refactor: extract shared Texts, Jsons, and SqlBindings helpers

Co-authored-by: Cursor <cursoragent@cursor.com>

ordo-core/src/main/java/com/jetlumen/ordo/core/DefaultOrdoEngine.java

@@ -53,6 +53,7 @@ import java.util.Optional;
 import java.util.UUID;
 import java.util.concurrent.atomic.AtomicLong;
 
+import static com.jetlumen.ordo.api.Texts.requireText;
 
 /**
  * Repository-backed implementation of the approval runtime with explicit step transitions.
@@ -653,12 +654,6 @@ public final class DefaultOrdoEngine implements OrdoEngine {
         return UUID.randomUUID().toString();
     }
 
-    private static void requireText(String value, String name) {
-        if (value == null || value.isBlank()) {
-            throw new IllegalArgumentException(name + " must not be blank");
-        }
-    }
-
     private record PendingAction(String executionId, String actionKey, String instanceId, String stepId,
                                  ProcessContext context) {
     }