Show protocol enable state and which nodes have each protocol installed.

Co-authored-by: Cursor <cursoragent@cursor.com>

internal/models/models.go

@@ -25,8 +25,40 @@ type Protocol struct {
 	SortOrder   int       `json:"sort_order"`
 	CreatedAt   time.Time `json:"created_at"`
 	UpdatedAt   time.Time `json:"updated_at"`
+
+	InstalledOn []NodeProtoRef `json:"installed_on,omitempty"`
+	EnabledOn   []NodeProtoRef `json:"enabled_on,omitempty"`
 }
 
+type NodeProtoRef struct {
+	NodeID   uuid.UUID  `json:"node_id"`
+	NodeName string     `json:"node_name"`
+	Host     string     `json:"host"`
+	Status   NodeStatus `json:"status"`
+}
+
+type NodeProtocol struct {
+	NodeID       uuid.UUID `json:"node_id"`
+	ProtocolID   uuid.UUID `json:"protocol_id"`
+	ProtocolCode string    `json:"protocol_code"`
+	ProtocolName string    `json:"protocol_name"`
+	Port         int       `json:"port"`
+	Installed    bool      `json:"installed"`
+	Enabled      bool      `json:"enabled"`
+	UpdatedAt    time.Time `json:"updated_at"`
+}
+
+func (p Protocol) EnabledLabel() string {
+	if p.Enabled {
+		return "Включён"
+	}
+	return "Выключен"
+}
+
+func (p Protocol) InstallCount() int { return len(p.InstalledOn) }
+func (p Protocol) ActiveCount() int  { return len(p.EnabledOn) }
+
+
 type NodeStatus string
 
 const (