docs(website): 重构关于页面布局和内容

- 更新页面布局，优化导航栏和面包屑导航
- 重新组织页面内容，突出公司使命和价值观
- 添加发展历程和核心团队介绍
- 更新合作伙伴展示方式
- 调整页脚内容，增加社交媒体链接

backend/package.json

@@ -0,0 +1,39 @@
+{
+  "name": "niu-mall-backend",
+  "version": "1.0.0",
+  "description": "活牛采购智能数字化系统后端服务",
+  "main": "src/main.js",
+  "scripts": {
+    "start": "node src/main.js",
+    "dev": "nodemon src/main.js",
+    "test": "jest",
+    "sync-db": "node src/scripts/syncDatabase.js"
+  },
+  "dependencies": {
+    "bcryptjs": "^2.4.3",
+    "cors": "^2.8.5",
+    "express": "^4.21.2",
+    "helmet": "^7.2.0",
+    "jsonwebtoken": "^9.0.2",
+    "morgan": "^1.10.1",
+    "mysql2": "^3.14.4",
+    "redis": "^4.6.7",
+    "sequelize": "^6.37.7",
+    "swagger-ui-express": "^5.0.1",
+    "uuid": "^11.1.0",
+    "yamljs": "^0.3.0"
+  },
+  "devDependencies": {
+    "jest": "^29.7.0",
+    "nodemon": "^3.1.10",
+    "supertest": "^6.3.4"
+  },
+  "keywords": [
+    "niu-mall",
+    "livestock",
+    "procurement",
+    "digital"
+  ],
+  "author": "NiuMall Team",
+  "license": "MIT"
+}