refactor: 完成系统架构升级与模块拆分

本次提交进行了大规模的系统重构：
1. 拆分租户相关模块到platform平台层，重构租户表名与关联关系
2. 迁移日志、工单、插件等模块到对应层级，统一代码结构
3. 重构批量操作接口路径，从/available/setting改为/status/batch
4. 新增批量删除基础模型，统一处理批量操作逻辑
5. 优化导入导出接口，修正路由方法与描述信息
6. 修复循环引用问题，重构依赖注入与类型导入
7. 更新初始化脚本与路由注册，新增平台管理路由
8. 重构岗位模型，新增岗位编码字段与校验
9. 完善部门删除逻辑，新增子部门删除限制
10. 更新初始化数据与配置文件，适配新架构

backend/app/scripts/data/sys_dept.json

@@ -4,12 +4,79 @@
     "code": "GROUP",
     "order": 1,
     "status": "0",
-    "leader": "部门负责人",
-    "phone": "1582112620",
-    "email": "deptadmin@example.com",
-    "description": "集团总公司",
+    "leader": "张总",
+    "phone": "13800138000",
+    "email": "ceo@example.com",
+    "description": "集团总部",
     "parent_id": null,
     "tenant_id": 1,
-    "children": []
+    "children": [
+      {
+        "name": "技术研发部",
+        "code": "TECH",
+        "order": 1,
+        "status": "0",
+        "leader": "李工",
+        "phone": "13800138001",
+        "email": "tech@example.com",
+        "description": "负责技术研发",
+        "parent_id": null,
+        "tenant_id": 1,
+        "children": [
+          {
+            "name": "后端开发组",
+            "code": "BACKEND",
+            "order": 1,
+            "status": "0",
+            "leader": "王工",
+            "phone": "13800138002",
+            "email": "backend@example.com",
+            "description": "后端技术开发",
+            "parent_id": null,
+            "tenant_id": 1,
+            "children": []
+          },
+          {
+            "name": "前端开发组",
+            "code": "FRONTEND",
+            "order": 2,
+            "status": "0",
+            "leader": "陈工",
+            "phone": "13800138003",
+            "email": "frontend@example.com",
+            "description": "前端技术开发",
+            "parent_id": null,
+            "tenant_id": 1,
+            "children": []
+          }
+        ]
+      },
+      {
+        "name": "产品运营部",
+        "code": "PRODUCT",
+        "order": 2,
+        "status": "0",
+        "leader": "赵经理",
+        "phone": "13800138004",
+        "email": "product@example.com",
+        "description": "产品与运营",
+        "parent_id": null,
+        "tenant_id": 1,
+        "children": []
+      },
+      {
+        "name": "人力资源部",
+        "code": "HR",
+        "order": 3,
+        "status": "0",
+        "leader": "刘经理",
+        "phone": "13800138005",
+        "email": "hr@example.com",
+        "description": "人事管理",
+        "parent_id": null,
+        "tenant_id": 1,
+        "children": []
+      }
+    ]
   }
 ]