refactor(skills): Restructure skills to dual-platform architecture

Major refactoring of ourdigital-custom-skills with new numbering system:

## Structure Changes
- Each skill now has code/ (Claude Code) and desktop/ (Claude Desktop) versions
- New progressive numbering: 01-09 General, 10-19 SEO, 20-29 GTM, 30-39 OurDigital, 40-49 Jamie

## Skill Reorganization
- 01-notion-organizer (from 02)
- 10-18: SEO tools split into focused skills (technical, on-page, local, schema, vitals, gsc, gateway)
- 20-21: GTM audit and manager
- 30-32: OurDigital designer, research, presentation
- 40-41: Jamie brand editor and audit

## New Files
- .claude/commands/: Slash command definitions for all skills
- CLAUDE.md: Updated with new skill structure documentation
- REFACTORING_PLAN.md: Migration documentation
- COMPATIBILITY_REPORT.md, SKILLS_COMPARISON.md: Analysis docs

## Removed
- Old skill directories (02-05, 10-14, 20-21 old numbering)
- Consolidated into new structure with _archive/ for reference

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

ourdigital-custom-skills/17-seo-gateway-architect/code/CLAUDE.md

@@ -0,0 +1,65 @@
+# CLAUDE.md
+
+## Overview
+
+SEO gateway page strategist for Korean medical/service websites. Creates keyword strategies, content architecture, and technical SEO plans.
+
+## Quick Start
+
+```bash
+pip install -r scripts/requirements.txt
+
+# Keyword analysis
+python scripts/keyword_analyzer.py --topic "눈 성형" --market "강남"
+```
+
+## Scripts
+
+| Script | Purpose |
+|--------|---------|
+| `keyword_analyzer.py` | Analyze keywords, search volume, competitor gaps |
+
+## Keyword Analyzer
+
+```bash
+# Basic analysis
+python scripts/keyword_analyzer.py --topic "눈 성형"
+
+# With location targeting
+python scripts/keyword_analyzer.py --topic "눈 성형" --market "강남" --output strategy.json
+
+# Competitor analysis
+python scripts/keyword_analyzer.py --topic "눈 성형" --competitors url1,url2
+```
+
+## Output
+
+Generates strategic document with:
+- Primary keyword + monthly search volume
+- LSI keywords (7-10)
+- User intent distribution
+- Competitor gap analysis
+- Content architecture (H1-H3 structure)
+- Technical SEO checklist
+
+## Templates
+
+See `templates/` for:
+- `keyword-research-template.md`
+- `content-architecture-template.md`
+- `seo-checklist-template.md`
+
+## Workflow
+
+1. Run keyword analyzer for target topic
+2. Review search volume and intent data
+3. Use output to plan content architecture
+4. Hand off to `18-seo-gateway-builder` for content generation
+
+## Configuration
+
+```bash
+# Optional: API keys for enhanced data
+GOOGLE_API_KEY=xxx
+NAVER_API_KEY=xxx
+```