feat(medications): 添加AI智能识别药品功能和有效期管理

- 新增AI药品识别流程，支持多角度拍摄和实时进度显示
- 添加药品有效期字段，支持在添加和编辑药品时设置有效期
- 新增MedicationAddOptionsSheet选择录入方式（AI识别/手动录入）
- 新增ai-camera和ai-progress两个独立页面处理AI识别流程
- 新增ExpiryDatePickerModal和MedicationPhotoGuideModal组件
- 移除本地通知系统，迁移到服务端推送通知
- 添加medicationNotificationCleanup服务清理旧的本地通知
- 更新药品详情页支持AI草稿模式和有效期显示
- 优化药品表单，支持有效期选择和AI识别结果确认
- 更新i18n资源，添加有效期相关翻译

BREAKING CHANGE: 药品通知系统从本地通知迁移到服务端推送，旧版本的本地通知将被清理

app/(tabs)/medications.tsx

@@ -1,14 +1,17 @@
 import CelebrationAnimation, { CelebrationAnimationRef } from '@/components/CelebrationAnimation';
 import { DateSelector } from '@/components/DateSelector';
+import { MedicationAddOptionsSheet } from '@/components/medication/MedicationAddOptionsSheet';
 import { MedicationCard } from '@/components/medication/MedicationCard';
 import { TakenMedicationsStack } from '@/components/medication/TakenMedicationsStack';
 import { ThemedText } from '@/components/ThemedText';
 import { IconSymbol } from '@/components/ui/IconSymbol';
 import { MedicalDisclaimerSheet } from '@/components/ui/MedicalDisclaimerSheet';
 import { Colors } from '@/constants/Colors';
+import { useMembershipModal } from '@/contexts/MembershipModalContext';
 import { useAppDispatch, useAppSelector } from '@/hooks/redux';
+import { useAuthGuard } from '@/hooks/useAuthGuard';
 import { useColorScheme } from '@/hooks/useColorScheme';
-import { medicationNotificationService } from '@/services/medicationNotifications';
+import { useVipService } from '@/hooks/useVipService';
 import { fetchMedicationRecords, fetchMedications, selectMedicationDisplayItemsByDate } from '@/store/medicationsSlice';
 import { DEFAULT_MEMBER_NAME } from '@/store/userSlice';
 import { getItemSync, setItemSync } from '@/utils/kvStore';
@@ -46,6 +49,9 @@ export default function MedicationsScreen() {
   const theme = (useColorScheme() ?? 'light') as 'light' | 'dark';
   const colors: ThemeColors = Colors[theme];
   const userProfile = useAppSelector((state) => state.user.profile);
+  const { ensureLoggedIn } = useAuthGuard();
+  const { checkServiceAccess } = useVipService();
+  const { openMembershipModal } = useMembershipModal();
   const [selectedDate, setSelectedDate] = useState<Dayjs>(dayjs());
   const [selectedDateIndex, setSelectedDateIndex] = useState<number>(selectedDate.date() - 1);
   const [activeFilter, setActiveFilter] = useState<MedicationFilter>('all');
@@ -53,34 +59,59 @@ export default function MedicationsScreen() {
   const celebrationTimerRef = useRef<ReturnType<typeof setTimeout> | null>(null);
   const [isCelebrationVisible, setIsCelebrationVisible] = useState(false);
   const [disclaimerVisible, setDisclaimerVisible] = useState(false);
+  const [addSheetVisible, setAddSheetVisible] = useState(false);
+  const [pendingAction, setPendingAction] = useState<'manual' | null>(null);
 
   // 从 Redux 获取数据
   const selectedKey = selectedDate.format('YYYY-MM-DD');
   const medicationsForDay = useAppSelector((state) => selectMedicationDisplayItemsByDate(selectedKey)(state));
 
-  const handleOpenAddMedication = useCallback(() => {
-    // 检查是否已经读过免责声明
+  const handleOpenAddSheet = useCallback(() => {
+    setAddSheetVisible(true);
+  }, []);
+
+  const handleManualAdd = useCallback(() => {
     const hasRead = getItemSync(MEDICAL_DISCLAIMER_READ_KEY);
-    
+    setPendingAction('manual');
+
     if (hasRead === 'true') {
-      // 已读过，直接跳转
+      setAddSheetVisible(false);
+      setPendingAction(null);
       router.push('/medications/add-medication');
     } else {
-      // 未读过，显示医疗免责声明弹窗
+      setAddSheetVisible(false);
       setDisclaimerVisible(true);
     }
   }, []);
 
+  const handleAiRecognize = useCallback(async () => {
+    setAddSheetVisible(false);
+    const isLoggedIn = await ensureLoggedIn();
+    if (!isLoggedIn) return;
+
+    const access = checkServiceAccess();
+    if (!access.canUseService) {
+      openMembershipModal();
+      return;
+    }
+
+    router.push('/medications/ai-camera');
+  }, [checkServiceAccess, ensureLoggedIn, openMembershipModal, router]);
+
   const handleDisclaimerConfirm = useCallback(() => {
     // 用户同意免责声明后，记录已读状态，关闭弹窗并跳转到添加页面
     setItemSync(MEDICAL_DISCLAIMER_READ_KEY, 'true');
     setDisclaimerVisible(false);
-    router.push('/medications/add-medication');
-  }, []);
+    if (pendingAction === 'manual') {
+      setPendingAction(null);
+      router.push('/medications/add-medication');
+    }
+  }, [pendingAction]);
 
   const handleDisclaimerClose = useCallback(() => {
     // 用户不接受免责声明，只关闭弹窗，不跳转，不记录已读状态
     setDisclaimerVisible(false);
+    setPendingAction(null);
   }, []);
 
   const handleOpenMedicationManagement = useCallback(() => {
@@ -133,11 +164,8 @@ export default function MedicationsScreen() {
           // 只获取一次药物数据，然后复用结果
           const medications = await dispatch(fetchMedications({ isActive: true })).unwrap();
           
-          // 并行执行获取药物记录和安排通知
-          const [recordsAction] = await Promise.all([
-            dispatch(fetchMedicationRecords({ date: selectedKey })),
-            medicationNotificationService.rescheduleAllMedicationNotifications(medications),
-          ]);
+          // 获取药物记录
+          const recordsAction = await dispatch(fetchMedicationRecords({ date: selectedKey }));
           
           // 同步数据到小组件（仅同步今天的）
           const today = dayjs().format('YYYY-MM-DD');
@@ -274,7 +302,7 @@ export default function MedicationsScreen() {
 
             <TouchableOpacity
               activeOpacity={0.7}
-              onPress={handleOpenAddMedication}
+              onPress={handleOpenAddSheet}
             >
               {isLiquidGlassAvailable() ? (
                 <GlassView
@@ -391,6 +419,13 @@ export default function MedicationsScreen() {
         )}
       </ScrollView>
 
+      <MedicationAddOptionsSheet
+        visible={addSheetVisible}
+        onClose={() => setAddSheetVisible(false)}
+        onManualAdd={handleManualAdd}
+        onAiRecognize={handleAiRecognize}
+      />
+
       {/* 医疗免责声明弹窗 */}
       <MedicalDisclaimerSheet
         visible={disclaimerVisible}