feat: 更新心情记录功能及相关组件

- 在心情日历中新增心情圆环展示，显示心情强度
- 修改心情记录编辑页面，支持使用图标替代表情
- 优化心情类型配置，使用图片资源替代原有表情
- 新增多种心情图标，丰富用户选择
- 更新相关样式，提升用户体验和界面美观性
- 更新文档，详细描述新功能和使用方法

app/(tabs)/coach.tsx

@@ -25,14 +25,13 @@ import { useSafeAreaInsets } from 'react-native-safe-area-context';
 
 import { Colors } from '@/constants/Colors';
 import { getTabBarBottomPadding } from '@/constants/TabBar';
-import { useAppDispatch, useAppSelector } from '@/hooks/redux';
+import { useAppSelector } from '@/hooks/redux';
 import { useAuthGuard } from '@/hooks/useAuthGuard';
 import { useColorScheme } from '@/hooks/useColorScheme';
 import { useCosUpload } from '@/hooks/useCosUpload';
 import { deleteConversation, getConversationDetail, listConversations, type AiConversationListItem } from '@/services/aiCoach';
 import { loadAiCoachSessionCache, saveAiCoachSessionCache } from '@/services/aiCoachSession';
 import { api, getAuthToken, postTextStream } from '@/services/api';
-import { updateProfile } from '@/store/userSlice';
 import dayjs from 'dayjs';
 import { LinearGradient } from 'expo-linear-gradient';
 import { ActionSheet } from '../../components/ui/ActionSheet';
@@ -284,9 +283,9 @@ export default function CoachScreen() {
     { key: 'weight', label: '#记体重', action: () => insertWeightInputCard() },
     { key: 'diet', label: '#记饮食', action: () => insertDietInputCard() },
     { key: 'dietPlan', label: '#饮食方案', action: () => insertDietPlanCard() },
-    { 
-      key: 'mood', 
-      label: '#记心情', 
+    {
+      key: 'mood',
+      label: '#记心情',
       action: () => {
         if (Platform.OS === 'ios') {
           Haptics.impactAsync(Haptics.ImpactFeedbackStyle.Light);
@@ -1345,7 +1344,7 @@ export default function CoachScreen() {
           {/* 标题部分 */}
           <View style={styles.dietPlanHeader}>
             <View style={styles.dietPlanTitleContainer}>
-                              <Ionicons name="restaurant-outline" size={20} color={theme.success} />
+              <Ionicons name="restaurant-outline" size={20} color={theme.success} />
               <Text style={styles.dietPlanTitle}>我的饮食方案</Text>
             </View>
             <Text style={styles.dietPlanSubtitle}>MY DIET PLAN</Text>
@@ -1774,7 +1773,7 @@ export default function CoachScreen() {
       });
 
       // 发送饮食记录消息
-      const dietMsg = `记录了今日饮食：${trimmedText}`;
+      const dietMsg = `#记饮食：${trimmedText}`;
       await sendStream(dietMsg);
     } catch (e: any) {
       console.error('[DIET] 提交饮食记录失败:', e);
@@ -1865,13 +1864,6 @@ export default function CoachScreen() {
           <TouchableOpacity
             style={styles.usageCountContainer}
             onPress={() => {
-              // 临时测试：切换VIP状态
-              const dispatch = useAppDispatch();
-              dispatch(updateProfile({
-                isVip: !userProfile?.isVip,
-                freeUsageCount: userProfile?.isVip ? 3 : 5,
-                maxUsageCount: userProfile?.isVip ? 5 : 10
-              }));
             }}
           >
             <Image
@@ -1960,15 +1952,15 @@ export default function CoachScreen() {
           contentContainerStyle={{ paddingHorizontal: 6, gap: 8 }}
         >
           {chips.map((c) => (
-            <TouchableOpacity 
-              key={c.key} 
+            <TouchableOpacity
+              key={c.key}
               style={[
-                styles.chip, 
-                { 
-                  borderColor: c.key === 'mood' ? `${theme.success}40` : `${theme.primary}40`, 
-                  backgroundColor: c.key === 'mood' ? `${theme.success}15` : `${theme.primary}15` 
+                styles.chip,
+                {
+                  borderColor: c.key === 'mood' ? `${theme.success}40` : `${theme.primary}40`,
+                  backgroundColor: c.key === 'mood' ? `${theme.success}15` : `${theme.primary}15`
                 }
-              ]} 
+              ]}
               onPress={c.action}
             >
               <Text style={[styles.chipText, { color: c.key === 'mood' ? theme.success : theme.text }]}>{c.label}</Text>