self hosted saas3 ai receptionist1 appointment booking1 billing module1 call answering1 crm1 crm integration1 customer rewards1 digital loyalty card1 gift card1 laravel saas1 laravel script1 lead capture1 loyalty program1 mcp integration1 membership card1 merchant portal1 multi business1 multi tenancy1 multi tenant pos1 nodejs1 openai realtime1 outbound calling1 php saas script1 pos saas1 pwa app1 reseller platform1 retention marketing1 reward loyalty1 saas addon1