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/thai-frontend-dev/scripts/.env.example

@@ -0,0 +1,19 @@
+# Website Configuration
+# Fill these after generating your website
+
+# Umami Analytics (Optional - Self-hosted)
+# Get from: Your Umami dashboard → Settings → Websites
+UMAMI_WEBSITE_ID=
+UMAMI_DOMAIN=analytics.example.com
+
+# Admin Dashboard
+# Change this before deploying to production!
+ADMIN_PASSWORD=(auto-generated from folder name)
+
+# Database (Optional - for production with Turso)
+# ASTRO_DB_REMOTE_URL=libsql://your-db.turso.io
+# ASTRO_DB_APP_TOKEN=your-turso-token
+
+# Site Configuration
+SITE_URL=https://your-domain.com
+SITE_NAME="Your Website Name"