feat: Import 35+ skills, merge duplicates, add openclaw installer

Major updates:
- Added 35+ new skills from awesome-opencode-skills and antigravity repos
- Merged SEO skills into seo-master
- Merged architecture skills into architecture
- Merged security skills into security-auditor and security-coder
- Merged testing skills into testing-master and testing-patterns
- Merged pentesting skills into pentesting
- Renamed website-creator to thai-frontend-dev
- Replaced skill-creator with github version
- Removed Chutes references (use MiniMax API instead)
- Added install-openclaw-skills.sh for cross-platform installation
- Updated .env.example with MiniMax API credentials

skills/seo-master/assets/ecommerce.md

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+<!-- Updated: 2026-02-07 -->
+# E-commerce SEO Strategy Template
+
+## Industry Characteristics
+
+- High transaction intent
+- Product comparison behavior
+- Price sensitivity
+- Visual-first decision making
+- Seasonal demand patterns
+- Competitive marketplace listings
+
+## Recommended Site Architecture
+
+```
+/
+├── Home
+├── /collections (or /categories)
+│   ├── /category-1
+│   │   ├── /subcategory-1
+│   │   └── ...
+│   ├── /category-2
+│   └── ...
+├── /products
+│   ├── /product-1
+│   ├── /product-2
+│   └── ...
+├── /brands
+│   ├── /brand-1
+│   └── ...
+├── /sale (or /deals)
+├── /new-arrivals
+├── /best-sellers
+├── /gift-guide
+├── /blog
+│   ├── /buying-guides
+│   ├── /how-to
+│   └── /trends
+├── /about
+├── /contact
+├── /shipping
+├── /returns
+└── /faq
+```
+
+## Schema Recommendations
+
+| Page Type | Schema Types |
+|-----------|-------------|
+| Product Page | Product, Offer, AggregateRating, Review, BreadcrumbList |
+| Category Page | CollectionPage, ItemList, BreadcrumbList |
+| Brand Page | Brand, Organization |
+| Blog | Article, BlogPosting |
+
+### Additional E-commerce Schema (2025)
+
+- **ProductGroup**: Use for products with variants (size, color). Wraps individual Product entries with `variesBy` and `hasVariant` properties. See `schema/templates.json`.
+- **Certification**: For product certifications (Energy Star, safety, organic). Replaced EnergyConsumptionDetails (April 2025). Use `hasCertification` on Product.
+- **OfferShippingDetails**: Include shipping rate, handling time, and transit time. Critical for Merchant Center eligibility.
+
+> **Google Merchant Center Free Listings:** Products can appear in Google Shopping for free. Ensure Product structured data is in the initial server-rendered HTML (not JavaScript-injected) with required properties: `name`, `image`, `price`, `priceCurrency`, `availability`.
+
+> **JS Rendering Note:** Product structured data should be in initial server-rendered HTML: not dynamically injected via JavaScript (per December 2025 Google JS SEO guidance).
+
+### Product Schema Example
+```json
+{
+  "@context": "https://schema.org",
+  "@type": "Product",
+  "name": "Product Name",
+  "image": ["https://example.com/product.jpg"],
+  "description": "Product description",
+  "sku": "SKU123",
+  "brand": {
+    "@type": "Brand",
+    "name": "Brand Name"
+  },
+  "offers": {
+    "@type": "Offer",
+    "price": "99.99",
+    "priceCurrency": "USD",
+    "availability": "https://schema.org/InStock",
+    "url": "https://example.com/product"
+  },
+  "aggregateRating": {
+    "@type": "AggregateRating",
+    "ratingValue": "4.5",
+    "reviewCount": "42"
+  }
+}
+```
+
+## Content Requirements
+
+### Product Pages (min 400 words)
+- Unique product descriptions (not manufacturer copy)
+- Feature highlights
+- Use cases / who it's for
+- Specifications table
+- Size/fit guide (for apparel)
+- Care instructions
+- Customer reviews
+
+### Category Pages (min 400 words)
+- Category introduction
+- Buying guide excerpt
+- Featured products
+- Subcategory links
+- Filter/sort options
+
+## Technical Considerations
+
+### Pagination
+- Use rel="next"/rel="prev" or load-more
+- Ensure all products are crawlable
+- Canonical to main category page
+
+### Faceted Navigation
+- Noindex filter combinations that create duplicate content
+- Use canonical tags appropriately
+- Ensure popular filters are indexable
+
+### Product Variations
+- Single URL for parent product with variants
+- Or separate URLs with canonical to parent
+- Structured data for all variants
+
+## Content Priorities
+
+### High Priority
+1. Category pages (top level)
+2. Best-selling product pages
+3. Homepage
+4. Buying guides for main categories
+
+### Medium Priority
+1. Subcategory pages
+2. Brand pages
+3. Comparison content
+4. Seasonal landing pages
+
+### Blog Topics
+- Buying guides ("How to Choose...")
+- Product comparisons
+- Trend reports
+- Use cases and inspiration
+- Care and maintenance guides
+
+## Key Metrics to Track
+
+- Revenue from organic search
+- Product page rankings
+- Category page rankings
+- Click-through rate (rich results)
+- Average order value from organic
+
+## Generative Engine Optimization (GEO) for E-commerce
+
+AI search platforms increasingly answer product queries directly. Optimize for AI citation:
+
+- [ ] Include clear product specifications, dimensions, materials in structured format
+- [ ] Use ProductGroup schema for variant products
+- [ ] Provide original product photography with descriptive alt text
+- [ ] Include genuine customer review content (AggregateRating schema)
+- [ ] Maintain consistent product entity data across all platforms (site, Amazon, Merchant Center)
+- [ ] Structure comparison content with clear feature tables AI can parse
+- [ ] Add detailed FAQ content for common product questions