refactor: delete remain of department and users

schema.sql

@@ -15,21 +15,6 @@ CREATE TABLE account
   DEFAULT CHARSET = utf8mb4
   COLLATE = utf8mb4_unicode_ci COMMENT ='系统用户/认证信息';
 
--- 部门表
-DROP TABLE IF EXISTS departments;
-CREATE TABLE departments
-(
-    id          BIGINT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
-    name        VARCHAR(100)    NOT NULL,
-    code        VARCHAR(50),
-    parent_id   BIGINT UNSIGNED,
-    description TEXT,
-    created_at  DATETIME        NOT NULL DEFAULT CURRENT_TIMESTAMP,
-    updated_at  DATETIME        NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
-    CONSTRAINT fk_departments_parent FOREIGN KEY (parent_id) REFERENCES departments (id) ON DELETE SET NULL
-) ENGINE = InnoDB
-  DEFAULT CHARSET = utf8mb4 COMMENT ='组织/部门';
-
 -- 物品类别
 DROP TABLE IF EXISTS categories;
 CREATE TABLE categories