feat: add clouddrive2 storage bridge

internal/service/cloud/cloud.go

@@ -27,8 +27,9 @@ var timeNow = time.Now
 
 // Provider types recognised by the registry.
 const (
-	TypeQuark = "quark"    // 夸克网盘
-	Type115   = "cloud115" // 115 网盘
+	TypeQuark       = "quark"       // 夸克网盘
+	Type115         = "cloud115"    // 115 网盘
+	TypeCloudDrive2 = "clouddrive2" // CloudDrive2 桥接网盘
 )
 
 // ErrUnsupported is returned for an unknown provider type.
@@ -81,6 +82,8 @@ func New(typ string, cfg map[string]any, client *http.Client) (Provider, error)
 		return newQuark(cfg, client), nil
 	case Type115:
 		return new115(cfg, client), nil
+	case TypeCloudDrive2:
+		return newCloudDrive2(cfg, client), nil
 	default:
 		return nil, ErrUnsupported
 	}
@@ -88,7 +91,7 @@ func New(typ string, cfg map[string]any, client *http.Client) (Provider, error)
 
 // IsCloudType reports whether typ is a cloud-disk provider.
 func IsCloudType(typ string) bool {
-	return typ == TypeQuark || typ == Type115
+	return typ == TypeQuark || typ == Type115 || typ == TypeCloudDrive2
 }
 
 // str coerces a config value to a trimmed string.