fix: live-refresh stats timestamp and oracle filter result count

src/app/oracle/page.tsx

@@ -165,7 +165,7 @@ export default function OraclePage() {
       {readings.length > 0 && (
         <>
           {/* Filter pills */}
-          <div className="mt-6 flex flex-wrap gap-2">
+          <div className="mt-6 flex flex-wrap items-center gap-2">
             {DATA_TYPES.map((dt) => (
               <button
                 key={dt}
@@ -179,6 +179,11 @@ export default function OraclePage() {
                 {dt === 'all' ? 'All types' : dt.charAt(0).toUpperCase() + dt.slice(1)}
               </button>
             ))}
+            {dataTypeFilter !== 'all' && (
+              <span className="text-xs text-gray-400">
+                {filteredReadings.length} result{filteredReadings.length !== 1 ? 's' : ''}
+              </span>
+            )}
           </div>
 
           <div className={`mt-4 overflow-x-auto rounded-2xl border border-white/10 bg-white/[0.02] transition-opacity ${loading ? 'opacity-50' : ''}`}>

src/app/page.tsx

@@ -82,6 +82,13 @@ export default function HomePage() {
   const [totalCoverage, setTotalCoverage] = useState<string | null>(null);
   const [totalPayouts,  setTotalPayouts]  = useState<string | null>(null);
   const [statsLastUpdated, setStatsLastUpdated] = useState<Date | null>(null);
+  const [, setTick] = useState(0);
+
+  // Refresh the "Updated X ago" text every 60s
+  useEffect(() => {
+    const id = setInterval(() => setTick((t) => t + 1), 60_000);
+    return () => clearInterval(id);
+  }, []);
 
   useEffect(() => {
     let cancelled = false;