refactor: mark fields as readonly #378
Merged
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This PR refactors several classes by marking fields that are only assigned once as
readonly. By making these fields immutable, we improve code safety, readability, and adherence to best practices.readonly: DeepSource flagged multiple fields—such asConfigurationRoot,parameters,domainEventHandlerResolver, various counters inSubscriptionRepository,featureTags, andfeatureInfo—that were only ever set during object construction. We added thereadonlymodifier to each of these, ensuring they cannot be reassigned after initialization and enhancing overall code immutability.