refactor: remove CrashReporter and related logging components

- Removed CrashReporter interface and its implementation, SentryCrashReporter.
- Deleted log buffering functionality and associated LogBuffer class.
- Updated LoggerAppLogger to eliminate dependencies on removed components.
- Simplified logging structure to focus on AppLogger and sensitive data scrubbing.
- Adjusted AppEnv to remove Sentry-related configurations.
- Refactored tests to align with the new logging architecture.

packages/core_auth/test/core_auth_test.dart

@@ -91,7 +91,6 @@ void main() {
           flavor: AppFlavor.dev,
           apiBaseUrl: 'https://example.test',
           enableLog: false,
-          sentryDsn: '',
           h5AllowedHosts: <String>{},
         ),
       );