feat: 增强食物库功能，支持自定义食物的创建与删除，优化用户体验

components/NutritionRadarCard.tsx

@@ -85,30 +85,6 @@ export function NutritionRadarCard({
   const consumedCalories = nutritionSummary?.totalCalories || 0;
   const remainingCalories = burnedCalories - consumedCalories - calorieDeficit;
 
-  // 餐次数据
-  const meals = [
-    {
-      type: 'breakfast' as const,
-      name: '早餐',
-      emoji: '🥚',
-    },
-    {
-      type: 'lunch' as const,
-      name: '午餐',
-      emoji: '🍔',
-    },
-    {
-      type: 'dinner' as const,
-      name: '晚餐',
-      emoji: '🥣',
-    },
-    {
-      type: 'snack' as const,
-      name: '加餐',
-      emoji: '🍎',
-    },
-  ];
-
   const handleNavigateToRecords = () => {
     router.push(ROUTES.NUTRITION_RECORDS);
   };
@@ -124,7 +100,7 @@ export function NutritionRadarCard({
         <View style={styles.cardRightContainer}>
           <Text style={styles.cardSubtitle}>更新: {dayjs(nutritionSummary?.updatedAt).format('MM-DD HH:mm')}</Text>
           <TouchableOpacity style={styles.addButton} onPress={handleAddFood}>
-            <Ionicons name="add-circle" size={16} color="#FFFFFF" />
+            <Ionicons name="add" size={16} color="#FFFFFF" />
           </TouchableOpacity>
         </View>
       </View>
@@ -142,7 +118,6 @@ export function NutritionRadarCard({
         <View style={styles.statsContainer}>
           {nutritionStats.map((stat, index) => (
             <View key={stat.label} style={styles.statItem}>
-              <View style={[styles.statDot, { backgroundColor: stat.color }]} />
               <Text style={styles.statLabel}>{stat.label}</Text>
               <Text style={styles.statValue}>{stat.value}</Text>
             </View>
@@ -267,7 +242,6 @@ const styles = StyleSheet.create({
   },
   // 卡路里相关样式
   calorieSection: {
-    marginTop: 12,
   },
 
   calorieTitleContainer: {
@@ -341,10 +315,11 @@ const styles = StyleSheet.create({
     fontSize: 24,
   },
   addButton: {
-    width: 16,
-    height: 16,
+    width: 18,
+    height: 18,
     borderRadius: 8,
-    backgroundColor: '#10B981',
+    backgroundColor: '#9AA3AE',
+    marginLeft: 8,
     alignItems: 'center',
     justifyContent: 'center',
     shadowColor: '#000',