research: publish AttnRes forward training study

experiments/k3/attnres_forward/analyze.py

@@ -425,6 +425,19 @@ def main() -> None:
                 == environment_metadata(references[seed])
             ),
         }
+    metadata_warnings = [
+        {
+            "cell": cell,
+            "message": (
+                "GPU/version metadata differs from the historical paired "
+                "reference; frozen scientific-environment fields still match"
+            ),
+            "run_environment": item["run_environment"],
+            "reference_environment": item["reference_environment"],
+        }
+        for cell, item in pairing.items()
+        if not item["metadata_equal"]
+    ]
 
     replay = read_result(args.replay, PROTOCOL_ID)
     replay_contract = manifest["replay"]
@@ -593,6 +606,7 @@ def main() -> None:
         "thresholds": manifest["thresholds"],
         "input_files": input_files,
         "historical_pairing": pairing,
+        "metadata_warnings": metadata_warnings,
         "replay": {
             "passed": replay_exact,
             "scientific_payload_sha256": canonical_sha256(formal_payload),
@@ -636,6 +650,7 @@ def main() -> None:
         "trajectories": trajectories,
         "final_spectra": final_spectra,
         "replay": aggregate["replay"],
+        "metadata_warnings": metadata_warnings,
         "processed_target_bytes": manifest["new_target_bytes"],
         "reporting_boundary": aggregate["reporting_boundary"],
         "aggregate_sha256": aggregate["canonical_sha256_without_self"],