Add Krea2 variant evidence node

tools/prompt_smoke.py

@@ -6807,6 +6807,7 @@ def smoke_krea2_pose_variant_catalog_policy() -> None:
 def smoke_krea2_eval_log_policy() -> None:
     log = krea2_eval_log.load_eval_log()
     _expect(log.get("version") == 1, "Krea2 eval log version changed unexpectedly")
+    _expect("external ComfyUI artifacts" in str(log.get("artifact_policy") or ""), "Krea2 eval log should document external artifact policy")
     entries = krea2_eval_log.entries()
     _expect(entries, "Krea2 eval log has no entries")
     catalog_keys = set(krea2_pose_variant_catalog.variant_keys())
@@ -6833,7 +6834,7 @@ def smoke_krea2_eval_log_policy() -> None:
             image_path = str(entry.get(image_key) or "")
             if image_path:
                 _expect(Path(image_path).is_absolute(), f"{entry_id}.{image_key} should be absolute when present")
-                _expect(Path(image_path).is_file(), f"{entry_id}.{image_key} is missing: {image_path}")
+                _expect(Path(image_path).suffix.lower() == ".png", f"{entry_id}.{image_key} should reference a PNG artifact")
     boobjob_entries = krea2_eval_log.entries_for_variant("pov_boobjob_upright_cleavage", result="accepted")
     _expect(boobjob_entries and boobjob_entries[0].get("seed") == 7302, "Boobjob accepted eval evidence changed")
     mutation = krea2_eval_log.entries_for_variant("pov_handjob_upright_centered")[0]
@@ -8870,6 +8871,7 @@ def smoke_node_hardcore_position_registration() -> None:
         "SxCPHardcorePositionPool",
         "SxCPHardcoreActionFilter",
         "SxCPKrea2PoseVariant",
+        "SxCPKrea2VariantEvidence",
     ]
     for node_name in required_nodes:
         _expect(node_name in sxcp_nodes.NODE_CLASS_MAPPINGS, f"{node_name} missing from node registry")
@@ -8931,6 +8933,29 @@ def smoke_node_hardcore_position_registration() -> None:
     _expect("torso bent forward" in avoid_cues, "Krea2 Pose Variant lost avoid cues output")
     _expect("variant=pov_boobjob_upright_cleavage" in variant_summary, "Krea2 Pose Variant summary lost key")
 
+    evidence_node = sxcp_nodes.NODE_CLASS_MAPPINGS["SxCPKrea2VariantEvidence"]
+    evidence_inputs = evidence_node.INPUT_TYPES().get("required") or {}
+    _expect("variant_key" in evidence_inputs, "Krea2 Variant Evidence lost variant selector")
+    _expect("tooltip" in evidence_inputs["variant_key"][1], "Krea2 Variant Evidence tooltip injection missing")
+    (
+        evidence_summary,
+        baseline_image,
+        candidate_image,
+        evidence_json,
+        evidence_seed,
+        evidence_decision,
+    ) = evidence_node().build(
+        "pov_boobjob_upright_cleavage",
+        "accepted",
+        "",
+    )
+    parsed_evidence = json.loads(evidence_json)
+    _expect(evidence_seed == 7302, "Krea2 Variant Evidence returned wrong fixed seed")
+    _expect(evidence_decision == "generator_patch", "Krea2 Variant Evidence returned wrong decision")
+    _expect("boobjob-7302" in evidence_summary, "Krea2 Variant Evidence summary lost entry id")
+    _expect(baseline_image.endswith(".png") and candidate_image.endswith(".png"), "Krea2 Variant Evidence lost image paths")
+    _expect(parsed_evidence.get("variant_key") == "pov_boobjob_upright_cleavage", "Krea2 Variant Evidence returned wrong JSON")
+
 
 def smoke_node_formatter_registration() -> None:
     required_nodes = [