Lots of frontend stuff

- Passkey support on the way
- Add biome file
- added humans.txt
- tests

frontend-reactive/app/services/authentication.ts

@@ -0,0 +1,13 @@
+import Service from '@ember/service'
+
+export default class AuthenticationService extends Service {}
+
+// Don't remove this declaration: this is what enables TypeScript to resolve
+// this service using `Owner.lookup('service:authentication')`, as well
+// as to check when you pass the service name as an argument to the decorator,
+// like `@service('authentication') declare altName: AuthenticationService;`.
+declare module '@ember/service' {
+  interface Registry {
+    authentication: AuthenticationService
+  }
+}