* feat: update bridge to expose KeyPackageStatus enum (#308)
Update whitenoise-rs to bd18293 and mdk-core to v0.6.0. Change
user_has_key_package return type from bool to KeyPackageStatus
(Valid/NotFound/Incompatible) and regenerate FRB bindings.
* fix: migrate Flutter code from bool to KeyPackageStatus
Update hook, screens, mocks, and tests to use the new
KeyPackageStatus enum instead of bool for key package checks.