{"message":"SofterSMS API is running!","version":"3.0.0","architecture":{"central_db":"PostgreSQL (Users, Chat, Companies, Access Requests)","company_dbs":"MySQL per company (ERP data — requires X-Company-ID header)"},"endpoints":{"auth":"/api/auth  (register, login, verify-otp, setup-password, refresh, logout, me)","companies":"/api/companies  (list, mine, search-user, request-access, approve, reject)","chat":"/api/chat  (threads, messages, users, media)","notifications":"/api/notifications","mobile":"/api/mobile  (version-check, fcm-token)","web":"/api/web  (company management, HR module — central PG)","erp_note":"All /api/sales, /api/purchase, /api/store etc. require X-Company-ID header"}}