.

config/errors.go

@@ -2,27 +2,13 @@ package config
 
 import "fmt"
 
-// ConfigError represents a configuration error
-type ConfigError struct {
-	Param string
-	Err   error
-}
-
-func (e *ConfigError) Error() string {
-	return fmt.Sprintf("configuration error for %s: %v", e.Param, e.Err)
-}
-
-func (e *ConfigError) Unwrap() error {
-	return e.Err
-}
-
-// ValidationError represents a validation error
+// ValidationError represents a config validation error
 type ValidationError struct {
 	Param  string
 	Value  string
 	Reason string
 }
 
-func (e *ValidationError) Error() string {
+func (e ValidationError) Error() string {
 	return fmt.Sprintf("invalid value '%s' for %s: %s", e.Value, e.Param, e.Reason)
 }