feat: add zap button to goal renderers

Show a 'Zap this Goal' button in both feed and detail views
when the goal is still open (not past its closed_at deadline).

src/components/nostr/kinds/GoalDetailRenderer.tsx

@@ -1,5 +1,6 @@
 import { useMemo } from "react";
 import { NostrEvent } from "@/types/nostr";
+import { Zap } from "lucide-react";
 import { useTimeline } from "@/hooks/useTimeline";
 import {
   getGoalAmount,
@@ -14,6 +15,7 @@ import { getZapAmount, getZapSender } from "applesauce-common/helpers/zap";
 import { formatTimestamp } from "@/hooks/useLocale";
 import { useGrimoire } from "@/core/state";
 import { Progress } from "@/components/ui/progress";
+import { Button } from "@/components/ui/button";
 import { UserName } from "../UserName";
 import { Skeleton } from "@/components/ui/skeleton";
 import { AGGREGATOR_RELAYS } from "@/services/loaders";
@@ -29,7 +31,7 @@ interface Contributor {
  * Shows full goal info with sorted contributor breakdown
  */
 export function GoalDetailRenderer({ event }: { event: NostrEvent }) {
-  const { locale } = useGrimoire();
+  const { locale, addWindow } = useGrimoire();
 
   // Get goal metadata
   const targetAmount = getGoalAmount(event);
@@ -109,6 +111,13 @@ export function GoalDetailRenderer({ event }: { event: NostrEvent }) {
     ? formatTimestamp(closedAt, "absolute", locale.locale)
     : null;
 
+  const handleZap = () => {
+    addWindow("zap", {
+      recipientPubkey: event.pubkey,
+      eventPointer: { id: event.id },
+    });
+  };
+
   return (
     <div className="flex flex-col gap-6 p-6 max-w-2xl mx-auto">
       {/* Header */}
@@ -153,6 +162,14 @@ export function GoalDetailRenderer({ event }: { event: NostrEvent }) {
         </div>
       )}
 
+      {/* Zap Button */}
+      {!closed && (
+        <Button variant="outline" onClick={handleZap} className="w-fit">
+          <Zap className="size-4 text-zap" />
+          Zap this Goal
+        </Button>
+      )}
+
       {/* Beneficiaries */}
       {beneficiaries.length > 0 && (
         <div className="flex flex-col gap-2">

src/components/nostr/kinds/GoalRenderer.tsx

@@ -4,6 +4,7 @@ import {
   BaseEventContainer,
   ClickableEventTitle,
 } from "./BaseEventRenderer";
+import { Zap } from "lucide-react";
 import { useTimeline } from "@/hooks/useTimeline";
 import {
   getGoalAmount,
@@ -17,6 +18,7 @@ import { getZapAmount } from "applesauce-common/helpers/zap";
 import { formatTimestamp } from "@/hooks/useLocale";
 import { useGrimoire } from "@/core/state";
 import { Progress } from "@/components/ui/progress";
+import { Button } from "@/components/ui/button";
 import { AGGREGATOR_RELAYS } from "@/services/loaders";
 
 /**
@@ -24,7 +26,7 @@ import { AGGREGATOR_RELAYS } from "@/services/loaders";
  * Shows goal title, description, and funding progress
  */
 export function GoalRenderer({ event }: BaseEventProps) {
-  const { locale } = useGrimoire();
+  const { locale, addWindow } = useGrimoire();
 
   // Get goal metadata
   const targetAmount = getGoalAmount(event);
@@ -77,6 +79,13 @@ export function GoalRenderer({ event }: BaseEventProps) {
     ? formatTimestamp(closedAt, "absolute", locale.locale)
     : null;
 
+  const handleZap = () => {
+    addWindow("zap", {
+      recipientPubkey: event.pubkey,
+      eventPointer: { id: event.id },
+    });
+  };
+
   return (
     <BaseEventContainer event={event}>
       <div className="flex flex-col gap-3">
@@ -130,6 +139,14 @@ export function GoalRenderer({ event }: BaseEventProps) {
             )}
           </div>
         )}
+
+        {/* Zap Button */}
+        {!closed && (
+          <Button variant="outline" size="sm" onClick={handleZap}>
+            <Zap className="size-4 text-zap" />
+            Zap this Goal
+          </Button>
+        )}
       </div>
     </BaseEventContainer>
   );