- Updated validation rules for 'custom_user' and 'custom_port' fields to be nullable in the GithubController.
- Refactored API request handling in GithubController, GithubPrivateRepository, and helper functions to use a consistent Http::GitHub method with timeout and retry logic.
- Improved error handling for repository and branch loading processes.
- Introduced `ValidGitRepositoryUrl` and `ValidGitBranch` validation rules to ensure safe and valid input for Git repository URLs and branch names.
- Updated relevant Livewire components and API controllers to utilize the new validation rules, enhancing security against command injection and invalid inputs.
- Refactored existing validation logic to improve consistency and maintainability across the application.
