feat: integrate authentication and password management features, including bcrypt for hashing and NextAuth for session handling

lib/auth-utils.ts

@@ -0,0 +1,21 @@
+import { getServerSession } from "next-auth";
+import { authOptions } from "@/lib/auth";
+import { NextResponse } from "next/server";
+
+/**
+ * Verify that the user is authenticated
+ * Returns null if authenticated, or a NextResponse with 401 if not
+ */
+export async function requireAuth(): Promise<NextResponse | null> {
+  const session = await getServerSession(authOptions);
+  
+  if (!session) {
+    return NextResponse.json(
+      { error: "Non authentifié" },
+      { status: 401 }
+    );
+  }
+  
+  return null;
+}
+