Add reviewer, artifact store, and paginated queries

tests/unit/test_reviewer.py

@@ -0,0 +1,29 @@
+from ai_orchestrator.application.services.execution import StructuredReviewer
+from ai_orchestrator.domain.enums import NodeType
+from ai_orchestrator.domain.models import ExecutionNode, Task
+
+
+def test_structured_reviewer_accepts_valid_output() -> None:
+    reviewer = StructuredReviewer()
+    task = Task(project_id="default", goal="Review", inputs={})
+    node = ExecutionNode(task_id=task.task_id, node_type=NodeType.PLANNER, input_data={})
+
+    reviewed = reviewer.review(
+        task=task,
+        node=node,
+        output_data={"status": "planned", "goal": "Review"},
+    )
+
+    assert reviewed["review"]["status"] == "accepted"
+    assert reviewed["task_id"] == task.task_id
+
+
+def test_structured_reviewer_marks_missing_status_as_review_failed() -> None:
+    reviewer = StructuredReviewer()
+    task = Task(project_id="default", goal="Review", inputs={})
+    node = ExecutionNode(task_id=task.task_id, node_type=NodeType.PLANNER, input_data={})
+
+    reviewed = reviewer.review(task=task, node=node, output_data={"goal": "Review"})
+
+    assert reviewed["status"] == "review_failed"
+    assert reviewed["review"]["status"] == "rejected"