refactor(sql): reduce connection pool size and remove PostgreSQL optimizations

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

feat(catalogue_service): implement audit trail with username tracking in service CRUD operations

feat: Enhance audit trail with created_by and updated_by fields across services

refactor(staff): remove unused Designation import from staff service

refactor(staff): remove designation enum and disable hierarchy validation

feat(catalogue_service): extract and pass pricing fields to service creation

(catalogue_service)-added price, gst_rate, and currency fields inside the pricing and

removed user_id from response

implemented get api for eligible bill items

changed schema based on UI

(staff):validation for email and phonenumber

sync staff and system user IDs

implemented get api for eligible bill

add user_id in staff

feat(wallet): implement staff wallet management system with ledger architecture

Add system user model, schemas, and service for staff synchronization

staff wallet

(customer):added validation for email

(customer):added validation for email

(customer):added validation for email

(retail)-mark appointment completed and delete draft sale using sql stored function

Add sale_code and bill_reference in get_sale()

(staff)-Added convert_objectid_to_str utility for BSON serialization

retail-implemented sale code generation, in create sale api

set start_from to start of current day in appoinement list

staff- StaffListRequest to use filters

Remove "is_deleted": {"$ne": True} condition from list_staff .to allow listing of all staff including soft-deleted records

(retail)-fetch staff names from Id in sales

(retail):removed staff_name from schema

removed default as active in staff list

Default list_staff to return only active staff

(staff):added default value for status

Add duplicate name validation in create_staff and update_staff

changed staff_id to uuid

added staff_name field in the schema

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 for create sale response fix

docs: add bill reference validation fix and comprehensive documentation

docs: add comprehensive documentation and optimize GET endpoints

feat(sales): expand SaleResponse schema with complete sale details

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

feat(sale): add bill reference generation and update SaleResponse schema

feat(sale): enhance create_sale to return full sale object and add bill reference generation

fix(nosql): handle optional MongoDB URI configuration and skip connection if not set

fix(sales): resolve IndentationError in service.py and restore all functionality