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/13-seo-schema-validator/code/CLAUDE.md

@@ -0,0 +1,113 @@
+# CLAUDE.md
+
+## Overview
+
+Structured data validator: extract, parse, and validate JSON-LD, Microdata, and RDFa markup against schema.org vocabulary.
+
+## Quick Start
+
+```bash
+pip install -r scripts/requirements.txt
+python scripts/schema_validator.py --url https://example.com
+```
+
+## Scripts
+
+| Script | Purpose |
+|--------|---------|
+| `schema_validator.py` | Extract and validate structured data |
+| `base_client.py` | Shared utilities |
+
+## Usage
+
+```bash
+# Validate page schema
+python scripts/schema_validator.py --url https://example.com
+
+# JSON output
+python scripts/schema_validator.py --url https://example.com --json
+
+# Validate local file
+python scripts/schema_validator.py --file schema.json
+
+# Check Rich Results eligibility
+python scripts/schema_validator.py --url https://example.com --rich-results
+```
+
+## Supported Formats
+
+| Format | Detection |
+|--------|-----------|
+| JSON-LD | `<script type="application/ld+json">` |
+| Microdata | `itemscope`, `itemtype`, `itemprop` |
+| RDFa | `vocab`, `typeof`, `property` |
+
+## Validation Levels
+
+### 1. Syntax Validation
+- Valid JSON structure
+- Proper nesting
+- No syntax errors
+
+### 2. Schema.org Vocabulary
+- Valid @type values
+- Known properties
+- Correct property types
+
+### 3. Google Rich Results
+- Required properties present
+- Recommended properties
+- Feature-specific requirements
+
+## Schema Types Validated
+
+| Type | Required Properties | Rich Result |
+|------|---------------------|-------------|
+| Article | headline, author, datePublished | Yes |
+| Product | name, offers | Yes |
+| LocalBusiness | name, address | Yes |
+| FAQPage | mainEntity | Yes |
+| Organization | name, url | Yes |
+| BreadcrumbList | itemListElement | Yes |
+| WebSite | name, url | Sitelinks |
+
+## Output
+
+```json
+{
+  "url": "https://example.com",
+  "schemas_found": 3,
+  "schemas": [
+    {
+      "@type": "Organization",
+      "valid": true,
+      "rich_results_eligible": true,
+      "issues": [],
+      "warnings": []
+    }
+  ],
+  "summary": {
+    "valid": 3,
+    "invalid": 0,
+    "rich_results_eligible": 2
+  }
+}
+```
+
+## Issue Severity
+
+| Level | Description |
+|-------|-------------|
+| Error | Invalid schema, blocks rich results |
+| Warning | Missing recommended property |
+| Info | Optimization suggestion |
+
+## Dependencies
+
+```
+extruct>=0.16.0
+jsonschema>=4.21.0
+rdflib>=7.0.0
+lxml>=5.1.0
+requests>=2.31.0
+```