feat(auth): Revamp authentication setup (#7387)

* chore: Clean up authentication middlewares

* chore: Rename AuthUser to AuthIdentity

* feat: Define link between user, customer, and auth identity

* feat: Use links for auth, update auth context content

* fix: Adjust user create command with new auth setup

* fix: Make auth login more dynamic, review fixes

* fix: Change test assertions for created by

packages/modules/auth/src/services/index.ts

@@ -1,2 +1,2 @@
 export { default as AuthModuleService } from "./auth-module"
-export { default as AuthUserService } from "./auth-user"
+export { default as AuthIdentityService } from "./auth-identity"