Audit a Flutter application-layer file or folder against the project's documented Riverpod v3 notifier rules, async-mutation patterns, and cohesion/coupling rules — Flutter framework imports in application code, datasource bypass (skipping the repository facade), presentation imports, hard-wired repository construction instead of provider injection, god notifiers, redundant manual try/catch in notifiers, mutation methods returning values instead of Future<void>, and unconstrained provider state types.