feat: add native Windows recorder helper

src/lib/nativeWindowsRecording.ts

@@ -0,0 +1,41 @@
+export type NativeWindowsSourceType = "display" | "window";
+
+export type NativeWindowsRecordingRequest = {
+	recordingId?: number;
+	source: {
+		type: NativeWindowsSourceType;
+		sourceId: string;
+		displayId?: number;
+		windowHandle?: string;
+	};
+	video: {
+		fps: number;
+		width: number;
+		height: number;
+	};
+	audio: {
+		system: {
+			enabled: boolean;
+		};
+		microphone: {
+			enabled: boolean;
+			deviceId?: string;
+			gain: number;
+		};
+	};
+	webcam: {
+		enabled: boolean;
+		deviceId?: string;
+		width: number;
+		height: number;
+		fps: number;
+	};
+};
+
+export type NativeWindowsRecordingStartResult = {
+	success: boolean;
+	recordingId?: number;
+	path?: string;
+	helperPath?: string;
+	error?: string;
+};