production runtime and mock removal

lib/server/billing-service.ts

@@ -50,7 +50,7 @@ export type BillingGenerationInput = {
 };
 
 export async function quoteGenerationCharge(input: BillingGenerationInput): Promise<BillingJobCharge | undefined> {
-  if (!billingEnabled() || input.provider === "mock") return undefined;
+  if (!billingEnabled()) return undefined;
   const quotaExempt = isQuotaExemptUsageContext(input.usageContext);
   if (!input.usageContext?.organizationId && !quotaExempt) {
     if (input.externalClientId || input.usageContext?.source === "api") return undefined;