## Summary
- Remove the `IS_APPLICATION_ENABLED` feature flag — application
features are now always enabled
- Remove `@RequireFeatureFlag` decorators and `FeatureFlagGuard` from 7
application resolvers (registration, development, manifest, install,
upgrade, marketplace, oauth)
- Remove frontend feature flag checks: settings navigation visibility,
route protection wrapper, side panel widget type gating, and role
permission flag filtering
- Delete the integration test for disabled-flag behavior
- Clean up seed data, test mocks, and generated schema files