refactor(database): migrate to new modular database layer and unify data access

- Remove legacy database.ts, LocalDataSource.ts, and MessageRepository.ts
- Create new src/database/ module with messageRepository, userCacheRepository, conversationRepository, and groupCacheRepository
- Update all consumers to import from @/database instead of services/database
- Add web platform blur handling for modal components to fix focus issues
- Flatten SystemMessageItem and NotificationsScreen styles for consistent design
- Add draggable slider in ChatSettingsScreen and dynamic font size support
- Introduce 9 new chat color themes
- Add profile screens for about, terms, and privacy policy with navigation routes
- Add policy links to login and registration screens
- Fix post share URL format from /posts/ to /post/

src/stores/user/UserManager.ts

@@ -1,46 +1,34 @@
 /**
- * UserManager - 用户管ç<EFBFBD>†æ ¸å¿ƒæ¨¡å<EFBFBD>—（é‡<EFBFBD>构版ï¼?
+ * UserManager - 用户管理核心模块（重构版）
  *
- * 使用 Zustand store 进行状æ€<EFBFBD>管ç<EFBFBD>?
- * ä¿<EFBFBD>æŒ<EFBFBD>与旧 API çš„å<E2809E>‘å<E28098>Žå…¼å®?
+ * 使用 Zustand store 进行状态管理
+ * 保持与旧 API 的向后兼容
  */
 
 import type { UserDTO } from '../../types/dto';
 import { authService } from '../../services/authService';
-import {
-  getCurrentUserCache,
-  getUserCache,
-  saveCurrentUserCache,
-  saveUserCache,
-} from '../../services/database';
+import { userCacheRepository } from '@/database';
 import { useUserManagerStore } from './userStore';
 import { createCacheEntry, isCacheExpired, DEFAULT_TTL } from '../utils/cache';
 
-// ==================== UserManager ç±?====================
+// ==================== UserManager 类 ====================
 
 class UserManager {
-  /**
-   * 获å<C2B7>–当å‰<C3A5>用户
-   * 支æŒ<C3A6>缓存过期检查和å<C592>Žå<C5BD>°åˆ·æ–°
-   */
   async getCurrentUser(forceRefresh = false): Promise<UserDTO | null> {
     const store = useUserManagerStore.getState();
     const entry = store.currentUserEntry;
 
-    // 有效缓存
     if (!forceRefresh && entry && !isCacheExpired(entry)) {
       return entry.data;
     }
 
-    // 过期缓存：å<C5A1>Žå<C5BD>°åˆ·æ–°ï¼Œç«‹å<E280B9>³è¿”回旧数æ<C2B0>?
     if (!forceRefresh && entry && isCacheExpired(entry)) {
       this.refreshCurrentUserInBackground();
       return entry.data;
     }
 
-    // å°<C3A5>试从本地数æ<C2B0>®åº“加载
     if (!forceRefresh) {
-      const cachedFromDb = await getCurrentUserCache();
+      const cachedFromDb = await userCacheRepository.getCurrent();
       if (cachedFromDb) {
         const newEntry = createCacheEntry(cachedFromDb, DEFAULT_TTL.USER);
         store.setCurrentUserEntry(newEntry);
@@ -49,23 +37,19 @@ class UserManager {
       }
     }
 
-    // å<>‘èµ· API 请求
     return this.dedupe('users:current', async () => {
       const user = await authService.fetchCurrentUserFromAPI();
       const newEntry = createCacheEntry(user, DEFAULT_TTL.USER);
       store.setCurrentUserEntry(newEntry);
 
       if (user) {
-        saveCurrentUserCache(user).catch(() => {});
-        saveUserCache(user).catch(() => {});
+        userCacheRepository.saveCurrent(user).catch(() => {});
+        userCacheRepository.save(user).catch(() => {});
       }
       return user;
     });
   }
 
-  /**
-   * å<>Žå<C5BD>°åˆ·æ–°å½“å‰<C3A5>用户
-   */
   private refreshCurrentUserInBackground(): void {
     this.dedupe('users:current:bg', async () => {
       const store = useUserManagerStore.getState();
@@ -74,8 +58,8 @@ class UserManager {
       store.setCurrentUserEntry(newEntry);
 
       if (user) {
-        saveCurrentUserCache(user).catch(() => {});
-        saveUserCache(user).catch(() => {});
+        userCacheRepository.saveCurrent(user).catch(() => {});
+        userCacheRepository.save(user).catch(() => {});
       }
       return user;
     }).catch((error) => {
@@ -83,27 +67,21 @@ class UserManager {
     });
   }
 
-  /**
-   * æ ¹æ<C2B9>® ID 获å<C2B7>–用户
-   */
   async getUserById(userId: string, forceRefresh = false): Promise<UserDTO | null> {
     const store = useUserManagerStore.getState();
     const entry = store.usersMap.get(userId);
 
-    // 有效缓存
     if (!forceRefresh && entry && !isCacheExpired(entry)) {
       return entry.data;
     }
 
-    // 过期缓存：å<C5A1>Žå<C5BD>°åˆ·æ–°ï¼Œç«‹å<E280B9>³è¿”回旧数æ<C2B0>?
     if (!forceRefresh && entry && isCacheExpired(entry)) {
       this.refreshUserByIdInBackground(userId);
       return entry.data;
     }
 
-    // å°<C3A5>试从本地数æ<C2B0>®åº“加载
     if (!forceRefresh) {
-      const cachedFromDb = await getUserCache(userId);
+      const cachedFromDb = await userCacheRepository.get(userId);
       if (cachedFromDb) {
         const newEntry = createCacheEntry(cachedFromDb, DEFAULT_TTL.USER);
         store.setUser(userId, cachedFromDb);
@@ -112,7 +90,6 @@ class UserManager {
       }
     }
 
-    // å<>‘èµ· API 请求
     return this.dedupe(`users:detail:${userId}`, async () => {
       const store = useUserManagerStore.getState();
       const user = await authService.fetchUserByIdFromAPI(userId);
@@ -120,15 +97,12 @@ class UserManager {
       store.setUser(userId, user);
 
       if (user) {
-        saveUserCache(user).catch(() => {});
+        userCacheRepository.save(user).catch(() => {});
       }
       return user;
     });
   }
 
-  /**
-   * å<>Žå<C5BD>°åˆ·æ–°ç”¨æˆ·
-   */
   private refreshUserByIdInBackground(userId: string): void {
     this.dedupe(`users:detail:bg:${userId}`, async () => {
       const store = useUserManagerStore.getState();
@@ -137,7 +111,7 @@ class UserManager {
       store.setUser(userId, user);
 
       if (user) {
-        saveUserCache(user).catch(() => {});
+        userCacheRepository.save(user).catch(() => {});
       }
       return user;
     }).catch((error) => {
@@ -145,16 +119,10 @@ class UserManager {
     });
   }
 
-  /**
-   * 使缓存失�
-   */
   invalidateUsers(): void {
     useUserManagerStore.getState().invalidateAll();
   }
 
-  /**
-   * 请求去é‡<C3A9>
-   */
   private async dedupe<T>(key: string, fetcher: () => Promise<T>): Promise<T> {
     const store = useUserManagerStore.getState();
     const pending = store.getPendingRequest<T>(key);
@@ -168,11 +136,8 @@ class UserManager {
   }
 }
 
-// ==================== å<>•ä¾‹å¯¼å‡º ====================
-
 export const userManager = new UserManager();
 
-// 导出类以支æŒ<C3A6>类型检查和测试
 export { UserManager };
 
-export default userManager;
+export default userManager;