Apply standard Go formatting and update project documentation

- Run go fmt on all Go files to ensure consistent formatting
- Add official Go tooling commands to CLAUDE.md for code quality
- Update project status to reflect current implementation state

archiver/archiver.go

@@ -5,4 +5,4 @@ import "github.com/atomaka/collect/collector"
 // Archiver defines the interface for creating archives
 type Archiver interface {
 	Create(outputPath string, files []collector.FileEntry) error
-}
+}