feat: add monthly donation progress to welcome page

Add a compact donation leaderboard that displays:
- Progress bar showing current month's donations toward 210k sats goal
- Total amount raised and percentage funded
- Top 3 supporters with their contribution amounts

The component queries kind:9735 zap receipts from the current month,
aggregates by sender, and displays the results in a clean card format
on the welcome page.

src/components/DonationProgress.tsx

@@ -0,0 +1,148 @@
+import { useMemo } from "react";
+import { useTimeline } from "@/hooks/useTimeline";
+import { getZapAmount, getZapSender } from "applesauce-common/helpers/zap";
+import { UserName } from "./nostr/UserName";
+import { Zap } from "lucide-react";
+import { AGGREGATOR_RELAYS } from "@/services/loaders";
+
+const GRIMOIRE_PUBKEY =
+  "c8fb0d3aa788b9ace4f6cb92dd97d3f292db25b5c9f92462ef6c64926129fbaf";
+const MONTHLY_GOAL = 210_000; // 210k sats
+
+/**
+ * DonationProgress - Displays monthly donation progress
+ * Shows progress bar, total raised, and top donors
+ */
+export function DonationProgress() {
+  // Get start of current month timestamp
+  const monthStart = useMemo(() => {
+    const now = new Date();
+    return Math.floor(
+      new Date(now.getFullYear(), now.getMonth(), 1).getTime() / 1000,
+    );
+  }, []);
+
+  // Query zaps to Grimoire from this month
+  const { events: zaps, loading } = useTimeline(
+    "grimoire-donations",
+    {
+      kinds: [9735],
+      "#p": [GRIMOIRE_PUBKEY],
+      since: monthStart,
+      limit: 500,
+    },
+    AGGREGATOR_RELAYS,
+    { limit: 500 },
+  );
+
+  // Aggregate donations by sender
+  const { totalRaised, topDonors } = useMemo(() => {
+    const byDonor = new Map<string, number>();
+
+    for (const zap of zaps) {
+      const sender = getZapSender(zap);
+      const amount = getZapAmount(zap);
+
+      if (sender && amount) {
+        const currentTotal = byDonor.get(sender) || 0;
+        byDonor.set(sender, currentTotal + amount);
+      }
+    }
+
+    // Convert msats to sats and calculate total
+    const totalMsats = Array.from(byDonor.values()).reduce(
+      (sum, amt) => sum + amt,
+      0,
+    );
+    const totalSats = Math.floor(totalMsats / 1000);
+
+    // Get top 3 donors
+    const sortedDonors = Array.from(byDonor.entries())
+      .map(([pubkey, msats]) => ({
+        pubkey,
+        sats: Math.floor(msats / 1000),
+      }))
+      .sort((a, b) => b.sats - a.sats)
+      .slice(0, 3);
+
+    return {
+      totalRaised: totalSats,
+      topDonors: sortedDonors,
+    };
+  }, [zaps]);
+
+  // Calculate progress percentage
+  const progress = Math.min(100, (totalRaised / MONTHLY_GOAL) * 100);
+
+  if (loading && zaps.length === 0) {
+    return null; // Don't show until data loads
+  }
+
+  return (
+    <div className="w-full max-w-md mx-auto mb-8 border border-border rounded-lg p-4 bg-card/50">
+      {/* Header */}
+      <div className="flex items-center justify-between mb-3">
+        <div className="flex items-center gap-2">
+          <Zap className="size-4 fill-zap text-zap" />
+          <span className="text-sm font-mono text-foreground">
+            Support Grimoire
+          </span>
+        </div>
+        <span className="text-xs text-muted-foreground font-mono">
+          This Month
+        </span>
+      </div>
+
+      {/* Progress Bar */}
+      <div className="mb-3">
+        <div className="flex justify-between text-xs font-mono mb-1">
+          <span className="text-zap font-medium">
+            {totalRaised.toLocaleString()} sats
+          </span>
+          <span className="text-muted-foreground">
+            {MONTHLY_GOAL.toLocaleString()} goal
+          </span>
+        </div>
+        <div className="h-2 bg-muted rounded-full overflow-hidden">
+          <div
+            className="h-full bg-gradient-to-r from-zap to-yellow-400 transition-all duration-500 ease-out"
+            style={{ width: `${progress}%` }}
+          />
+        </div>
+        <div className="text-xs text-muted-foreground font-mono mt-1 text-center">
+          {progress.toFixed(1)}% funded
+        </div>
+      </div>
+
+      {/* Top Donors */}
+      {topDonors.length > 0 && (
+        <div className="border-t border-border pt-3">
+          <div className="text-xs text-muted-foreground font-mono mb-2">
+            Top Supporters
+          </div>
+          <div className="flex flex-col gap-1">
+            {topDonors.map((donor, idx) => (
+              <div
+                key={donor.pubkey}
+                className="flex items-center justify-between text-sm"
+              >
+                <div className="flex items-center gap-2">
+                  <span className="text-muted-foreground font-mono text-xs w-4">
+                    {idx + 1}.
+                  </span>
+                  <UserName
+                    pubkey={donor.pubkey}
+                    className="text-foreground truncate max-w-[120px]"
+                  />
+                </div>
+                <span className="text-zap font-mono text-xs font-medium">
+                  {donor.sats.toLocaleString()}⚡
+                </span>
+              </div>
+            ))}
+          </div>
+        </div>
+      )}
+    </div>
+  );
+}

src/components/GrimoireWelcome.tsx

@@ -1,6 +1,7 @@
 import { Terminal } from "lucide-react";
 import { Button } from "./ui/button";
 import { Kbd, KbdGroup } from "./ui/kbd";
+import { DonationProgress } from "./DonationProgress";
 
 interface GrimoireWelcomeProps {
   onLaunchCommand: () => void;
@@ -62,6 +63,9 @@ export function GrimoireWelcome({
           </p>
         </div>
 
+        {/* Donation Progress */}
+        <DonationProgress />
+
         {/* Launch button */}
         <div className="flex flex-col items-center gap-3">
           <p className="text-muted-foreground text-sm font-mono mb-2">