Create BearWave macOS radio-first app

Sources/BearWaveCore/Models/StationGroup.swift

@@ -0,0 +1,15 @@
+import Foundation
+
+public struct StationGroup: Codable, Hashable, Identifiable, Sendable {
+    public var id: String
+    public var name: String
+    public var stationIDs: [String]
+    public var sortOrder: Int
+
+    public init(id: String = UUID().uuidString, name: String, stationIDs: [String] = [], sortOrder: Int = 0) {
+        self.id = id
+        self.name = name
+        self.stationIDs = stationIDs
+        self.sortOrder = sortOrder
+    }
+}