- Add class filter dropdown and class column to borrowings table
- Implement interactive client-side column sorting for tables
- Update backend route to resolve and map user class information
- Add repair resolution mechanism (`resolve_repaired_item`) allowing users to:
* Just repair: Return item to normal state (`Verfuegbar: True`)
* Replace: Update `Code_4` (inventory/barcode) and restore availability
* Delete: Remove item and update series counts (`SeriesCount`) and parent/child references
- Support `Code_4` updates in `update_item` for specific physical items
- Implement invoice correction route (`admin_add_invoice_correction`) with audit logging
- Add modal UI in library admin view to handle repair actions and code replacements
- Updated background colors across various templates to use CSS variables for better theming support.
- Replaced hardcoded colors with variables like `var(--ui-surface)` and `var(--ui-surface-soft)` for backgrounds.
- Adjusted text colors to use `var(--ui-text)` for improved readability and consistency.
- Enhanced the theme toggle functionality in the base template to dynamically change theme colors based on user preference.
- Ensured that all relevant templates reflect the new theming approach for a cohesive user experience.
- Introduced a new audit logging system that creates a tamper-evident chain of events in MongoDB.
- Added functions for appending audit events, ensuring index integrity, and verifying the audit chain.
- Implemented soft-delete functionality for inventory and borrowing records to comply with GoBD regulations.
- Added UI components for displaying invoice corrections and audit dashboard, including mismatch reporting.
- Created a CLI utility for verifying the integrity of the audit chain.
- Enhanced invoice management by preventing overwrites and allowing correction entries with reasons and optional deltas.