fix: point icon URLs at i.exil.es CDN

The bare exil.es domain stopped serving /icons/ when it switched to a
static landing page (sub-net ansible commit 10c742c). Icons live at
i.exil.es. Replace hardcoded https://exil.es/icons/ refs in TalentCell
fallback paths and the NEXT_PUBLIC_ICON_BASE default in TalentBuilder.

talent-builder/src/components/TalentBuilder.tsx

@@ -13,7 +13,7 @@ export function TalentBuilder() {
       const override = params.get("iconBase");
       if (override) return ensureTrailingSlash(override);
     }
-    const envBase = (process.env.NEXT_PUBLIC_ICON_BASE as string | undefined) || "https://exil.es/icons/talents/";
+    const envBase = (process.env.NEXT_PUBLIC_ICON_BASE as string | undefined) || "https://i.exil.es/icons/talents/";
     return ensureTrailingSlash(envBase);
   });
   const [className, setClassName] = useState<string>(() => {

talent-builder/src/components/TalentCell.tsx

@@ -25,7 +25,7 @@ export function TalentCell({ talent, iconBaseUrl }: Props) {
   const filename = iconTextureToFilename(talent.iconTexture);
   // Special case for achievement icons
   const icon = filename === "achievement_garrisonfollower_epic.png"
-    ? "https://exil.es/icons/achievements/" + filename
+    ? "https://i.exil.es/icons/achievements/" + filename
     : iconBaseUrl + filename;
   const fallbackIcon = iconBaseUrl + "inv_misc_questionmark.png";
   const rank = `${talent.currentRank}/${talent.maxRank}`;
@@ -64,7 +64,7 @@ export function TalentCell({ talent, iconBaseUrl }: Props) {
             // Try alternative paths for missing icons
             if (currentSrc === icon && filename.startsWith("inv_")) {
               // Try /icons/items/ for inventory icons
-              el.src = "https://exil.es/icons/items/" + filename;
+              el.src = "https://i.exil.es/icons/items/" + filename;
             } else if (currentSrc !== fallbackIcon) {
               // Try fallback icon
               el.onerror = null;