feat(agentcompat): add scoped IO stream capabilities

Co-authored-by: naiba/CloudCode <hi+cloudcode@nai.ba>

service/rpc/receipt_gate_default.go

@@ -0,0 +1,19 @@
+//go:build !agentcompat
+
+package rpc
+
+import "net"
+
+func SetReceiptGateListener(net.Listener) {}
+
+func CloseReceiptGate() {}
+
+func notifyReceiptAccepted(uint64, string, uint64, uint64) error { return nil }
+
+func notifyStateReceived(uint64, string, uint64, uint64) error { return nil }
+
+func notifyInfo2(uint64, string) error { return nil }
+
+func notifyMCPTaskDispatched(uint64, uint64, uint64) {}
+
+func notifyMCPTaskResultAccepted(uint64, uint64, uint64) {}