- Consolidated item creation and update validation into a common function to reduce code duplication.
- Updated the `validate_create` and `validate_update` functions to utilize the new common validation logic.
- Introduced a new `common_validators.py` file for shared validation functions.
- Added a new `fractions.py` file to handle fraction-related logic and searches.
- Enhanced the `LineCustom` model to use an enumeration for `fraction_type`.
- Improved the `ItemService` class with methods for locking invoices and renumbering line items.
- Updated the `Sector` model to use a boolean type for the `authorized` field.
- Fixed import issues in the router by replacing the old `a24_router` with `sitar_router`.
- Added new schemas for FA line items in the backend, including creation, update, and response DTOs.
- Updated existing line item schemas to include FA data.
- Modified database models to reflect new table names for line quantities and references.
- Enhanced ItemService to handle FA data during item creation and updates.
- Introduced new routes and service layer for FA line items, including CRUD operations.
- Updated frontend components to support FA line item data, including new fields and UI adjustments.
- Implemented data flattening for improved item display in the dashboard.
- Implemented the items tab form in Svelte for editing invoices, displaying item quantities and import values.
- Created saveInvoice function to handle both creation and updating of invoices, including validation of required fields and building a unified payload for API requests.
- Added support for compliance, financials, and logistics data in the invoice payload.
