fix(supporters): resolve avatars by hex pubkey (was passing npub to useAuthor)

src/pages/SupportersPage.tsx

@@ -22,6 +22,17 @@ const ANGOR_PROJECT_URL = 'https://angor.io/project/angor1qtunna00uqyx52rr0nvqa0
 const SUPPORTERS_SINCE = Math.floor(Date.UTC(2025, 11, 1) / 1000); // 2025-12-01
 const VISIBLE_LIMIT = 21;
 
+/** npub → hex pubkey (useAuthor queries relays by HEX authors). */
+function npubToHex(npub?: string): string | undefined {
+  if (!npub) return undefined;
+  try {
+    const d = nip19.decode(npub);
+    return d.type === 'npub' ? d.data : undefined;
+  } catch {
+    return undefined;
+  }
+}
+
 // ─── Static data — edit these arrays to add/remove entries ──────────────────
 
 interface Collaborator {
@@ -233,6 +244,7 @@ function FriendCard({ friend }: { friend: Friend }) {
 
 interface SupporterEntry {
   key: string;
+  pubkey?: string;
   npub?: string;
   name?: string;
   logo?: string;
@@ -261,7 +273,7 @@ const TIER_RANGE: Record<(typeof TIER_ORDER)[number], string> = {
 };
 
 function MemberAvatar({ entry }: { entry: SupporterEntry }) {
-  const { data } = useAuthor(entry.anonymous ? undefined : entry.npub);
+  const { data } = useAuthor(entry.anonymous ? undefined : entry.pubkey);
   const meta = data?.metadata;
   const name = entry.anonymous
     ? '★'
@@ -321,7 +333,7 @@ function TierLadder({ supporters }: { supporters: SupporterEntry[] }) {
 
 function SupporterRow({ rank, entry }: { rank: number; entry: SupporterEntry }) {
   const { t } = useTranslation();
-  const { data } = useAuthor(entry.anonymous ? undefined : entry.npub);
+  const { data } = useAuthor(entry.anonymous ? undefined : entry.pubkey);
   const meta = data?.metadata;
   const name = entry.anonymous
     ? t('walletUi.supporters.anonymousBacker')
@@ -435,6 +447,7 @@ export default function SupportersPage() {
       const key = (npub || b.url || b.name || `anon-${i}`).toLowerCase();
       map.set(key, {
         key,
+        pubkey: npub ? npubToHex(npub) : undefined,
         npub,
         name: b.anonymous ? undefined : b.name,
         logo: b.anonymous ? undefined : b.logo,
@@ -458,6 +471,7 @@ export default function SupportersPage() {
       } else {
         map.set(npub, {
           key: npub,
+          pubkey: z.pubkey,
           npub,
           sats: z.sats,
           angorSats: 0,