feat: 新建课程作业模块（基于校园公告模板），实现 v1 教师端与 v2 学生/家长端

以 CampusAnnouncement 为模板建立课程作业模块，重命名标识符与文案（notice→homework、公告→作业），
并保留其顶栏/左栏外壳，按课程作业业务重搭数据模型与页面。

- mock(src/assets/mock/homeworkapi.ts)：作业化数据模型（学科/截止/提交方式/流程状态），
  班级花名册→学生个体提交记录与批改（确定性分布），端点 List/SendList/Submissions/
  SubmissionDetail/Grade/Remind/Statis 等；左栏菜单按角色返回。
- v1 教师端：布置作业(新增学科/截止/提交方式)、我布置的(状态标签+提交/批改进度)、
  提交情况(Submissions，含内联批改)、批改中心(Grade 逐份批改)、作业统计(成绩分布+进度)。
- v2 学生/家长端(端分离)：SetRole + viewerRole 切换身份；StudentHomeworks.vue 承担
  今日作业/待订正(学生可提交/重交)与孩子作业(家长只读+提醒)；新增 MyHomeworks/Submit/
  MySubmission/ParentNudge 接口与类型。
- 类型与 api 模块同步；dev:mock 三角色 curl 端到端验证通过。

package.json

@@ -0,0 +1,53 @@
+{
+  "name": "course-homework",
+  "private": true,
+  "version": "0.0.0",
+  "nodeversion": "20.19.4",
+  "type": "module",
+  "scripts": {
+    "dev": "vite --mode dev",
+    "dev:mock": "vite --mode mock",
+    "build": "vite build --mode base",
+    "build:base": "vite build --mode base",
+    "build:ld": "vite build --mode ld",
+    "build:prod": "vite build --mode prod",
+    "preview": "vite preview",
+    "api:gen": "alova gen -f"
+  },
+  "dependencies": {
+    "@open-file-viewer/core": "^0.1.43",
+    "@open-file-viewer/vue": "^0.1.43",
+    "@types/lodash": "^4.14.196",
+    "@wangeditor/editor": "^5.1.23",
+    "@wangeditor/editor-for-vue": "^5.1.12",
+    "alova": "^3.4.0",
+    "axios": "^0.24.0",
+    "lodash": "^4.17.21",
+    "mitt": "^3.0.1",
+    "mockjs": "^1.1.0",
+    "node-sass": "latest",
+    "pdfjs-dist": "^4.10.38",
+    "pinia": "^2.1.4",
+    "sass": "^1.64.1",
+    "view-ui-plus": "^1.3.16",
+    "vite-plugin-mock": "2.9.6",
+    "vue": "^3.4.19",
+    "vue-router": "4",
+    "vuedraggable": "^4.1.0"
+  },
+  "devDependencies": {
+    "@alova/wormhole": "^1.5.0",
+    "@types/node": "^20.4.4",
+    "@unocss/preset-rem-to-px": "^66.6.0",
+    "@unocss/preset-uno": "^66.6.0",
+    "@vitejs/plugin-vue": "^5.0.4",
+    "fast-glob": "^3.3.2",
+    "typescript": "^5.2.2",
+    "unocss": "^66.6.0",
+    "unplugin-auto-import": "0.18.3",
+    "vite": "^5.1.4",
+    "vite-plugin-html": "^3.2.2",
+    "vite-plugin-svg-icons": "^2.0.1",
+    "vue-tsc": "^1.8.27"
+  }
+}