feat(services): add CategoryService with createCategory function

A new CategoryService has been added in the services layer. This includes a function createCategory for creating a new category using IDbCategory data. Some placeholders for future features such as get, delete and retrieve by id or slug are also included.

Issue: #11
Signed-off-by: Mathis <yidhra@tuta.io>

src/services/category.service.ts

@@ -0,0 +1,47 @@
+//FEAT Create new category
+import type IDbCategory from "@interfaces/database/IDbCategory";
+import * as uuid from 'uuid'
+import {Logger} from "tslog";
+import MysqlService from "@services/mysql.service";
+
+const DbHandler = new MysqlService.Handler('CategoryService')
+const logger = new Logger({name: 'CategoryService'})
+
+
+
+/**
+ * Creates a new category with the given data.
+ *
+ * @param {IDbCategory} data - The category data.
+ * @returns {Promise<unknown>} A promise that resolves with the created category.
+ *                            If an error occurs, the promise will reject with the error.
+ */
+async function createCategory(data: IDbCategory): Promise<unknown> {
+	logger.info(`Creating a new category... (${data.display_name})`)
+	try {
+		return await MysqlService.Category.insert(DbHandler, {
+			id: uuid.v4(undefined, undefined, undefined),
+			display_name: data.display_name,
+			slug_name: data.slug_name
+		})
+	} catch (e) {
+		logger.error(`Error creating category: ${e.message}`);
+    return;
+	}
+}
+
+//FEAT Get all categories
+
+//FEAT Get a category (slug)
+
+//FEAT Get a category (id)
+
+//FEAT Get all models in category (slug)
+
+//FEAT Delete a category (id)
+
+const CategoryService = {
+	create: createCategory
+}
+
+export default CategoryService;