fix: set baseURL for production deploy

lib/auth.ts

@@ -21,6 +21,7 @@ export type UserProfile = {
 export const auth = betterAuth({
   database: prismaAdapter(prisma, { provider: "postgresql" }),
   appName: config.app.title,
+  baseURL: config.app.baseURL,
   secret: config.auth.secret,
   email: {
     provider: "resend",

lib/config.ts

@@ -3,6 +3,7 @@ const config = {
     title: "TaxHacker",
     description: "Your personal AI accountant",
     version: process.env.npm_package_version || "0.0.1",
+    baseURL: process.env.BASE_URL || "http://localhost:" + process.env.PORT,
   },
   upload: {
     acceptedMimeTypes: "image/*,.pdf,.doc,.docx,.xls,.xlsx",