fix: create fs_user on sign-in, fix projects fetch

Made-with: Cursor

lib/auth/authOptions.ts

@@ -2,6 +2,7 @@ import { NextAuthOptions } from "next-auth";
 import GoogleProvider from "next-auth/providers/google";
 import { PrismaAdapter } from "@next-auth/prisma-adapter";
 import { PrismaClient } from "@prisma/client";
+import { query } from "@/lib/db-postgres";
 
 const prisma = new PrismaClient();
 
@@ -24,6 +25,23 @@ export const authOptions: NextAuthOptions = {
       }
       return session;
     },
+    async signIn({ user }) {
+      if (!user?.email) return true;
+      try {
+        const workspace = user.email.split("@")[0].toLowerCase().replace(/[^a-z0-9]+/g, "-") + "-account";
+        await query(`
+          INSERT INTO fs_users (id, user_id, data)
+          VALUES (gen_random_uuid()::text, $1, $2::jsonb)
+          ON CONFLICT ((data->>'email')) DO UPDATE
+            SET user_id = EXCLUDED.user_id,
+                data = fs_users.data || EXCLUDED.data,
+                updated_at = NOW()
+        `, [user.id, JSON.stringify({ email: user.email, name: user.name, image: user.image, workspace })]);
+      } catch (e) {
+        console.error("[signIn] Failed to upsert fs_user:", e);
+      }
+      return true;
+    },
   },
   session: {
     strategy: "database",