- Added detailed instructions for Plesk deployment in `.env.plesk` and `compose-plesk.yaml`.
- Updated `.gitignore` to exclude Docker-related files.
- Enhanced Dockerfiles for both frontend and backend to optimize for Plesk deployment.
- Refined TypeScript configurations across various files for improved module resolution and compatibility.
- Removed obsolete logger fixes summary file to streamline documentation.
- Introduced `validateSignup` endpoint in AuthController for customer number validation during signup.
- Added `healthCheck` method in AuthService to verify service integrations and database connectivity.
- Implemented `getPaymentMethods`, `getPaymentGateways`, and `refreshPaymentMethods` endpoints in InvoicesController for managing user payment options.
- Enhanced InvoicesService with methods to invalidate payment methods cache and improved error handling.
- Updated currency handling across various services and components to reflect JPY as the default currency.
- Added new dependencies in package.json for ESLint configuration.
