* chore: [PM-33473] remove pm-29594-update-individual-subscription-page feature flag
* chore: dotnet format — add UTF-8 BOM to new response model files
* Remove pm-23341-milestone-2 flag from UpcomingInvoiceHandler.HandleForUserAsync
Always call AlignPremiumUsersSubscriptionConcernsAsync instead of gating
it behind the feature flag.
* Remove pm-23341-milestone-2 flag from AccountsController and SubscriptionResponseModel
Remove includeMilestone2Discount parameter from both SubscriptionResponseModel
constructors. Rename ShouldIncludeMilestone2Discount to ShouldIncludeDiscount
and always evaluate the discount (coupon ID match + active check).
* Update AccountsControllerTests after pm-23341-milestone-2 removal
Remove feature flag mock setup lines and delete test methods that
verified flag-disabled behavior. Rename tests to remove flag references.
* Update SubscriptionResponseModelTests after pm-23341-milestone-2 removal
Remove includeMilestone2Discount parameter from all constructor calls.
Delete tests that verified flag-disabled behavior.
* Update UpcomingInvoiceHandlerTests after pm-23341-milestone-2 removal
Remove all feature flag mock setup lines for PM23341_Milestone_2.
* Remove IFeatureService from AccountsController constructor and tests
The constructor parameter became unused after removing the flag check.
* Add default ListPremiumPlans mock for UpcomingInvoiceHandler tests
After removing the m2 flag guard, AlignPremiumUsersSubscriptionConcernsAsync
is always called and needs ListPremiumPlans to return a non-null value.
Add a default empty list in the test constructor setup.
* The discount badge implementation
* Address the claude pr comments
* Add more unit testing
* Add more test
* used existing flag
* Add the coupon Ids
* Add more code documentation
* Add some recommendation from claude
* Fix addition comments and prs
* Add more integration test
* Fix some comment and add more test
* rename the test methods
* Add more unit test and comments
* Resolve the null issues
* Add more test
* reword the comments
* Rename Variable
* Some code refactoring
* Change the coupon ID to milestone-2c
* Fix the failing Test
