traffic: add per-app runtime app routing via cgroup marks

selective-vpn-api/app/types.go

@@ -185,6 +185,43 @@ type TrafficInterfacesResponse struct {
 	IfaceReason    string   `json:"iface_reason,omitempty"`
 }
 
+// ---------------------------------------------------------------------
+// traffic app marks (per-app routing via cgroup -> fwmark)
+// ---------------------------------------------------------------------
+
+type TrafficAppMarksOp string
+
+const (
+	TrafficAppMarksAdd   TrafficAppMarksOp = "add"
+	TrafficAppMarksDel   TrafficAppMarksOp = "del"
+	TrafficAppMarksClear TrafficAppMarksOp = "clear"
+)
+
+// EN: Runtime app marking request. Used by per-app launcher wrappers.
+// RU: Runtime app marking запрос. Используется wrapper-лаунчером per-app.
+type TrafficAppMarksRequest struct {
+	Op         TrafficAppMarksOp `json:"op"`
+	Target     string            `json:"target"` // vpn|direct
+	Cgroup     string            `json:"cgroup,omitempty"`
+	TimeoutSec int               `json:"timeout_sec,omitempty"` // only for add
+}
+
+type TrafficAppMarksResponse struct {
+	OK         bool   `json:"ok"`
+	Message    string `json:"message,omitempty"`
+	Op         string `json:"op,omitempty"`
+	Target     string `json:"target,omitempty"`
+	Cgroup     string `json:"cgroup,omitempty"`
+	CgroupID   uint64 `json:"cgroup_id,omitempty"`
+	TimeoutSec int    `json:"timeout_sec,omitempty"`
+}
+
+type TrafficAppMarksStatusResponse struct {
+	VPNCount    int    `json:"vpn_count"`
+	DirectCount int    `json:"direct_count"`
+	Message     string `json:"message,omitempty"`
+}
+
 type SystemdState struct {
 	State string `json:"state"`
 }