feat(mints): surface MintRadar's community ratings, reliability and audit data

The directory we already fetch returns review ratings, reliability, uptime and
liveness-audit stats that the client was throwing away (it only typed ~12 of ~35
fields). Now:

- MintDirectoryEntry types the community fields (rating/weighted rating/count,
  reliabilityScore, uptime 24h+7d, audit volume + recent errors, serverLocation,
  units, mint/melt methods, pubkey, discoveredAt, lastError).
- Row shows the rating (e.g. 4.6 (30)) plus reliability and 24h uptime.
- Detail sheet shows rating, reliability, uptime, location, latency, NUTs,
  units, version, plus a liveness-audit line and an honest note that written
  reviews live on MintRadar (linked), not in the directory API.

Written comments are genuinely not in MintRadar's /api/mints/known (probed a few
plausible review endpoints - all 404), so the next step for in-app comments
would be Nostr-native mint reviews.

src/hooks/useMintDirectory.ts

@@ -31,6 +31,34 @@ export interface MintDirectoryEntry {
   nutCount?: number;
   tosUrl?: string;
   lastOnlineAt?: string;
+
+  // ── Community signal MintRadar also returns (previously unused) ────────────
+  /** Average community rating, 0–5. */
+  reviewAvgRating?: number;
+  /** How many community ratings back the average. */
+  reviewCount?: number;
+  /** Rating after MintRadar's own weighting. */
+  reviewWeightedRating?: number;
+  /** 0–100 composite reliability score. */
+  reliabilityScore?: number;
+  uptimePct24h?: number;
+  uptimePct7d?: number;
+  /** Liveness audit volume — tokens actually minted/melted through it. */
+  auditNMints?: number;
+  auditNMelts?: number;
+  auditNErrors?: number;
+  auditRecentErrors?: number;
+  auditRecentTotal?: number;
+  auditCheckedAt?: string;
+  serverLocation?: string;
+  units?: string[];
+  mintMethods?: Array<{ unit?: string; method?: string; min_amount?: number; max_amount?: number }>;
+  meltMethods?: Array<{ unit?: string; method?: string; min_amount?: number; max_amount?: number }>;
+  /** The mint's own Nostr announcement key, when it publishes one. */
+  pubkey?: string;
+  nostrAnnouncedAt?: string;
+  discoveredAt?: string;
+  lastError?: string | null;
 }
 
 const SITE_ORIGIN = 'https://skate-spots.org';

src/pages/MintsPage.tsx

@@ -12,7 +12,7 @@ import { useCashu } from '@/hooks/wallet/useCashu';
 import { useToast } from '@/hooks/useToast';
 import { isNativePlatform } from '@/lib/platform';
 import { cn } from '@/lib/utils';
-import { Search, Coins, ExternalLink, Plus, Loader2, Check, ShieldAlert, Activity, ChevronRight, Copy, Info } from 'lucide-react';
+import { Search, Coins, ExternalLink, Plus, Loader2, Check, ShieldAlert, Activity, ChevronRight, Copy, Info, Star } from 'lucide-react';
 
 function hostOf(url: string): string {
   try {
@@ -112,6 +112,27 @@ function MintRow({
                 </a>
               )}
             </div>
+
+            {/* Community signal — ratings + reliability from MintRadar. */}
+            {((typeof mint.reviewAvgRating === 'number' && (mint.reviewCount ?? 0) > 0) ||
+              typeof mint.reliabilityScore === 'number' ||
+              typeof mint.uptimePct24h === 'number') && (
+              <div className="mt-1.5 flex flex-wrap items-center gap-x-2.5 gap-y-0.5 text-[11px]">
+                {typeof mint.reviewAvgRating === 'number' && (mint.reviewCount ?? 0) > 0 && (
+                  <span className="inline-flex items-center gap-1 font-bold text-amber-400">
+                    <Star className="h-3 w-3 fill-current" />
+                    {mint.reviewAvgRating.toFixed(1)}
+                    <span className="font-normal text-gray-500">({mint.reviewCount})</span>
+                  </span>
+                )}
+                {typeof mint.reliabilityScore === 'number' && (
+                  <span className="text-gray-400">reliability {mint.reliabilityScore}/100</span>
+                )}
+                {typeof mint.uptimePct24h === 'number' && (
+                  <span className="text-gray-400">{Math.round(mint.uptimePct24h)}% up · 24h</span>
+                )}
+              </div>
+            )}
           </div>
 
           <div className="shrink-0 flex items-center gap-1.5">
@@ -358,6 +379,28 @@ export default function MintsPage() {
 
                 <div className="mt-4 grid grid-cols-2 gap-2">
                   {[
+                    {
+                      label: 'Community rating',
+                      value:
+                        typeof selected.reviewAvgRating === 'number' && (selected.reviewCount ?? 0) > 0
+                          ? `${selected.reviewAvgRating.toFixed(1)} / 5 · ${selected.reviewCount}`
+                          : '—',
+                    },
+                    {
+                      label: 'Reliability',
+                      value:
+                        typeof selected.reliabilityScore === 'number'
+                          ? `${selected.reliabilityScore} / 100`
+                          : '—',
+                    },
+                    {
+                      label: 'Uptime 24h / 7d',
+                      value:
+                        typeof selected.uptimePct24h === 'number' && typeof selected.uptimePct7d === 'number'
+                          ? `${Math.round(selected.uptimePct24h)}% / ${Math.round(selected.uptimePct7d)}%`
+                          : '—',
+                    },
+                    { label: 'Location', value: selected.serverLocation ?? '—' },
                     {
                       label: 'Latency',
                       value:
@@ -369,8 +412,11 @@ export default function MintsPage() {
                       label: 'NUTs supported',
                       value: typeof selected.nutCount === 'number' ? String(selected.nutCount) : '—',
                     },
+                    {
+                      label: 'Units',
+                      value: selected.units?.length ? selected.units.join(', ') : '—',
+                    },
                     { label: 'Version', value: selected.version ?? '—' },
-                    { label: 'Last online', value: selected.lastOnlineAt ?? '—' },
                   ].map((f) => (
                     <div
                       key={f.label}
@@ -384,6 +430,40 @@ export default function MintsPage() {
                   ))}
                 </div>
 
+                <div className="mt-3 space-y-1.5 text-[11px] leading-relaxed text-gray-500">
+                  <p className="flex items-start gap-2">
+                    <Star className="mt-0.5 h-3.5 w-3.5 shrink-0 text-amber-400" />
+                    <span>
+                      {typeof selected.reviewAvgRating === 'number' && (selected.reviewCount ?? 0) > 0
+                        ? `Rated ${selected.reviewAvgRating.toFixed(1)}/5 by ${selected.reviewCount} people on MintRadar.`
+                        : 'No community rating yet on MintRadar.'}{' '}
+                      Written reviews aren&apos;t part of the directory —{' '}
+                      <a
+                        href="https://mintradar.org/"
+                        target="_blank"
+                        rel="noopener noreferrer"
+                        className="text-gray-300 underline underline-offset-2 hover:text-white"
+                      >
+                        open MintRadar
+                      </a>{' '}
+                      to read or leave one.
+                    </span>
+                  </p>
+                  {typeof selected.auditNMints === 'number' && (
+                    <p className="flex items-start gap-2">
+                      <Activity className="mt-0.5 h-3.5 w-3.5 shrink-0 text-[#ccff00]" />
+                      <span>
+                        Liveness audit: {selected.auditNMints.toLocaleString()} mints and{' '}
+                        {(selected.auditNMelts ?? 0).toLocaleString()} melts tested
+                        {selected.auditRecentTotal
+                          ? ` · ${selected.auditRecentErrors ?? 0}/${selected.auditRecentTotal} recent errors`
+                          : ''}
+                        .
+                      </span>
+                    </p>
+                  )}
+                </div>
+
                 <div className="mt-4 flex flex-wrap gap-2">
                   {addedUrls.has(selected.url.toLowerCase()) ? (
                     <Badge className="gap-1 border border-[#ccff00]/30 bg-[#ccff00]/15 text-[#ccff00]">