Add env variables & auth.js

src/auth.ts

@@ -0,0 +1,12 @@
+import NextAuth from "next-auth"
+import Entra from "next-auth/providers/microsoft-entra-id"
+ 
+export const { handlers, auth, signIn, signOut } = NextAuth({
+  providers: [
+    Entra({
+      clientId: process.env.AUTH_MICROSOFT_ENTRA_ID_ID,
+      clientSecret: process.env.AUTH_MICROSOFT_ENTRA_ID_SECRET,
+      tenantId: process.env.AUTH_MICROSOFT_ENTRA_ID_TENANT_ID,
+    }),
+  ],
+})