chore: 配置 GitHub Pages 部署

- 添加 homepage 字段指向 GitHub Pages 地址
- 添加 predeploy 和 deploy 脚本
- 安装 gh-pages 依赖

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

package.json

@@ -2,6 +2,7 @@
   "name": "foreign-trade-education-web",
   "version": "0.1.0",
   "private": true,
+  "homepage": "https://du9uay.github.io/AIcourse-education-web",
   "dependencies": {
     "@dnd-kit/core": "^6.3.1",
     "@dnd-kit/sortable": "^10.0.0",
@@ -22,7 +23,9 @@
     "start": "react-scripts start",
     "build": "react-scripts build",
     "test": "react-scripts test",
-    "eject": "react-scripts eject"
+    "eject": "react-scripts eject",
+    "predeploy": "npm run build",
+    "deploy": "gh-pages -d build"
   },
   "eslintConfig": {
     "extends": [
@@ -46,6 +49,7 @@
     "@types/jest": "^27.5.2",
     "@types/react-beautiful-dnd": "^13.1.8",
     "autoprefixer": "^10.4.16",
+    "gh-pages": "^6.3.0",
     "postcss": "^8.4.32",
     "tailwindcss": "^3.3.6"
   }