[Wave 6: Tags] CRITICAL: Backend updates to enable creating a money request with a tag and billable value

[amyevans]

Update the following to accept tag and billable parameters:

• CreateIOUTransaction Auth command
• RequestMoney API command
• CreateDistanceRequest Auth command
• CreateDistanceRequest API command

Implementation tracking

tag param:

• https://github.com/Expensify/Auth/pull/8714
• https://github.com/Expensify/Web-Expensify/pull/38894
• Update Transaction with new field definitions #27674

billable param:

• https://github.com/Expensify/Auth/pull/8748
• https://github.com/Expensify/Web-Expensify/pull/38929
• Add billable field to Transaction #27910

[amyevans]

PRs up for tag param, I'll handle billable in separate PRs