* Remove stale 1.0 import logic and model
* Fresh start
* Checkpoint before removing nav
* First working prototype
* Add trade, account, and mint import flows
* Basic working version with tests
* System tests for each import type
* Clean up mappings flow
* Clean up PR, refactor stale code, tests
* Add back row validations
* Row validations
* Fix import job test
* Fix import navigation
* Fix mint import configuration form
* Currency preset for new accounts
Introduces a basic CSV import module for bulk-importing account transactions.
Changes include:
- User can load a CSV
- User can configure the column mappings for a CSV
- Imported CSV shows invalid cells
- User can clean up their data directly in the UI
- User can see a preview of the import rows and confirm import
- Layout refactor + Import nav stepper
- System test stability improvements
