feat: clean up the imported temp files

packages/server/src/models/Import.ts

@@ -1,69 +0,0 @@
-import TenantModel from 'models/TenantModel';
-
-export default class Import extends TenantModel {
-  resource!: string;
-  mapping!: string;
-  columns!: string;
-  params!: Record<string, any>;
-  
-  /**
-   * Table name.
-   */
-  static get tableName() {
-    return 'imports';
-  }
-
-  /**
-   * Virtual attributes.
-   */
-  static get virtualAttributes() {
-    return ['mappingParsed'];
-  }
-
-  /**
-   * Timestamps columns.
-   */
-  get timestamps() {
-    return [];
-  }
-
-  /**
-   * Relationship mapping.
-   */
-  static get relationMappings() {
-    return {};
-  }
-
-  /**
-   * Detarmines whether the import is mapped.
-   * @returns {boolean}
-   */
-  public get isMapped() {
-    return Boolean(this.mapping);
-  }
-
-  public get columnsParsed() {
-    try {
-      return JSON.parse(this.columns);
-    } catch {
-      return [];
-    }
-  }
-
-
-  public get paramsParsed() {
-    try {
-      return JSON.parse(this.params);
-    } catch {
-      return [];
-    }
-  }
-
-  public get mappingParsed() {
-    try {
-      return JSON.parse(this.mapping);
-    } catch {
-      return [];
-    }
-  }
-}