refactor(stores): reorganize flat store files into modular directory structure

Migrate from flat file organization to modular directory structure under src/stores/:

- auth/: authStore, registerStore, verificationStore, sessionStore
- call/: callStore
- settings/: chatSettingsStore, themeStore
- ui/: homeTabBarVisibilityStore, homeTabPressStore
- utils/: routePayloadCache
- group/sources.ts, group/profileResolver.ts
- message/sources.ts
- post/sources.ts

Update all import paths across components and screens to use new module paths. Maintain backward compatibility through deprecated re-export files for gradual migration.

src/screens/message/GroupInfoScreen.tsx

@@ -49,8 +49,8 @@ import { User } from '../../types';
 import { blurActiveElement } from '../../infrastructure/platform';
 import { firstRouteParam } from '../../navigation/paramUtils';
 import * as hrefs from '../../navigation/hrefs';
-import { messageManager } from '../../stores/messageManager';
-import { groupManager } from '../../stores/groupManager';
+import { messageManager } from '../../stores/message';
+import { groupManager } from '../../stores/group';
 import MutualFollowSelectorModal from './components/MutualFollowSelectorModal';
 import { AppBackButton } from '../../components/common';
 

src/screens/message/GroupInviteDetailScreen.tsx

@@ -5,9 +5,9 @@ import { SafeAreaView } from 'react-native-safe-area-context';
 import { MaterialCommunityIcons } from '@expo/vector-icons';
 import { spacing, borderRadius, fontSizes, useAppColors, type AppColors } from '../../theme';
 import { Avatar, Text } from '../../components/common';
-import { routePayloadCache } from '../../stores/routePayloadCache';
+import { routePayloadCache } from '../../stores';
 import { groupService } from '@/services/message';
-import { groupManager } from '../../stores/groupManager';
+import { groupManager } from '../../stores/group';
 import { GroupMemberResponse } from '../../types/dto';
 import { GroupInfoSummaryCard, DecisionFooter } from './components/GroupRequestShared';
 

src/screens/message/GroupMembersScreen.tsx

@@ -27,11 +27,11 @@ import { spacing, fontSizes, borderRadius, useAppColors, type AppColors } from '
 import { useAuthStore } from '../../stores';
 import { groupService } from '@/services/message';
 import {
-  createRemoteGroupMemberListSource,
+  createCursorGroupMemberListSource,
   GroupMemberListSourceKind,
-  IGroupMemberListPagedSource,
-} from '../../stores/groupMemberListSources';
-import { enrichGroupMembersWithUserProfiles } from '../../stores/groupMemberProfileResolver';
+  ICursorGroupMemberListPagedSource,
+} from '../../stores/group';
+import { enrichGroupMembersWithUserProfiles } from '../../stores/group';
 import { Avatar, Text, Button, Loading, EmptyState, Divider, ResponsiveContainer, AppBackButton } from '../../components/common';
 import { useResponsive, useBreakpointGTE } from '../../hooks/useResponsive';
 import { useCursorPagination } from '../../hooks/useCursorPagination';
@@ -75,8 +75,8 @@ const GroupMembersScreen: React.FC = () => {
     return GRID_CONFIG.mobile;
   }, [width]);
 
-  const memberListSource = useMemo<IGroupMemberListPagedSource>(() => {
-    return createRemoteGroupMemberListSource(GROUP_MEMBER_REMOTE_LIST_KIND, groupId, 50);
+  const memberListSource = useMemo<ICursorGroupMemberListPagedSource>(() => {
+    return createCursorGroupMemberListSource(GROUP_MEMBER_REMOTE_LIST_KIND, groupId, 50);
   }, [groupId]);
 
   // 使用统一数据源 + 游标 Hook 管理成员列表

src/screens/message/GroupRequestDetailScreen.tsx

@@ -7,10 +7,10 @@ import { SafeAreaView } from 'react-native-safe-area-context';
 import { spacing, borderRadius, shadows, useAppColors, type AppColors } from '../../theme';
 import { Avatar, Text } from '../../components/common';
 import * as hrefs from '../../navigation/hrefs';
-import { routePayloadCache } from '../../stores/routePayloadCache';
+import { routePayloadCache } from '../../stores';
 import { groupService } from '@/services/message';
-import { groupManager } from '../../stores/groupManager';
-import { userManager } from '../../stores/userManager';
+import { groupManager } from '../../stores/group';
+import { userManager } from '../../stores/user';
 import { GroupInfoSummaryCard, DecisionFooter } from './components/GroupRequestShared';
 
 const GroupRequestDetailScreen: React.FC = () => {

src/screens/message/JoinGroupScreen.tsx

@@ -17,7 +17,7 @@ import { spacing, borderRadius, fontSizes, useAppColors, type AppColors } from '
 import Avatar from '../../components/common/Avatar';
 import Text from '../../components/common/Text';
 import { groupService } from '@/services/message';
-import { groupManager } from '../../stores/groupManager';
+import { groupManager } from '../../stores/group';
 import { GroupResponse, JoinType } from '../../types/dto';
 import { useCursorPagination } from '../../hooks/useCursorPagination';
 import { EmptyState } from '../../components/common';

src/screens/message/NotificationsScreen.tsx

@@ -37,7 +37,7 @@ import { Text, ResponsiveContainer } from '../../components/common';
 import { useCursorPagination } from '../../hooks/useCursorPagination';
 import * as hrefs from '../../navigation/hrefs';
 import { useMessageManagerSystemUnreadCount } from '../../stores';
-import { messageManager } from '../../stores/messageManager';
+import { messageManager } from '../../stores/message';
 
 const MESSAGE_TYPES = [
   { key: 'all', title: '全部' },

src/screens/message/PrivateChatInfoScreen.tsx

@@ -22,8 +22,8 @@ import { authService } from '@/services/auth';
 import { messageService } from '@/services/message';
 import { ApiError } from '@/services/core';
 import { messageRepository, conversationRepository } from '@/database';
-import { messageManager } from '../../stores/messageManager';
-import { userManager } from '../../stores/userManager';
+import { messageManager } from '../../stores/message';
+import { userManager } from '../../stores/user';
 import { Avatar, Text, Button, Loading, Divider } from '../../components/common';
 import { User } from '../../types';
 import * as hrefs from '../../navigation/hrefs';

src/screens/message/components/ChatScreen/GroupInfoPanel.tsx

@@ -20,7 +20,7 @@ import { Avatar, Text } from '../../../../components/common';
 import { useAppColors, spacing, fontSizes, shadows, type AppColors } from '../../../../theme';
 import { GroupMemberResponse, GroupResponse, GroupAnnouncementResponse } from '../../../../types/dto';
 import { useBreakpointGTE } from '../../../../hooks/useResponsive';
-import { groupManager } from '../../../../stores/groupManager';
+import { groupManager } from '../../../../stores/group';
 import { groupService } from '@/services/message';
 
 const { width: screenWidth } = Dimensions.get('window');

src/screens/message/components/ChatScreen/GroupInfoPanel.web.tsx

@@ -20,7 +20,7 @@ import { Avatar, Text } from '../../../../components/common';
 import { useAppColors, spacing, fontSizes, shadows, borderRadius, type AppColors } from '../../../../theme';
 import { GroupMemberResponse, GroupResponse, GroupAnnouncementResponse } from '../../../../types/dto';
 import { useBreakpointGTE } from '../../../../hooks/useResponsive';
-import { groupManager } from '../../../../stores/groupManager';
+import { groupManager } from '../../../../stores/group';
 import { groupService } from '@/services/message';
 
 const { width: screenWidth } = Dimensions.get('window');

src/screens/message/components/ChatScreen/SegmentRenderer.tsx

@@ -33,7 +33,7 @@ import {
 } from '../../../../types/dto';
 import { spacing, useAppColors, type AppColors } from '../../../../theme';
 import { SenderInfo } from './types';
-import { useChatSettingsStore } from '../../../../stores/chatSettingsStore';
+import { useChatSettingsStore } from '../../../../stores/settings';
 
 const IMAGE_MAX_WIDTH = 200;
 const IMAGE_MAX_HEIGHT = 260;

src/screens/message/components/ChatScreen/bubbleStyles.ts

@@ -5,7 +5,7 @@
 
 import { StyleSheet, ViewStyle, TextStyle } from 'react-native';
 import { spacing, type AppColors } from '../../../../theme';
-import { useChatSettingsStore } from '../../../../stores/chatSettingsStore';
+import { useChatSettingsStore } from '../../../../stores/settings';
 
 // 默认圆角，但会从 store 读取
 export const BUBBLE_RADIUS = 16;

src/screens/message/components/ChatScreen/styles.ts

@@ -6,7 +6,7 @@
 import { useMemo } from 'react';
 import { StyleSheet, Dimensions } from 'react-native';
 import { spacing, shadows, useAppColors, type AppColors } from '../../../../theme';
-import { useChatSettingsStore, CHAT_THEMES } from '../../../../stores/chatSettingsStore';
+import { useChatSettingsStore, CHAT_THEMES } from '../../../../stores/settings';
 
 const { width: SCREEN_WIDTH } = Dimensions.get('window');
 

src/screens/message/components/ChatScreen/useChatScreen.ts

@@ -28,8 +28,8 @@ import { ApiError } from '@/services/core';
 // 【新架构】使用 MessageManager
 import { useChat, useGroupTyping, useGroupMuted, messageManager, callStore } from '../../../../stores';
 import { groupService } from '@/services/message';
-import { userManager } from '../../../../stores/userManager';
-import { groupManager } from '../../../../stores/groupManager';
+import { userManager } from '../../../../stores/user';
+import { groupManager } from '../../../../stores/group';
 import * as hrefs from '../../../../navigation/hrefs';
 import { firstRouteParam } from '../../../../navigation/paramUtils';
 import {