- Add error checking for os.Setenv and io operations in test files
- Use anonymous functions in defer to ignore errors from os.Remove, os.Setenv, etc.
- Minor formatting and consistency fixes in tests and client code
- Add error checking for filepath.Walk and fmt.Scanln in agent.go
- Ignore MkdirAll error in chat.go, add checks in chat_test.go
- Add Scanln error handling in commit.go
- Capture and exit on completion generation errors in completion.go
- Add WriteFile error checks in edit_test.go
- Introduce tests for chat history file handling, loading/saving, and error cases in cmd/chat_test.go
- Add tests for removeLastModifiedComments in cmd/edit_helper_test.go
- Add comprehensive tests for CleanCodeResponse in internal/grok/cleancode_test.go
- Update Makefile to centralize build artifacts in build/ directory for coverage reports and binary
- Adjust .gitignore to ignore chat_history.json and remove obsolete coverage file entries
