{"success":true,"message":"Welcome to the Dukaan ERP Auth, Profile, Catalog, Clients, Reports & Invoicing Billing Backend Server","version":"6.0.0","endpoints":{"auth":{"register":"POST /api/auth/register","sendOtp":"POST /api/auth/send-otp","verifyOtp":"POST /api/auth/verify-otp"},"profile":{"get":"GET /api/profile","updateBusiness":"POST /api/profile/business","branches":"GET, POST, PUT, DELETE /api/profile/branches(/:id)"},"catalog":{"categories":"GET, POST /api/catalog/categories","subcategories":"GET /api/catalog/subcategories(/:categoryId), POST /api/catalog/subcategories","products":"GET, POST, PUT, DELETE /api/catalog/products(/:id)"},"clients":{"search":"GET /api/clients (supports search=<name_or_phone>)"},"reports":{"financial":"GET /api/reports/financial (supports range=<preset>, startDate, endDate)","stockAlerts":"GET /api/reports/stock-alerts"},"bills":{"create":"POST /api/bills","list":"GET /api/bills","details":"GET /api/bills/:id","download":"GET /api/bills/:id/download"}}}