fix

src/auth.ts

@@ -117,11 +117,13 @@ export const { handlers, signIn, signOut, auth } = NextAuth({
           // Read role and agent type from cookies (set by signup page before OAuth redirect)
           let role: string | undefined;
           let agentTypeId: string | undefined;
+          let mode: string | undefined;
           try {
             const { cookies } = await import("next/headers");
             const cookieStore = await cookies();
             role = cookieStore.get("socialAuthRole")?.value;
             agentTypeId = cookieStore.get("socialAuthAgentTypeId")?.value;
+            mode = cookieStore.get("socialAuthMode")?.value;
           } catch {
             // Cookie may not be available
           }
@@ -139,6 +141,7 @@ export const { handlers, signIn, signOut, auth } = NextAuth({
                 avatar: user.image,
                 role,
                 agentTypeId,
+                mode: mode || 'signup',
               }),
             }
           );
@@ -150,6 +153,9 @@ export const { handlers, signIn, signOut, auth } = NextAuth({
             (user as any).role = data.data.user.role;
             (user as any).accessToken = data.data.accessToken;
             (user as any).refreshToken = data.data.refreshToken;
+          } else if (!res.ok) {
+            const errorMsg = data?.message || "Social login failed";
+            return `/login?error=${encodeURIComponent(errorMsg)}`;
           }
         } catch (error) {
           console.error("Social auth sync error:", error);