push_permission_flow 0.1.0

A predictable, testable notification permission flow for Dart and Flutter applications.

0.1.0

• Add framework-neutral push permission orchestration.
• Distinguish application deferral from operating-system denial.
• Resolve Android's ambiguous initial permission observation from durable history.
• Preserve uncertain request outcomes and require an explicit safe retry.
• Support provisional authorization, distinct state changes, and serialized operations.