Add ItemIcon component for rendering Minecraft item icons

web/client/src/components/ItemIcon.jsx

@@ -0,0 +1,42 @@
+import React, { useState } from 'react';
+import { getItemEmoji } from '../utils/itemUtils';
+import './ItemIcon.css';
+
+/**
+ * Renders a Minecraft item icon.
+ * First tries to load the actual item sprite from mc-heads.net.
+ * Falls back to an emoji representation if the image fails.
+ */
+function ItemIcon({ itemName, size = 32 }) {
+  const [imgError, setImgError] = useState(false);
+
+  if (!itemName) {
+    return <span className="item-icon-emoji" style={{ fontSize: size * 0.7 }}>📦</span>;
+  }
+
+  // Strip namespace for the icon URL
+  const shortName = itemName.replace(/^[a-z0-9_]+:/, '');
+
+  if (imgError) {
+    return (
+      <span className="item-icon-emoji" style={{ fontSize: size * 0.7 }}>
+        {getItemEmoji(itemName)}
+      </span>
+    );
+  }
+
+  return (
+    <img
+      className="item-icon-img"
+      src={`https://mc-heads.net/item/${shortName}/${size}`}
+      alt={shortName}
+      width={size}
+      height={size}
+      loading="lazy"
+      onError={() => setImgError(true)}
+      style={{ imageRendering: 'pixelated' }}
+    />
+  );
+}
+
+export default ItemIcon;