feat: add local auth billing and usage management

lib/server/auth/oauth.ts

@@ -92,7 +92,8 @@ export async function completeAuthorizationCallback(request: Request): Promise<N
   const claims = await verifyAuthJwt(token.access_token, config);
   const session = createSessionFromClaims(claims, config, token.expires_in, {
     accessToken: token.access_token,
-    tokenType: token.token_type
+    tokenType: token.token_type,
+    authMode: "user"
   });
   const response = NextResponse.redirect(new URL(stateCookie.next, request.url));
   setSessionCookieValue(