Drop donor count from campaign cards to skip the per-receipt tx fan-out

The card footer showed "x donors", sourced from useCampaignDonations'
donorCount. Populating that count required fetching every kind 8333
receipt for the campaign and then verifying each one with a per-receipt
Esplora /tx call — a fan-out that, across a ~200-card grid, hammered
every configured Esplora backend.

Cards only ever render the raised total (the progress bar), which needs
just the single /address balance lookup. Add a receipts option to
useCampaignDonations that skips the receipt fetch and verification
fan-out, and have CampaignCard pass receipts: false. Remove the now-dead
donor-count UI and its unused t()/useTranslation import.

src/components/CampaignCard.tsx

@@ -1,6 +1,5 @@
 import { useMemo, useRef } from 'react';
 import type { ReactNode } from 'react';
-import { useTranslation } from 'react-i18next';
 import { Link } from 'react-router-dom';
 import { HandHeart, ShieldCheck } from 'lucide-react';
 
@@ -164,7 +163,6 @@ interface CampaignCardProps {
  * `<Link>` to the campaign's naddr-based detail route.
  */
 export function CampaignCard({ campaign, variant = 'compact', className, footerBadge, showModerationMenu = true }: CampaignCardProps) {
-  const { t } = useTranslation();
   const { translatedEvent, translateAction } = useEventTranslation(campaign.event, {
     iconOnly: true,
     buttonClassName: 'size-8 rounded-full p-0 text-muted-foreground hover:text-primary hover:bg-primary/10',
@@ -180,8 +178,14 @@ export function CampaignCard({ campaign, variant = 'compact', className, footerB
   // already there by the time the user sees it.
   const cardRef = useRef<HTMLAnchorElement>(null);
   const inView = useInView(cardRef);
+  // Cards only show the raised total (the progress bar), never the donor
+  // list — so we skip the kind 8333 receipt fetch and the per-receipt
+  // `/tx` verification fan-out. Only the single Esplora `/address` balance
+  // lookup runs, which keeps a ~200-card grid from firing an N-receipt
+  // `/tx` storm per card.
   const { data: stats, isLoading: donationsLoading } = useCampaignDonations(campaign, {
     enabled: inView,
+    receipts: false,
   });
   const { data: btcPrice } = useBtcPrice();
 
@@ -328,11 +332,6 @@ export function CampaignCard({ campaign, variant = 'compact', className, footerB
           <div className="flex items-center justify-between gap-3 border-t border-border/60 pt-3 text-xs text-muted-foreground">
             <div className="flex min-w-0 items-center gap-2">
               <AuthorByline pubkey={campaign.pubkey} insideLink />
-              {!isSilentPayment && stats && stats.donorCount > 0 && (
-                <span className="shrink-0 text-muted-foreground/80">
-                  · {t('common.donors', { count: stats.donorCount })}
-                </span>
-              )}
             </div>
             {(footerBadge || translateAction) && (
               <div className="flex shrink-0 items-center gap-1.5">

src/hooks/useCampaignDonations.ts

@@ -97,12 +97,24 @@ export function useCampaignDonations(
      * option's default was introduced to stop.
      */
     refetchInterval?: number | false;
+    /**
+     * Skip the kind 8333 receipt fetch and the per-receipt `/tx`
+     * verification fan-out — i.e. everything that powers the donor
+     * list, donor count, and per-tx breakdown. Only the single Esplora
+     * `/address` balance lookup that drives the headline `totalSats`
+     * (the progress bar) runs.
+     *
+     * Card grids only render the raised total, never the donor list, so
+     * they pass `receipts: false` to avoid an N-receipt `/tx` storm per
+     * card. The detail page leaves this `true` to populate its donor UI.
+     */
+    receipts?: boolean;
   } = {},
 ): {
   data: CampaignDonationStats;
   isLoading: boolean;
 } {
-  const { enabled = true, refetchInterval = false } = options;
+  const { enabled = true, refetchInterval = false, receipts: fetchReceipts = true } = options;
   const { nostr } = useNostr();
   const { config } = useAppContext();
   const { esploraApis } = config;
@@ -146,7 +158,7 @@ export function useCampaignDonations(
       );
       return events;
     },
-    enabled: enabled && !!aTag && hasOnchain,
+    enabled: enabled && fetchReceipts && !!aTag && hasOnchain,
     staleTime: 15_000,
   });
 
@@ -174,7 +186,7 @@ export function useCampaignDonations(
       queryFn: ({ signal }: { signal: AbortSignal }) =>
         verifyOnchainZap(event, esploraApis, walletValue, signal),
       staleTime: 60_000,
-      enabled: enabled && !!walletValue && hasOnchain,
+      enabled: enabled && fetchReceipts && !!walletValue && hasOnchain,
     })),
   });
 
@@ -205,8 +217,8 @@ export function useCampaignDonations(
     hasOnchain &&
     (!enabled ||
       addressQuery.isLoading ||
-      receiptsQuery.isLoading ||
-      verifications.some((v) => v.isLoading));
+      (fetchReceipts &&
+        (receiptsQuery.isLoading || verifications.some((v) => v.isLoading))));
 
   return {
     data: {