#12: implement Antispam & Antivirus scanning pipeline (Rspamd & ClamAV)

services/protocols/internal/application/port/content_scanner.go

@@ -0,0 +1,19 @@
+package port
+
+import (
+	"context"
+
+	"lambdamail/protocols/internal/domain/valueobject"
+)
+
+type ScanInput struct {
+	ClientIP   string
+	HeloDomain string
+	Sender     string
+	Recipient  string
+	Payload    []byte
+}
+
+type ContentScanner interface {
+	Scan(ctx context.Context, input ScanInput) (*valueobject.ScanResult, error)
+}

services/protocols/internal/application/port/inbound_message_repository.go

@@ -13,6 +13,7 @@ type PersistInboundMessageInput struct {
 	Blob             BlobRef
 	SenderAddress    string
 	RecipientAddress string
+	TargetFolderName string // "INBOX", "Junk", etc. (defaults to "INBOX" if empty)
 	SPFResult        string
 	DKIMResult       string
 	DMARCResult      string