feat(frontend): add curated reserves for 94 stablecoins + coin notice system

Research and populate reserve composition data for all remaining 94
tracked stablecoins (33 high, 46 medium, 15 low confidence). Total
curated reserves now cover 129 of 143 tracked coins.

Add CoinNotice component for important alerts on detail pages, rendered
between AI summary and report card. Three notices added:
- AEUR: winding down (FlowBank bankruptcy)
- sUSD: prolonged depeg (~$0.83-0.85)
- USDU Finance: undercollateralized by design (~43% CR)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: TokenBrice

src/app/stablecoin/[id]/client.tsx

@@ -22,6 +22,7 @@ import { KeyInfoCard } from "@/components/key-info-card";
 import { ContractAddresses } from "@/components/contract-addresses";
 import { AiSummary } from "@/components/ai-summary";
 import { ReportCardDetail } from "@/components/report-card";
+import { CoinNotices } from "@/components/coin-notice";
 import { DetailSectionNav } from "@/components/detail-section-nav";
 import { PegGauge } from "@/components/peg-gauge";
 import { ReserveTreemap } from "@/components/reserve-treemap";
@@ -376,6 +377,10 @@ export default function StablecoinDetailClient({ id, summary, coin, logoSrc }: S
         {summary && <AiSummary {...summary} />}
       </section>
 
+      {coin.notices && coin.notices.length > 0 && (
+        <CoinNotices notices={coin.notices} />
+      )}
+
       <section id="report-card">
         {reportCard && <ReportCardDetail card={reportCard} />}
       </section>

src/components/coin-notice.tsx

@@ -0,0 +1,69 @@
+import React from "react";
+import type { CoinNotice as CoinNoticeType } from "@/lib/types";
+
+const STYLES: Record<CoinNoticeType["type"], { border: string; bg: string; icon: string; title: string }> = {
+  danger: {
+    border: "border-red-500/40",
+    bg: "bg-red-500/5",
+    icon: "text-red-500",
+    title: "text-red-600 dark:text-red-400",
+  },
+  warning: {
+    border: "border-amber-500/40",
+    bg: "bg-amber-500/5",
+    icon: "text-amber-500",
+    title: "text-amber-600 dark:text-amber-400",
+  },
+  info: {
+    border: "border-blue-500/40",
+    bg: "bg-blue-500/5",
+    icon: "text-blue-500",
+    title: "text-blue-600 dark:text-blue-400",
+  },
+};
+
+const ICONS: Record<CoinNoticeType["type"], React.ReactNode> = {
+  danger: (
+    <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 20 20" fill="currentColor" className="size-5 shrink-0">
+      <path fillRule="evenodd" d="M18 10a8 8 0 1 1-16 0 8 8 0 0 1 16 0Zm-8-5a.75.75 0 0 1 .75.75v4.5a.75.75 0 0 1-1.5 0v-4.5A.75.75 0 0 1 10 5Zm0 10a1 1 0 1 0 0-2 1 1 0 0 0 0 2Z" clipRule="evenodd" />
+    </svg>
+  ),
+  warning: (
+    <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 20 20" fill="currentColor" className="size-5 shrink-0">
+      <path fillRule="evenodd" d="M8.485 2.495c.673-1.167 2.357-1.167 3.03 0l6.28 10.875c.673 1.167-.17 2.625-1.516 2.625H3.72c-1.347 0-2.189-1.458-1.515-2.625L8.485 2.495ZM10 6a.75.75 0 0 1 .75.75v3.5a.75.75 0 0 1-1.5 0v-3.5A.75.75 0 0 1 10 6Zm0 9a1 1 0 1 0 0-2 1 1 0 0 0 0 2Z" clipRule="evenodd" />
+    </svg>
+  ),
+  info: (
+    <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 20 20" fill="currentColor" className="size-5 shrink-0">
+      <path fillRule="evenodd" d="M18 10a8 8 0 1 1-16 0 8 8 0 0 1 16 0Zm-7-4a1 1 0 1 1-2 0 1 1 0 0 1 2 0ZM9 9a.75.75 0 0 0 0 1.5h.253a.25.25 0 0 1 .244.304l-.459 2.066A1.75 1.75 0 0 0 10.747 15H11a.75.75 0 0 0 0-1.5h-.253a.25.25 0 0 1-.244-.304l.459-2.066A1.75 1.75 0 0 0 9.253 9H9Z" clipRule="evenodd" />
+    </svg>
+  ),
+};
+
+interface CoinNoticesProps {
+  notices: CoinNoticeType[];
+}
+
+export function CoinNotices({ notices }: CoinNoticesProps) {
+  if (notices.length === 0) return null;
+
+  return (
+    <div className="space-y-3">
+      {notices.map((notice, i) => {
+        const s = STYLES[notice.type];
+        return (
+          <div
+            key={i}
+            className={`flex items-start gap-3 rounded-lg border-l-4 ${s.border} ${s.bg} px-4 py-3`}
+          >
+            <span className={s.icon}>{ICONS[notice.type]}</span>
+            <div className="min-w-0">
+              <p className={`text-sm font-semibold ${s.title}`}>{notice.title}</p>
+              <p className="mt-0.5 text-sm text-muted-foreground">{notice.message}</p>
+            </div>
+          </div>
+        );
+      })}
+    </div>
+  );
+}