tool: migrate v1 deploy_test/eval_curve -> v2 field names (for mid-flight runs)

Co-Authored-By: Claudypoo <288921227+claudypoo@users.noreply.github.com>

scripts/migrate_deploy_v1_to_v2.py

@@ -0,0 +1,41 @@
+"""Lift v1 deploy_test.json + eval_curve.jsonl to v2 field names (deployed/as_trained).
+
+For runs whose process launched before the rename commit (e.g. the eval3 baseline
+that was mid-flight). Run after the job finishes:
+    uv run python scripts/migrate_deploy_v1_to_v2.py out/runs/<run_dir> [<run_dir> ...]
+"""
+from __future__ import annotations
+
+import json
+import sys
+from pathlib import Path
+
+RENAME = {
+    "deploy_hack": "hack_deployed", "deploy_solve": "solve_deployed", "deploy_vhack": "vhack_deployed",
+    "deploy_hack_on": "hack_as_trained", "deploy_solve_on": "solve_as_trained", "deploy_vhack_on": "vhack_as_trained",
+    "train_hack": "hack_as_trained", "train_solve": "solve_as_trained", "train_vhack": "vhack_as_trained",
+}
+
+
+def _rename(d: dict) -> dict:
+    return {RENAME.get(k, k): v for k, v in d.items()}
+
+
+def migrate(run_dir: Path) -> None:
+    deploy = run_dir / "deploy_test.json"
+    rec = json.loads(deploy.read_text())
+    if rec.get("schema") == "paired_final_v2":
+        print(f"{run_dir.name}: already v2, skip")
+        return
+    rec = _rename(rec) | {"schema": "paired_final_v2"}
+    deploy.write_text(json.dumps(rec, indent=2))
+    curve = run_dir / "eval_curve.jsonl"
+    if curve.exists():
+        lines = [json.dumps(_rename(json.loads(l))) for l in curve.read_text().splitlines() if l.strip()]
+        curve.write_text("\n".join(lines) + "\n")
+    print(f"{run_dir.name}: migrated -> v2")
+
+
+if __name__ == "__main__":
+    for arg in sys.argv[1:]:
+        migrate(Path(arg))