* add 2025 sales bulk upload parser
* lint and fix typos
* fix typos, field numbers, staircasing tests
* order field_11 values
* test log creator selects correct year's parser
* fix log to csv helper field order
* update factory so test file fully succeeds
* add 2025 BU test file method
* apply new csv syntax
* lint
* lint
* CLDC-3893 update property information field order
* commonise prepare your file page
* also update prep file page for lettings
* CLDC-3893 update test
* lint
* don't error on blank discount if not RTB
---------
Co-authored-by: Carolyn <carolyn.barker@softwire.com>
carolynbarker