swanadiva
6fd25e4d02
feat: Implement error handling framework (Task 4)
- Add AppError with error codes and hints system
- Implement ConnectionError for SSH-specific errors
- Add HandleSSHError for intelligent SSH error parsing
- Add FormatConnectionError for user-friendly output
- All 5 test functions passing (TestAppError, TestConnectionError,
TestHandleSSHError, TestHandleSSHErrorNil, TestFormatConnectionError)
- Update PROJECT_STATE.md to reflect Task 4 completion
Progress: Tasks 1-4 complete (~30%)