- npm updates

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

app/models/dataset_reference.ts

@@ -0,0 +1,61 @@
+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 DatasetReference extends BaseModel {
+    public static namingStrategy = new SnakeCaseNamingStrategy();
+    public static primaryKey = 'id';
+    public static table = 'document_references';
+    public static fillable: string[] = ['value', 'label', 'type', 'relation'];
+
+    @column({
+        isPrimary: true,
+    })
+    public id: number;
+
+    @column({})
+    public document_id: number;
+
+    @column({})
+    public related_document_id?: number;
+
+    @column({})
+    public type: string;
+
+    @column({})
+    public relation: string;
+
+    @column({})
+    public value: string;
+
+    @column({})
+    public label: string;
+
+    @column.dateTime({
+        autoCreate: true,
+    })
+    public created_at?: DateTime;
+
+    @column.dateTime({
+        autoCreate: true,
+        autoUpdate: true,
+    })
+    public updated_at?: DateTime;
+
+    @belongsTo(() => Dataset, {
+        foreignKey: 'document_id',
+    })
+    public dataset: BelongsTo<typeof Dataset>;
+
+    // Reference.belongsTo(Dataset, {
+    //     foreignKey: "related_document_id",
+    //     as: "new_dataset",
+    //     include: "identifier"
+    // });
+    @belongsTo(() => Dataset, {
+        foreignKey: 'related_document_id',
+    })
+    public new_dataset: BelongsTo<typeof Dataset>;
+}