Add dataset bench and validation agents

backend/tests/test_agents.py

@@ -0,0 +1,14 @@
+from app.agents.evaluation_agent import evaluate_project
+from app.agents.validation_agent import validate_project
+
+
+def test_evaluation_agent_returns_checks():
+    result = evaluate_project()
+    assert result["agent"] == "evaluation_suggestion_agent"
+    assert result["checks"]
+
+
+def test_validation_agent_lightweight():
+    result = validate_project(run_build=False)
+    assert result["agent"] == "validation_agent"
+    assert any(item["name"] == "catalog_has_yolo_heatmap" for item in result["checks"])