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

.env.example

@@ -10,6 +10,11 @@
 MINIMAX_API_KEY=
 MINIMAX_API_BASE=https://api.minimax.io/v1
 
+# ===========================================
+# FAL AI (picture-it image generation)
+# ===========================================
+FAL_KEY=
+
 # ===========================================
 # GITEA (Optional - Git sync)
 # ===========================================
@@ -38,14 +43,6 @@ UMAMI_PASSWORD=
 ADMIN_PASSWORD=
 UMAMI_DOMAIN=analytics.example.com
 
-# ===========================================
-# SHODH MEMORY (Optional - Persistent context)
-# ===========================================
-SHODH_API_KEY=
-SHODH_HOST=http://localhost
-SHODH_PORT=3030
-SHODH_USER_ID=default
-
 # ===========================================
 # GOOGLE ANALYTICS 4 (Optional)
 # ===========================================
@@ -71,6 +68,11 @@ DATAFORSEO_BASE_URL=https://api.dataforseo.com
 # JINA API - Content extraction
 JINA_API_KEY=
 
+# ===========================================
+# DESIGN SKILLS (Logo, CIP, Icon generation)
+# ===========================================
+GEMINI_API_KEY=
+
 # LLM Config (MiniMax default, OpenAI compatible)
 LLM_PROVIDER=minimax
 LLM_MODEL=MiniMax-Text-01