feat(entry): 新增本地 mock 数据层

entry/src/main/ets/data/repository/HomeRepository.ets

@@ -0,0 +1,93 @@
+import { HomeData, HomeModule, IntroCard } from '../../model/HomeModels';
+import { mockDelay } from './MockUtil';
+
+/**
+ * 首页数据仓库契约。
+ */
+export abstract class HomeRepository {
+  abstract observeHome(): Promise<HomeData>;
+  abstract observeGuestHome(): Promise<HomeData>;
+}
+
+/**
+ * 本地 mock 实现：登录态与游客态两套 seed。
+ */
+export class FakeHomeRepository extends HomeRepository {
+  async observeHome(): Promise<HomeData> {
+    await mockDelay(250);
+    return FakeHomeRepository.seed(true);
+  }
+
+  async observeGuestHome(): Promise<HomeData> {
+    await mockDelay(250);
+    return FakeHomeRepository.seed(false);
+  }
+
+  private static seed(loggedIn: boolean): HomeData {
+    const data = new HomeData();
+    if (loggedIn) {
+      data.greeting = '晚上好';
+      data.displayName = '张三';
+      data.encouragement = '每日精进，持续成长';
+    } else {
+      data.greeting = '欢迎来到明缘云道场';
+      data.displayName = '游客';
+      data.encouragement = '登录后即可打卡、提交计划';
+    }
+    data.modules = FakeHomeRepository.buildModules();
+    data.intros = FakeHomeRepository.buildIntros();
+    return data;
+  }
+
+  private static buildModules(): HomeModule[] {
+    const checkin = new HomeModule();
+    checkin.id = 'checkin';
+    checkin.emoji = '📋';
+    checkin.title = '打卡介绍';
+    checkin.description = '每日打卡记录';
+
+    const plan = new HomeModule();
+    plan.id = 'plan';
+    plan.emoji = '📝';
+    plan.title = '计划介绍';
+    plan.description = '周/月/年计划';
+
+    const about = new HomeModule();
+    about.id = 'about';
+    about.emoji = 'ℹ️';
+    about.title = '关于我们';
+    about.description = '了解明缘云道场';
+
+    return [checkin, plan, about];
+  }
+
+  private static buildIntros(): IntroCard[] {
+    const list: IntroCard[] = [];
+
+    const learn = new IntroCard();
+    learn.emoji = '📚';
+    learn.heading = '学习成长工具';
+    learn.body = '明缘云道场是一款专注于个人成长的效率工具，通过每周打卡与计划管理，帮助你养成良好的学习习惯。';
+    list.push(learn);
+
+    const checkin = new IntroCard();
+    checkin.emoji = '✅';
+    checkin.heading = '周打卡';
+    checkin.body = '每周打卡，支持多种状态记录。查看小组打卡情况，与同学们互相监督、共同进步。';
+    list.push(checkin);
+
+    const plan = new IntroCard();
+    plan.emoji = '📝';
+    plan.heading = '计划管理';
+    plan.body = '提供周计划、月计划、年计划三级管理，支持文字与图片上传，让成长有迹可循。';
+    list.push(plan);
+
+    const group = new IntroCard();
+    group.emoji = '👥';
+    group.heading = '小组共学';
+    group.body = '加入学习小组，查看组员的打卡与计划完成情况，与志同道合的伙伴一起成长。';
+    list.push(group);
+
+    return list;
+  }
+}