feat: Pass user role and agent type via cookies for social sign-up and include them in the social authentication API request.

src/auth.ts

@@ -114,6 +114,18 @@ export const { handlers, signIn, signOut, auth } = NextAuth({
       // For OAuth providers, sync with backend
       if (account?.provider === "google" || account?.provider === "facebook" || account?.provider === "twitter") {
         try {
+          // Read role and agent type from cookies (set by signup page before OAuth redirect)
+          let role: string | undefined;
+          let agentTypeId: string | undefined;
+          try {
+            const { cookies } = await import("next/headers");
+            const cookieStore = await cookies();
+            role = cookieStore.get("socialAuthRole")?.value;
+            agentTypeId = cookieStore.get("socialAuthAgentTypeId")?.value;
+          } catch {
+            // Cookie may not be available
+          }
+
           const res = await fetch(
             `${process.env.NEXT_PUBLIC_API_URL}/auth/social`,
             {
@@ -125,6 +137,8 @@ export const { handlers, signIn, signOut, auth } = NextAuth({
                 email: user.email,
                 name: user.name,
                 avatar: user.image,
+                role,
+                agentTypeId,
               }),
             }
           );