fix: remove scale/shadow whileDrag effect that stuck after release

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/client/components/CandidateListItem.tsx

@@ -220,17 +220,12 @@ export function CandidateListItem({
 					isDragging.current = true;
 				}}
 				onDragEnd={() => {
-					// Delay clearing so onClick can check it
 					setTimeout(() => {
 						isDragging.current = false;
 					}, 0);
 					onDragEnd?.();
 				}}
-				whileDrag={{
-					scale: 1.02,
-					boxShadow: "0 4px 12px rgba(0,0,0,0.1)",
-					cursor: "grabbing",
-				}}
+				whileDrag={{ cursor: "grabbing" }}
 				style={{ marginBottom: 8, cursor: "grab" }}
 				className={sharedClassName}
 			>