fix: ad setup

Author: mingrammer

src/components/ads/AdBanner.tsx

@@ -66,9 +66,16 @@ const AdBanner: React.FC<AdBannerProps> = ({
           }
         });
 
-        if (loaded && window.adsbygoogle) {
+        if (loaded && window.adsbygoogle && adRef.current) {
           // 광고 초기화 시도
           try {
+            // 이미 초기화된 광고인지 확인
+            const existingAd = adRef.current.querySelector('.adsbygoogle');
+            if (existingAd && existingAd.getAttribute('data-adsbygoogle-status')) {
+              safeLog.info('Ad already initialized for slot:', slot);
+              return;
+            }
+
             (window.adsbygoogle = window.adsbygoogle || []).push({});
             safeLog.info('AdSense ad initialized for slot:', slot);
           } catch (error) {
@@ -111,6 +118,19 @@ const AdBanner: React.FC<AdBannerProps> = ({
     );
   }
 
+  // 유효한 슬롯 ID인지 확인 (AdSense에서 생성한 슬롯 ID는 숫자로만 구성됨)
+  const isValidSlot = /^\d+$/.test(slot);
+  if (!isValidSlot) {
+    safeLog.warn(`Invalid AdSense slot format: ${slot}. Slot should be numeric.`);
+    return (
+      <div className={`bg-yellow-50 border-2 border-dashed border-yellow-300 rounded-lg p-4 text-center ${className}`} style={style}>
+        <p className="text-yellow-600 text-sm">⚠️ Invalid Ad Slot</p>
+        <p className="text-xs text-yellow-500 mt-1">Slot: {slot}</p>
+        <p className="text-xs text-yellow-400 mt-2">AdSense 슬롯 ID는 숫자여야 합니다</p>
+      </div>
+    );
+  }
+
   return (
     <div className={`ad-container ${className}`} style={style}>
       <ins

src/pages/Index.tsx

@@ -197,8 +197,8 @@ const Index = () => {
             {/* 사이드바 광고 */}
             <AnalyticsErrorBoundary>
               <AdBanner 
-                slot="sidebar-ad"
-                format="rectangle"
+                slot="1234567890"
+                format="auto"
                 className="w-full"
                 style={{ minHeight: '250px' }}
               />
@@ -207,8 +207,8 @@ const Index = () => {
             {/* 두 번째 광고 */}
             <AnalyticsErrorBoundary>
               <AdBanner 
-                slot="sidebar-ad-2"
-                format="rectangle"
+                slot="0987654321"
+                format="auto"
                 className="w-full"
                 style={{ minHeight: '250px' }}
               />

src/pages/ToolPage.tsx

@@ -148,8 +148,8 @@ const ToolPage = () => {
               <div className="mt-8">
                 <AnalyticsErrorBoundary>
                   <AdBanner 
-                    slot="tool-bottom-banner" 
-                    format="horizontal"
+                    slot="1122334455" 
+                    format="auto"
                     className="max-w-2xl mx-auto"
                     style={{ minHeight: '250px' }}
                   />