E2E: remove Clerk bypass and sign in via Clerk in Cypress

frontend/src/auth/clerk.tsx

@@ -1,10 +1,10 @@
 "use client";
 
-import type { ReactNode } from "react";
-
 // NOTE: We intentionally keep this file very small and dependency-free.
 // It provides CI/secretless-build safe fallbacks for Clerk hooks/components.
 
+import type { ReactNode, ComponentProps } from "react";
+
 import {
   ClerkProvider,
   SignedIn as ClerkSignedIn,
@@ -15,8 +15,6 @@ import {
   useUser as clerkUseUser,
 } from "@clerk/nextjs";
 
-import type { ComponentProps } from "react";
-
 import { isLikelyValidClerkPublishableKey } from "@/auth/clerkKey";
 
 export function isClerkEnabled(): boolean {