- Renamed customs-related schemas in line_items to LineCustomCreate, LineCustomUpdate, and LineCustomResponse.
- Adjusted models to streamline invoice_id mapping in Item model.
- Enhanced item routes to include company_id in summary statistics endpoint.
- Refactored ItemService to improve item creation and update logic, removing redundant methods.
- Updated frontend components for item management, including new item creation and editing functionalities.
- Added API client for items with CRUD operations and improved error handling.
- 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.
