refactor(routing): externalize API path configuration for API gateway compatibility

fix(appointment): restrict duplicate appointment creation for same customer and service at same time slot

set start_from to start of current day in appoinement list

Sort appointments by start_time ASC to show earliest first

Sort appointments by start_time ASC to show earliest first

appointment list status filter

appointment list date filter

(appointments)-only list Active appointments

docs: add comprehensive documentation and optimize GET endpoints

perf(appointments,sales): optimize list queries with single JOIN and early pagination

fix(router): update user_id retrieval to use user_id attribute in appointment and customer endpoints

feat(logging): implement structured logging across services

refactor: Update COUNT queries to use COUNT(1) for consistency across the application

chore(appointments): Remove SQL initialization wrapper and consolidate startup logic

chore(appointments): Remove SQL initialization module

fix(appointments): Separate SQL trigger creation and improve statement organization

fix(appointments): Correct SQL trigger syntax and improve overlap detection logic

feat(appointments): Allow status filter as a list in list_appointments endpoint

feat(appointments): Add UUID to string conversion for list appointments endpoint

feat(appointments): Add projection support and request schema for list appointments endpoint

fix(appointments): Remove UUID conversion for merchant_id in appointment responses and services

refactor: Change merchant_id and service_id types from UUID to str for consistency across endpoints and schemas

feat: Enhance merchant_id handling by converting from string to UUID with fallback

feat: Update permission checks to use retail-specific roles for appointments, services, and staff

feat: Enhance appointment creation and listing with optional merchant_id handling

pos permissions

feat: Implement Appointment and Retail Sales APIs with PostgreSQL integration