📝 docs: add ADR for staged-only Git hooks formatting

- Add ADR-0012 documenting the decision to format only staged Go files
- Update ADR README.md with new entry
- Document rationale, alternatives, and verification results
- Include future considerations for monitoring and CI/CD integration

Generated by Mistral Vibe.
Co-Authored-By: Mistral Vibe <vibe@mistral.ai>

pkg/validation/validator.go

@@ -8,9 +8,9 @@ import (
 	"strings"
 
 	"github.com/go-playground/locales/en"
-	en_translations "github.com/go-playground/validator/v10/translations/en"
-	"github.com/go-playground/validator/v10"
 	ut "github.com/go-playground/universal-translator"
+	"github.com/go-playground/validator/v10"
+	en_translations "github.com/go-playground/validator/v10/translations/en"
 )
 
 // Validator wraps the go-playground/validator with custom error handling
@@ -82,7 +82,7 @@ func (v *Validator) formatValidationErrors(errors validator.ValidationErrors) er
 
 		// Get custom error message
 		message := fmt.Errorf("%s failed validation for '%s'", field, tag).Error()
-		
+
 		// Add parameter if available
 		if param != "" {
 			message += fmt.Sprintf(" (parameter: %s)", param)
@@ -120,4 +120,4 @@ func GetValidatorFromConfig(cfg *config.Config) (*Validator, error) {
 	// For now, config doesn't affect validator creation
 	// But this allows future configuration (e.g., language, strict mode)
 	return NewValidator()
-}
+}