- npm updates

- renamed 'models' and 'validators' folders
- removed unneccessary files in contracts folder

app/models/dataset_identifier.ts

@@ -0,0 +1,50 @@
+import { column, SnakeCaseNamingStrategy, belongsTo } from '@adonisjs/lucid/orm';
+import { DateTime } from 'luxon';
+import Dataset from './dataset.js';
+import BaseModel from './base_model.js';
+import type { BelongsTo } from "@adonisjs/lucid/types/relations";
+
+export default class DatasetIdentifier extends BaseModel {
+    public static namingStrategy = new SnakeCaseNamingStrategy();
+    public static primaryKey = 'id';
+    public static table = 'dataset_identifiers';
+    public static fillable: string[] = ['value', 'label', 'type', 'relation'];
+
+    @column({
+        isPrimary: true,
+    })
+    public id: number;
+
+    @column({})
+    public dataset_id: number;
+
+    @column({})
+    public type: string;
+
+    @column({})
+    public status: string;
+
+    @column({})
+    public value: string;
+
+    @column.dateTime({
+        autoCreate: true,
+    })
+    public created_at?: DateTime;
+
+    @column.dateTime({
+        autoCreate: true,
+        autoUpdate: true,
+    })
+    public updated_at?: DateTime;
+
+    @belongsTo(() => Dataset, {
+        foreignKey: 'dataset_id',
+    })
+    public dataset: BelongsTo<typeof Dataset>;
+
+    // // Specify the relationships to touch when this model is updated
+    // public static get touches() {
+    //     return ['dataset'];
+    // }
+}