- Streamlined the README.md for clarity and conciseness.
- Deleted outdated documentation files related to Freebit SIM management, SIM management API data flow, and various architectural guides to reduce clutter and improve maintainability.
- Updated the last modified date in the README to reflect the latest changes.
- Introduced WhmcsAccountDiscoveryService to streamline client account discovery processes.
- Expanded WhmcsCacheService to include caching for subscription invoices and client email mappings, improving data retrieval efficiency.
- Updated WhmcsClientService to utilize caching for client ID lookups by email, enhancing performance.
- Implemented new internet cancellation features in SubscriptionsController, allowing users to preview and submit cancellation requests for internet services.
- Added validation schemas for internet cancellation requests, ensuring data integrity and user guidance during the cancellation process.
- Refactored various components and services to integrate new cancellation functionalities, improving user experience and operational flow.
