build(agent): new-agents-4#58ba63 iteration

arbsphere/coordinator.py

@@ -1,4 +1,5 @@
 import hashlib
+import time
 from typing import List
 from dataclasses import dataclass
 
@@ -10,6 +11,10 @@ class PlanDelta:
     legs: List[dict]
     total_size: float
     delta_id: str
+    # Additional provenance fields to support deterministic replay and auditing
+    timestamp: float | None = None
+    parent_delta_id: str | None = None
+    signature: str | None = None
 
 
 def _deterministic_id(inputs: List[LocalArbProblem], shared: SharedSignals) -> str:
@@ -37,4 +42,12 @@ def admm_lite_step(local_problems: List[LocalArbProblem], shared_signals: Shared
 
     total_size = float(sum(lp.liquidity_budget for lp in local_problems)) * 0.01 if local_problems else 0.0
     delta_id = _deterministic_id(local_problems, shared_signals)
-    return PlanDelta(legs=legs, total_size=total_size, delta_id=delta_id)
+    # Attach provenance metadata for replay and auditing
+    return PlanDelta(
+        legs=legs,
+        total_size=total_size,
+        delta_id=delta_id,
+        timestamp=time.time(),
+        parent_delta_id=None,
+        signature=None,
+    )

arbsphere/energi_bridge.py

@@ -42,7 +42,7 @@ class EnergiBridge:
             "delta_id": delta.delta_id,
             # Extended provenance fields for deterministic replay and auditing
             "timestamp": getattr(delta, "timestamp", None),
-            "parent_delta_id": getattr(delta, "parent_id", None),
+            "parent_delta_id": getattr(delta, "parent_delta_id", None),
             "signature": getattr(delta, "signature", None),
         }