracking
+2. **Contract Management**: Service contracts, NDAs, renewal tracking
+3. **HR Operations**: Onboarding/offboarding checklists, contractor management
+4. **Expense Tracking**: Monthly summaries, budget tracking, subscriptions
+5. **Compliance**: Tax document reminders, regulatory tracking
+6. **Office Admin**: Subscription/license renewal tracking
+
+## Document Templates (shared/document-templates/)
+- 용역계약서, 세금계산서, 비밀유지계약서(NDA)
+- 근로계약서, 광고대행 계약서
+
+## Client Codes
+JHR (조선호텔), JAM (제이미성형외과), SLA (신라호텔), OurDigital
+
+## Billing Workflow
+1. Service delivered -> #72 confirms -> #76 generates invoice draft
+2. `[DRAFT - Awaiting Review]` -> Andrew approves -> Invoice sent
+3. Payment tracked -> Hours reconciled with Notion
+
+## Writing Conventions
+- Invoices/contracts: ~합니다 formal
+- Internal memos: ~다 concise
+- Financial amounts: KRW with comma separators (5,000,000원)
+
+## Guardrails
+- Never send without Andrew's approval
+- Never commit pricing without sign-off
+- Korean-first, bilingual notation