- Added a new API endpoint to set a user passcode with validation.
- Created SetPasscodeDTO for passcode input validation.
- Implemented setUserPasscode method in UserService to handle passcode setting.
- Updated user.yml to include the new set-passcode endpoint.
- Created setPasscodeForMobile handler to manage the passcode setting logic.
- Removed unused test-stepper-handler.ts file.
- Deleted Dockerfile, docker-compose.yml, init.sql, and serverless.yml.backup files as part of cleanup.
