feat: Set chain-id in Intent

Author: blewater

pkg/modules/solution/solveintents.go

@@ -65,6 +65,21 @@ func (ei *IntentsHandler) bufferIntentOps(entrypoint common.Address, chainID *bi
 	}
 	for idx, op := range userOpBatch {
 		if op.HasIntent() {
+			intent, err := op.GetIntent()
+			if err != nil {
+				// invalid Intent: drop the UserOperation from the batch
+				continue
+			}
+
+			intent.ChainID = chainID
+
+			marshalledIntent, err := json.Marshal(intent)
+			if err != nil {
+				// corrupted intent: drop the UserOperation from the batch
+				continue
+			}
+			op.SetIntent(string(marshalledIntent))
+			
 			hashID := op.GetUserOpHash(entrypoint, chainID).String()
 
 			// Don't mutate the original op