updated the interface to return a Error struct and modified the function and tests accordingly

shared/plugin/definition/validator.go

@@ -5,12 +5,18 @@ import (
 	"net/url"
 )
 
+// Error struct for validation errors
+type Error struct {
+	Path    string
+	Message string
+}
+
 // Validator interface for schema validation
 type Validator interface {
-	Validate(ctx context.Context, url url.URL, payload []byte) (bool, error)
+	Validate(ctx context.Context, url *url.URL, payload []byte) (bool, Error)
 }
 
 // ValidatorProvider interface for creating validators
 type ValidatorProvider interface {
-	New(ctx context.Context, config map[string]string) (map[string]Validator, error)
+	New(ctx context.Context, config map[string]string) (map[string]Validator, Error)
 }