- Introduced CostCenter and related models for managing print costs and budgets.
- Updated PrintArchive and PrintQueueItem models to include cost_center_id and estimated_cost.
- Implemented budget reservation logic in finance services to validate and manage print costs.
- Enhanced ArchiveService and BackgroundDispatchService to handle cost center information during print jobs.
- Added wallet transaction handling for print charges, including partial charges based on filament usage.
- Created finance billing and budget services to manage user wallets and budget reservations.
- Ensured user finance defaults are created upon user registration, including wallets and private cost centers.
- Updated print scheduler to validate budget before processing print jobs.
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