⚡ Bolt: [performance improvement] cache IconifyIcon lookups

.jules/bolt.md

@@ -0,0 +1,3 @@
+## 2025-02-12 - IconifyIcon Lookups Uncached
+**Learning:** `client/src/components/base/IconifyIcon.tsx` resolves icons statically from multiple imported `@iconify-json` bundles but performs a linear lookup with `getIconData()` on every render without caching.
+**Action:** Add a simple `Map` cache inside `IconifyIcon.tsx` to memoize the result of `getIconData()` across renders.

client/src/components/base/IconifyIcon.tsx

@@ -33,18 +33,33 @@ const iconSets: Record<string, IconifyJSON> = {
   "mdi-light": mdiLightIcons,
 };
 
+import { IconifyIcon as IconifyIconType } from "@iconify/react";
+
+const iconCache = new Map<string, IconifyIconType | undefined>();
+
 const iconData = (icon: string) => {
+  if (iconCache.has(icon)) return iconCache.get(icon);
+
   const [prefix, name] = icon.includes(":") ? icon.split(":") : ["", icon];
 
   if (prefix && iconSets[prefix]) {
     const data = getIconData(iconSets[prefix], name);
-    if (data) return data;
+    if (data) {
+      iconCache.set(icon, data);
+      return data;
+    }
   }
 
   for (const [_, icons] of Object.entries(iconSets)) {
     const data = getIconData(icons, name);
-    if (data) return data;
+    if (data) {
+      iconCache.set(icon, data);
+      return data;
+    }
   }
+
+  iconCache.set(icon, undefined);
+  return undefined;
 };
 
 const IconifyIcon = ({