refactor: Reorganize skill numbering and update documentation

Skill Numbering Changes:
- 01-03: OurDigital core (was 30-32)
- 31-32: Notion tools (was 01-02)
- 99_archive: Renamed from _archive for sorting

New Files:
- AGENTS.md: Claude Code agent routing guide
- requirements.txt for 00-claude-code-setting, 32-notion-writer, 43-jamie-youtube-manager

Documentation Updates:
- CLAUDE.md: Updated skill inventory (23 skills)
- AUDIT_REPORT.md: Current completion status (91%)
- Archived REFACTORING_PLAN.md (most tasks complete)

Removed:
- ga-agent-skills/ (moved to separate repo ~/Project/dintel-ga4-agent)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

custom-skills/01-ourdigital-research/code/references/ghost-api-config.md

@@ -0,0 +1,74 @@
+# Ghost Admin API Configuration
+
+## Configured Channels
+
+| Channel | Domain | API Status |
+|---------|--------|------------|
+| blog.ourdigital.org | Korean main blog | ✅ Configured |
+| journal.ourdigital.org | English journal | ✅ Configured |
+| ourstory.day | Personal essays | ✅ Configured |
+
+## API Endpoints
+
+Base URL pattern: `https://{domain}/ghost/api/admin/`
+
+### Authentication
+Ghost Admin API uses JWT tokens generated from Admin API keys.
+
+```
+Admin API Key Format: {id}:{secret}
+- id: 24 hex characters
+- secret: 64 hex characters
+```
+
+### Key Endpoints
+
+| Endpoint | Method | Purpose |
+|----------|--------|---------|
+| `/posts/` | POST | Create new post |
+| `/posts/{id}/` | PUT | Update existing post |
+| `/images/upload/` | POST | Upload image |
+| `/tags/` | GET/POST | Manage tags |
+
+### Post Creation Payload
+
+```json
+{
+  "posts": [{
+    "title": "Post Title",
+    "html": "<p>Content in HTML</p>",
+    "status": "draft",
+    "tags": [{"name": "tag1"}, {"name": "tag2"}],
+    "feature_image": "https://...",
+    "meta_title": "SEO Title",
+    "meta_description": "SEO Description",
+    "og_title": "Social Title",
+    "og_description": "Social Description",
+    "published_at": "2024-01-15T09:00:00.000Z"
+  }]
+}
+```
+
+### Status Options
+- `draft`: Save without publishing
+- `published`: Publish immediately
+- `scheduled`: Schedule for future (requires `published_at`)
+
+## Future Automation Opportunities
+
+### Zapier Integration Points
+1. **Trigger**: New Notion page in "Working with AI" → Create Ghost draft
+2. **Trigger**: Ghost post published → Share to social channels
+3. **Trigger**: New MD file in iCloud folder → Create Ghost draft
+
+### n8n Workflow Ideas
+1. Research complete → Auto-create drafts across all relevant channels
+2. Scheduled publishing queue management
+3. Cross-posting between Ghost instances
+
+## Security Notes
+
+- API keys stored in environment variables
+- Never expose keys in code or logs
+- Rotate keys if compromised
+- Use separate keys for different integrations