full upgrade (#31)

* ✨ chore: update CI workflow to include testing and multi-arch build (#29)

* ✨ chore: remove unused dependencies from package-lock.json and updated to a better local dev environment (#30)

* ✨ test: add unit tests

* ✨ test: add unit tests for whole project

* ✨ feat: add whatwg-fetch for improved fetch support

* ✨ chore: update Node.js version to 22 in workflow

* ✨ refactor: update types and improve email handling tests

* ✨ refactor: remove unused imports

* ✨ fix: normalize image name to lowercase in workflows

* ✨ fix: ensure Docker image names are consistently lowercase

* ✨ chore: update

* ✨ chore: update base URL to use secret variable

* ✨ chore: update to login to ghcr

* ✨ fix: add missing 'fi' to close if statement in workflow

app/__tests__/__mocks__/nodemailer.js

@@ -0,0 +1,9 @@
+/**
+ * Jest Mock
+ * ./__mocks__/nodemailer.js
+ **/
+import nodemailer from 'nodemailer';
+import { getMockFor } from 'nodemailer-mock';
+
+const nodemailermock = getMockFor(nodemailer);
+export default nodemailermock;