3D 뷰어 조명 설정 개선 (색상 왜곡 해결)

frontend/components/admin/dashboard/widgets/yard-3d/Yard3DCanvas.tsx

@@ -1104,10 +1104,12 @@ function Scene({
         orbitControlsRef={orbitControlsRef}
       />
 
-      {/* 조명 */}
-      <ambientLight intensity={0.5} />
-      <directionalLight position={[10, 10, 5]} intensity={1} />
-      <directionalLight position={[-10, -10, -5]} intensity={0.3} />
+      {/* 조명 - 전체적으로 밝게 조정 */}
+      <ambientLight intensity={0.9} />
+      <directionalLight position={[10, 20, 10]} intensity={1.2} />
+      <directionalLight position={[-10, 20, -10]} intensity={0.8} />
+      <directionalLight position={[0, 20, 0]} intensity={0.5} />
+      <hemisphereLight args={["#ffffff", "#bbbbbb", 0.8]} />
 
       {/* 배경색 */}
       <color attach="background" args={["#f3f4f6"]} />