Restructure skill numbering: SEO 11-30, GTM 60-69, reserve 19-28 for future skills

Renumber 12 existing skills to new ranges:
- SEO: 11→13, 12→18, 13→16, 14→17, 15→14, 16→15, 17→29, 18→30, 19→12
- GTM: 20→60, 21→61, 22→62

Update cross-references in gateway architect/builder skills, GTM guardian
README, CLAUDE.md (skill tables + directory layout), and AGENTS.md
(domain routing ranges).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

custom-skills/18-seo-local-audit/desktop/SKILL.md

@@ -0,0 +1,125 @@
+---
+name: seo-local-audit
+description: |
+  Local business SEO auditor for NAP consistency, Google Business Profile, and citations.
+  Triggers: local SEO, NAP audit, Google Business Profile, GBP optimization, local citations.
+---
+
+# SEO Local Audit
+
+## Purpose
+
+Audit local business SEO: NAP (Name, Address, Phone) consistency, Google Business Profile optimization, local citations, and LocalBusiness schema markup.
+
+## Core Capabilities
+
+1. **NAP Consistency** - Cross-platform verification
+2. **GBP Optimization** - Profile completeness check
+3. **Citation Audit** - Directory presence
+4. **Schema Validation** - LocalBusiness markup
+
+## MCP Tool Usage
+
+```
+mcp__firecrawl__scrape: Extract NAP from website
+mcp__perplexity__search: Find citations and directories
+mcp__notion__create-page: Save audit findings
+```
+
+## Workflow
+
+### 1. Gather Business Info
+Collect from client:
+- Business name (exact)
+- Full address
+- Phone number (local preferred)
+- Website URL
+- GBP listing URL
+
+### 2. Website NAP Check
+Scrape website for NAP mentions:
+- Header/footer
+- Contact page
+- About page
+- Schema markup
+
+### 3. Citation Discovery
+Search for business mentions:
+- "[Business Name] [City]"
+- Phone number search
+- Address search
+
+### 4. GBP Review
+Manual checklist:
+- Profile completeness
+- Category accuracy
+- Photo presence
+- Review responses
+- Post recency
+
+### 5. Schema Check
+Validate LocalBusiness markup presence and accuracy.
+
+## GBP Optimization Checklist
+
+- [ ] Business name matches website
+- [ ] Complete address with suite/unit
+- [ ] Local phone number (not toll-free)
+- [ ] Accurate business hours
+- [ ] Primary + secondary categories set
+- [ ] Business description complete
+- [ ] 10+ photos uploaded
+- [ ] Recent post (within 7 days)
+- [ ] Reviews responded to
+
+## Citation Priority
+
+| Platform | Priority |
+|----------|----------|
+| Google Business Profile | Critical |
+| Apple Maps | High |
+| Bing Places | High |
+| Yelp | High |
+| Facebook | Medium |
+| Industry directories | Medium |
+
+## Output Format
+
+```markdown
+## Local SEO Audit: [Business]
+
+### NAP Consistency: X/10
+| Source | Name | Address | Phone |
+|--------|------|---------|-------|
+| Website | ✓/✗ | ✓/✗ | ✓/✗ |
+| GBP | ✓/✗ | ✓/✗ | ✓/✗ |
+
+### GBP Score: X/10
+[Checklist results]
+
+### Citations Found: X
+- Consistent: X
+- Inconsistent: X
+
+### LocalBusiness Schema
+- Present: Yes/No
+- Valid: Yes/No
+
+### Priority Actions
+1. [Fix recommendations]
+```
+
+## Limitations
+
+- GBP data requires manual access
+- Citation discovery limited to searchable sources
+- Cannot update external directories
+
+## Notion Output (Required)
+
+All audit reports MUST be saved to OurDigital SEO Audit Log:
+- **Database ID**: `2c8581e5-8a1e-8035-880b-e38cefc2f3ef`
+- **Properties**: Issue (title), Site (url), Category, Priority, Found Date, Audit ID
+- **Language**: Korean with English technical terms
+- **Audit ID Format**: [TYPE]-YYYYMMDD-NNN
+