Add back some stripe checkout fields that are mildly beneficial

Author: jahooma

web/src/app/api/stripe/buy-credits/route.ts

@@ -185,6 +185,9 @@ export async function POST(req: NextRequest) {
         },
       ],
       mode: 'payment',
+      invoice_creation: { enabled: true }, 
+      tax_id_collection: { enabled: true },  // optional (EU B2B)
+      customer_update: { name: "auto", address: "auto" },
       success_url: `${env.NEXT_PUBLIC_CODEBUFF_APP_URL}/payment-success?session_id={CHECKOUT_SESSION_ID}&purchase=credits&amt=${credits}`,
       cancel_url: `${env.NEXT_PUBLIC_CODEBUFF_APP_URL}/usage?purchase_canceled=true`,
       metadata: {

web/src/app/api/stripe/create-subscription/route.ts

@@ -72,6 +72,8 @@ export async function POST(req: NextRequest) {
     const checkoutSession = await stripeServer.checkout.sessions.create({
       customer: user.stripe_customer_id,
       mode: 'subscription',
+      tax_id_collection: { enabled: true },  // optional (EU B2B)
+      customer_update: { name: "auto", address: "auto" },
       line_items: [{ price: priceId, quantity: 1 }],
       allow_promotion_codes: true,
       success_url: `${env.NEXT_PUBLIC_CODEBUFF_APP_URL}/profile?tab=usage&subscription_success=true`,