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/templates/src/components/checkout/PaymentDetails.tsx

@@ -0,0 +1,57 @@
+import { CreditCard, Smartphone } from 'lucide-react';
+
+export default function PaymentDetails() {
+  return (
+    <div className="space-y-4">
+      <h3 className="font-medium text-lg mb-4">รายละเอียดการชำระเงิน</h3>
+      
+      <div className="border rounded-lg p-4">
+        <div className="flex items-center gap-3 mb-4">
+          <CreditCard className="w-5 h-5 text-gray-600" />
+          <span className="font-medium">บัตรเครดิต/เดบิต</span>
+        </div>
+        <div className="space-y-3">
+          <input
+            type="text"
+            placeholder="หมายเลขบัตร"
+            className="w-full border rounded-lg px-3 py-2"
+          />
+          <div className="grid grid-cols-2 gap-3">
+            <input
+              type="text"
+              placeholder="MM/YY"
+              className="border rounded-lg px-3 py-2"
+            />
+            <input
+              type="text"
+              placeholder="CVV"
+              className="border rounded-lg px-3 py-2"
+            />
+          </div>
+          <input
+            type="text"
+            placeholder="ชื่อบนบัตร"
+            className="w-full border rounded-lg px-3 py-2"
+          />
+        </div>
+      </div>
+
+      <div className="border rounded-lg p-4">
+        <div className="flex items-center gap-3">
+          <Smartphone className="w-5 h-5 text-gray-600" />
+          <span className="font-medium">QR Code / PromptPay</span>
+        </div>
+        <p className="text-sm text-gray-500 mt-2">
+          ชำระเงินผ่าน QR Code ด้วยแอปธนาคารหรือ PromptPay
+        </p>
+      </div>
+
+      <div className="flex items-center gap-2 text-sm text-gray-500">
+        <svg className="w-4 h-4" fill="currentColor" viewBox="0 0 20 20">
+          <path fillRule="evenodd" d="M5 9V7a5 5 0 0110 0v2a2 2 0 012 2v5a2 2 0 01-2 2H5a2 2 0 01-2-2v-5a2 2 0 012-2zm8-2v2H7V7a3 3 0 016 0z" clipRule="evenodd" />
+        </svg>
+        <span>การชำระเงินของคุณปลอดภัยและเข้ารหัส 256-bit SSL</span>
+      </div>
+    </div>
+  );
+}