feat: 添加食物分析结果页面的图片预览功能，优化记录栏显示逻辑

components/CalorieRingChart.tsx

@@ -115,9 +115,6 @@ export function CalorieRingChart({
             <ThemedText style={[styles.centerValue, { color: textColor }]}>
               {Math.round(canEat)}千卡
             </ThemedText>
-            <ThemedText style={[styles.centerPercentage, { color: textSecondaryColor }]}>
-              {Math.round(progressPercentage)}%
-            </ThemedText>
           </View>
         </View>
 
@@ -187,7 +184,7 @@ const styles = StyleSheet.create({
     borderRadius: 16,
     padding: 16,
     marginHorizontal: 16,
-    marginBottom: 16,
+    marginBottom: 8,
     shadowColor: '#000000',
     shadowOffset: { width: 0, height: 1 },
     shadowOpacity: 0.04,