feat(server): add pdf template crud endpoints

packages/server/src/services/PdfTemplate/GetPdfTemplate.ts

@@ -0,0 +1,29 @@
+import { Knex } from 'knex';
+import { Inject, Service } from 'typedi';
+import HasTenancyService from '../Tenancy/TenancyService';
+
+@Service()
+export class GetPdfTemplate {
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  /**
+   * Retrieves a pdf template by its ID.
+   * @param {number} tenantId - The ID of the tenant.
+   * @param {number} templateId - The ID of the pdf template to retrieve.
+   * @return {Promise<any>} - The retrieved pdf template.
+   */
+  async getPdfTemplate(
+    tenantId: number,
+    templateId: number,
+    trx?: Knex.Transaction
+  ): Promise<any> {
+    const { PdfTemplate } = this.tenancy.models(tenantId);
+
+    const template = await PdfTemplate.query(trx)
+      .findById(templateId)
+      .throwIfNotFound();
+
+    return template;
+  }
+}