feat(overview): add templates service using NC Files API

Signed-off-by: James Manuel <moodyjmz@users.noreply.github.com>

Author: moodyjmz

src/services/templates.js

@@ -0,0 +1,38 @@
+/**
+ * SPDX-FileCopyrightText: 2026 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+// Mirrors apps/files/src/services/Templates.js — uses NC core Files API, not richdocuments OCS.
+
+import axios from '@nextcloud/axios'
+import { generateOcsUrl } from '@nextcloud/router'
+
+/**
+ * Fetch all template creators registered with the NC Files API.
+ * Returns an array of TemplateFileCreator objects, each with:
+ *   app, label, extension, mimetypes[], templates[]
+ *
+ * @return {Promise<object[]>}
+ */
+export async function getTemplates() {
+	const response = await axios.get(generateOcsUrl('apps/files/api/v1/templates'))
+	return response.data.ocs.data
+}
+
+/**
+ * Create a new file from a template via the NC Files API.
+ *
+ * @param {string} filePath Destination path for the new file
+ * @param {string} templatePath Source template path
+ * @param {string} templateType Template type e.g. 'user'
+ * @return {Promise<object>}
+ */
+export async function createFromTemplate(filePath, templatePath, templateType) {
+	const response = await axios.post(generateOcsUrl('apps/files/api/v1/templates/create'), {
+		filePath,
+		templatePath,
+		templateType,
+	})
+	return response.data.ocs.data
+}