Found by dogfooding on nuwayze: `pipe check` reported
_AgentHubController is consumed in the UI but 8 of its public
member(s) are read by name nowhere outside the class ...
for a private ChangeNotifier whose widget, declared in the same file
(lib/screens/settings/agent_hub_screen.dart), renders every one of
those getters (`controller.authorizations`, `controller.hasLoadError`,
...).
The rule claims "outside the class" but discounted the notifier's
whole file: member reads were collected per file and the file that
declares the notifier was skipped. A private controller can only be
rendered from its own library, so that exclusion hid exactly the reads
that matter.
Member reads are now kept per scope: reads inside a ChangeNotifier
class body go under `memberUseScope(file, Class)`, everything else
under the file. The rule discounts only the notifier's own scope, so a
widget in the same file, or in a `part` of the library, counts as a
reader, while a notifier reading itself (`this.x`, `other.x`) still
does not. The model JSON keeps its shape (a map of name sets); only
the keys gained the class scope.
Tests (test/field_unread_scope_test.dart, a generated project): a
same-file widget read and a part-file read are not reported; a member
read nowhere and a member read only inside its own class are.
On nuwayze-w3 the finding is gone and nothing else moves: 65 findings
with the current release, 64 with this change, the only difference
being _AgentHubController. 221 tests pass.
