chore: Clean up unused functions for v3.0.0 release

Author: UPwith-me

cmd/cm/ai_debug.go

@@ -520,11 +520,3 @@ func applyFix(fix FixSuggestion) error {
 
 	return nil
 }
-
-// _truncateStr truncates a string to max length (kept for potential future use)
-func _truncateStr(s string, max int) string {
-	if len(s) <= max {
-		return s
-	}
-	return s[:max-3] + "..."
-}

cmd/cm/clone.go

@@ -241,8 +241,3 @@ func autoCreateConfig(projectDir string) error {
 
 	return template.ApplyTemplate(templateName, projectDir)
 }
-
-func _fileExists(path string) bool {
-	_, err := os.Stat(path)
-	return err == nil
-}