Update skills: add website-creator, mql-developer, ecommerce-astro

Changes:
- Add FAL_KEY and GEMINI_API_KEY to .env.example
- Update picture-it to use ~/.config/opencode/.env (unified creds)
- Remove shodh-memory skill (no longer used)
- Remove alphaear-* skills (deprecated)
- Remove thai-frontend-dev skill (replaced by website-creator)
- Remove theme-factory skill
- Add mql-developer skill (MQL5 trading)
- Add ecommerce-astro skill (Astro e-commerce)
- Add website-creator skill (Next.js + Payload CMS)
- Update install script for new skills

skills/ecommerce-astro/scripts/.env.example

@@ -0,0 +1,17 @@
+# Supabase Configuration
+SUPABASE_URL=https://your-project.supabase.co
+SUPABASE_ANON_KEY=your-anon-key
+SUPABASE_SERVICE_ROLE_KEY=your-service-role-key
+
+# PaySo Payment Gateway (Thai Payment)
+PAYSOLO_MERCHANT_ID=your-merchant-id
+PAYSOLO_API_KEY=your-api-key
+PAYSOLO_SECRET_KEY=your-secret-key
+PAYSOLO_CALLBACK_URL=https://yourdomain.com/api/webhooks/payso
+
+# JWT Authentication
+JWT_SECRET=your-super-secret-jwt-key-min-32-chars-here
+
+# Site Configuration
+SITE_URL=https://yourdomain.com
+SITE_NAME=My Store