fix: resolve NextAuth TypeScript compilation errors and Cerbos Hub config

- Fix NextAuth v5 import syntax and configuration typing
- Correct .cerbos-hub.yaml format removing invalid 'source' field
- Use proper NextAuthConfig type import pattern
- Enable successful TypeScript compilation for admin-portal

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: jonphipps

.cerbos-hub.yaml

@@ -2,12 +2,7 @@
 # This connects the repository to Cerbos Hub for GitOps policy management
 ---
 apiVersion: api.cerbos.cloud/v1
-source:
-  driver: git
-  git:
-    protocol: https
-    repository: github.com/iflastandards/standards-dev
-    directory: cerbos/policies  # Policies are stored in cerbos/policies/
+workDir: cerbos/policies
 labels:
   latest:         # 'latest' label pointing to the HEAD of the main branch
     branch: main

apps/admin-portal/src/app/lib/auth.ts

@@ -1,5 +1,6 @@
-import NextAuth, { NextAuthConfig } from "next-auth"
+import NextAuth from "next-auth"
 import GitHub from "next-auth/providers/github"
+import type { NextAuthConfig } from "next-auth"
 
 const authOptions: NextAuthConfig = {
   debug: process.env.NODE_ENV === "development",
@@ -121,6 +122,4 @@ const authOptions: NextAuthConfig = {
   },
 };
 
-const nextAuth = NextAuth(authOptions);
-
-export const { handlers, auth, signIn, signOut } = nextAuth;
+export const { handlers, auth, signIn, signOut } = NextAuth(authOptions);