- Update leads service to use 'leads' table
- Update extension models to use user_role_profile_id
- Update ProfessionalRepository to work with new schema
- Create TracecoinWalletRepository for wallet operations
- Update all handlers to use new model fields
- Rename Application fields (job_seeker_id -> applicant_user_id)
- Update cron tasks for new schema
- Fix compilation errors across all services