refactor(post): consolidate post sync to PostSyncService and remove ProcessPostUseCase

- Replace ProcessPostUseCase with new PostSyncService in src/services/post/
- Add postListStore for state management in src/stores/post/
- Remove deprecated ProcessPostUseCase and ProcessMessageUseCase files
- Delete architecture documentation files (ARCHITECTURE_REFACTOR_PLAN.md, architecture-comparison-report.md)
- Update all consumers (HomeScreen, PostDetailScreen, SearchScreen, useUserProfile, useDifferentialPosts)
- Simplify postService to only contain API layer methods
- Remove unused type exports from message stores

BREAKING CHANGE: ProcessPostUseCase and ProcessMessageUseCase have been removed.
Use postSyncService for post operations instead.

src/stores/message/MessageManager.ts

@@ -29,9 +29,6 @@ import { useMessageStore, normalizeConversationId } from './store';
 
 // 重新导出类型，保持兼容性
 export type {
-  MessageEventType,
-  MessageEvent,
-  MessageSubscriber,
   MessageManagerState,
   ReadStateRecord,
   MessageManagerConversationListDeps,

src/stores/message/index.ts

@@ -23,15 +23,10 @@ export type { MessageState, MessageActions, MessageStore } from './store';
 // ==================== 类型导出 ====================
 // 从 types.ts 导出所有类型
 export type {
-  MessageEventType,
-  MessageEvent,
-  MessageSubscriber,
   MessageManagerState,
   ReadStateRecord,
   MessageManagerConversationListDeps,
   HandleNewMessageOptions,
-  // 服务接口类型（保留向后兼容，但服务层已不再使用）
-  IMessageStateManager,
   IMessageDeduplication,
   IUserCacheService,
   IReadReceiptManager,

src/stores/message/types.ts

@@ -1,193 +1,48 @@
-/**
- * 消息管理类型定义模块
- * 包含所有与消息管理相关的类型、接口和类型别名
- */
-
 import type { ConversationResponse, MessageResponse, UserDTO } from '../../types/dto';
 import type { IConversationListPagedSource } from '../conversationListSources';
 
-// ==================== 事件类型 ====================
-
-/**
- * 消息事件类型枚举
- * 定义了所有可能的消息事件类型
- */
-export type MessageEventType =
-  | 'conversations_updated'
-  | 'conversations_loading'
-  | 'messages_updated'
-  | 'unread_count_updated'
-  | 'connection_changed'
-  | 'message_sent'
-  | 'message_read'
-  | 'message_received'
-  | 'message_recalled'
-  | 'typing_status'
-  | 'group_notice'
-  | 'error';
-
-/**
- * 消息事件接口
- * 所有订阅者接收的事件对象结构
- */
-export interface MessageEvent {
-  type: MessageEventType;
-  payload: any;
-  timestamp: number;
-}
-
-/**
- * 消息订阅者类型
- */
-export type MessageSubscriber = (event: MessageEvent) => void;
-
-// ==================== 状态接口 ====================
-
-/**
- * 消息管理器内部状态接口
- * 定义了所有需要管理的状态字段
- */
 export interface MessageManagerState {
-  // 会话相关
   conversations: Map<string, ConversationResponse>;
   conversationList: ConversationResponse[];
-
-  // 消息相关 - 按会话ID存储
   messagesMap: Map<string, MessageResponse[]>;
-
-  // 未读数
   totalUnreadCount: number;
   systemUnreadCount: number;
-
-  // 连接状态
   isWSConnected: boolean;
-
-  // 当前活动会话ID（用户正在查看的会话）
   currentConversationId: string | null;
-
-  // 加载状态
   isLoadingConversations: boolean;
-  loadingMessagesSet: Set<string>; // 正在加载消息的会话ID集合
-
-  // 初始化状态
+  loadingMessagesSet: Set<string>;
   isInitialized: boolean;
-
-  // 订阅者
-  subscribers: Set<MessageSubscriber>;
-
-  // 输入状态 - 按群组ID存储正在输入的用户ID列表
   typingUsersMap: Map<string, string[]>;
-
-  // 当前用户的禁言状态 - 按群组ID存储
   mutedStatusMap: Map<string, boolean>;
 }
 
-// ==================== 已读状态相关 ====================
-
-/**
- * 已读状态记录接口
- * 用于跟踪已读操作的状态和保护机制
- */
 export interface ReadStateRecord {
-  /** 标记已读的时间戳 */
   timestamp: number;
-  /** 状态版本号，用于防止旧数据覆盖新数据 */
   version: number;
-  /** 已上报的已读序号（用于去重） */
   lastReadSeq: number;
-  /** 清除保护的定时器ID */
   clearTimer?: ReturnType<typeof setTimeout>;
 }
 
-// ==================== 依赖注入接口 ====================
-
-/**
- * 可注入会话列表源，便于测试或替换实现
- */
 export interface MessageManagerConversationListDeps {
   remoteConversationListSource?: IConversationListPagedSource;
   localConversationListSource?: IConversationListPagedSource;
-  /**
-   * 未传 remoteConversationListSource 时：默认 `cursor`（/conversations/cursor），
-   * `offset` 为常规页码（/conversations?page=&page_size=）。
-   */
   remoteListKind?: 'cursor' | 'offset';
-  /** 与 remoteListKind 搭配，默认与 CONVERSATION_LIST_PAGE_SIZE 一致 */
   remoteListPageSize?: number;
 }
 
-// ==================== 消息处理选项 ====================
-
-/**
- * 处理新消息的选项
- */
 export interface HandleNewMessageOptions {
-  /** 是否抑制未读数增加 */
   suppressUnreadIncrement?: boolean;
-  /** 是否抑制震动 */
   suppressVibration?: boolean;
-  /** 是否抑制会话更新 */
   suppressConversationUpdates?: boolean;
-  /** 是否抑制自动标记已读 */
   suppressAutoMarkAsRead?: boolean;
 }
 
-// ==================== 服务接口 ====================
-
-/**
- * 状态管理器接口
- * 定义状态管理器需要实现的方法
- */
-export interface IMessageStateManager {
-  // 获取状态
-  getState(): MessageManagerState;
-  getConversations(): ConversationResponse[];
-  getConversation(conversationId: string): ConversationResponse | null;
-  getMessages(conversationId: string): MessageResponse[];
-  getUnreadCount(): { total: number; system: number };
-  isConnected(): boolean;
-  isLoading(): boolean;
-  isLoadingMessages(conversationId: string): boolean;
-  getTypingUsers(groupId: string): string[];
-  isMuted(groupId: string): boolean;
-  getActiveConversation(): string | null;
-
-  // 设置状态
-  setConversations(conversations: Map<string, ConversationResponse>): void;
-  updateConversation(conversation: ConversationResponse): void;
-  removeConversation(conversationId: string): void;
-  setMessages(conversationId: string, messages: MessageResponse[]): void;
-  addMessage(conversationId: string, message: MessageResponse): void;
-  updateMessage(conversationId: string, messageId: string, updates: Partial<MessageResponse>): void;
-  setUnreadCount(total: number, system: number): void;
-  setSSEConnected(connected: boolean): void;
-  setCurrentConversation(conversationId: string | null): void;
-  setLoading(loading: boolean): void;
-  setLoadingMessages(conversationId: string, loading: boolean): void;
-  setTypingUsers(groupId: string, users: string[]): void;
-  setMutedStatus(groupId: string, isMuted: boolean): void;
-  setInitialized(initialized: boolean): void;
-
-  // 订阅机制
-  subscribe(subscriber: MessageSubscriber): () => void;
-  notifySubscribers(event: MessageEvent): void;
-
-  // 重置
-  reset(): void;
-}
-
-/**
- * 消息去重服务接口
- */
 export interface IMessageDeduplication {
   isMessageProcessed(messageId: string): boolean;
   markMessageAsProcessed(messageId: string): void;
   cleanupProcessedMessageIds(): void;
 }
 
-/**
- * 用户缓存服务接口
- */
 export interface IUserCacheService {
   getSenderInfo(userId: string): Promise<UserDTO | null>;
   enrichMessagesWithSenderInfo(
@@ -197,9 +52,6 @@ export interface IUserCacheService {
   ): void;
 }
 
-/**
- * 已读回执管理器接口
- */
 export interface IReadReceiptManager {
   markAsRead(conversationId: string, seq: number): Promise<void>;
   markAllAsRead(): Promise<void>;
@@ -210,9 +62,6 @@ export interface IReadReceiptManager {
   getPendingReadMap(): Map<string, ReadStateRecord>;
 }
 
-/**
- * 会话操作接口
- */
 export interface IConversationOperations {
   createConversation(userId: string): Promise<ConversationResponse | null>;
   updateConversation(conversationId: string, updates: Partial<ConversationResponse>): void;
@@ -225,9 +74,6 @@ export interface IConversationOperations {
   decrementSystemUnreadCount(count?: number): void;
 }
 
-/**
- * 消息发送服务接口
- */
 export interface IMessageSendService {
   sendMessage(
     conversationId: string,
@@ -236,9 +82,6 @@ export interface IMessageSendService {
   ): Promise<MessageResponse | null>;
 }
 
-/**
- * 消息同步服务接口
- */
 export interface IMessageSyncService {
   fetchConversations(forceRefresh?: boolean, source?: string): Promise<void>;
   loadMoreConversations(): Promise<void>;
@@ -249,9 +92,6 @@ export interface IMessageSyncService {
   canLoadMoreConversations(): boolean;
 }
 
-/**
- * WebSocket 消息处理器接口
- */
 export interface IWSMessageHandler {
   connect(): void;
   disconnect(): void;