feat: implement user profile management with avatars, login, and personal data

- Add avatar upload functionality with public URL access.
- Implement user login with email and password authentication.
- Create endpoints for fetching and updating the authenticated user's profile.
- Set up database migrations for user profiles, including email and role management.
- Introduce personal data management linked to user profiles.
- Add email verification process with welcome email templates.

frontend/env.d.ts

@@ -0,0 +1,15 @@
+/**
+ * Add types (that are not auto-magically added by Quasar CLI already)
+ * for your custom variables to avoid TypeScript errors, like dynamic
+ * process.env variables or definitions in dotenv files configured ONLY
+ * for the /quasar.config file itself.
+ *
+ * https://quasar.dev/quasar-cli-vite/handling-import-meta-env#type-inference
+ *
+ * @example
+ * interface ImportMetaEnv {
+ *   readonly MY_VAR: string;
+ *   readonly MY_OTHER_VAR: string;
+ * }
+ */
+interface ImportMetaEnv {}