appointment new changes based on new table format

appointment api changes

fix(appointment): handle serialization of time objects in appointment data

fix(database): ensure required fields are accessed directly in appointment serialization

fix(database): handle None check explicitly in appointment_date serialization

feat(performance): add db operation monitoring to payment and appointment repos

feat(logging): add centralized logger setup utility

refactor(logging): replace direct logger initialization with setup_logger

feat: add authentication, security middleware, and optimize JSON handling

cache implementation

date fix

Remove compiled Python bytecode files from the repository

appointments

major changes

cart in redis

redis cart feature