added artifacts

internal/domain/federation/inbox.go

@@ -4,6 +4,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"log"
+	"strings"
 	"time"
 
 	"xorm.io/xorm"
@@ -39,6 +40,16 @@ func Receive(db *xorm.Engine, localActor *models.FederationActor, body []byte) e
 		handleAccept(db, localActor, activity)
 	case "Undo":
 		handleUndo(db, localActor, activity)
+	case "Create":
+		if IsCreatePullRequest(body) {
+			// Derive instanceURL from the local actor's APID.
+			instanceURL := extractInstanceURL(localActor.APID)
+			if err := HandleCreatePullRequest(db, body, instanceURL); err != nil {
+				log.Printf("federation: handle Create(PullRequest): %v", err)
+			}
+		} else {
+			log.Printf("federation: received Create activity from %s (non-PR, skipped)", actorAPID)
+		}
 	default:
 		log.Printf("federation: received unhandled activity type %q from %s", actType, actorAPID)
 	}
@@ -111,3 +122,13 @@ func mustJSON(v any) string {
 	b, _ := json.Marshal(v)
 	return string(b)
 }
+
+func extractInstanceURL(apid string) string {
+	// apid is like "https://example.com/users/alice"
+	// Return "https://example.com"
+	parts := strings.SplitN(apid, "/", 4)
+	if len(parts) >= 3 {
+		return parts[0] + "//" + parts[2]
+	}
+	return apid
+}