ECWID-141762 rework StorefrontPlatform to Kotlin and add StorefrontPlatform to NullablePropertyRules

Author: n-viktorovich

src/main/kotlin/com/ecwid/apiclient/v3/dto/report/enums/StorefrontPlatform.java

@@ -0,0 +1,19 @@
+package com.ecwid.apiclient.v3.dto.report.enums
+
+enum class StorefrontPlatform {
+	undefined,
+	code,
+	instantSite,
+	facebook,
+	singleProduct,
+	wix,
+	linkUp,
+	email,
+	ecwidServer,
+	wordpress,
+	squarespace,
+	joomla,
+	weebly,
+	duda,
+	other,
+}

src/main/kotlin/com/ecwid/apiclient/v3/dto/report/enums/StorefrontPlatform.kt

@@ -81,6 +81,7 @@ val otherNullablePropertyRules: List<NullablePropertyRule<*, *>> = listOf(
 	AllowNullable(ReportRequest::orderDirection),
 	AllowNullable(ReportRequest::limit),
 	AllowNullable(ReportRequest::offset),
+	AllowNullable(ReportRequest::storefrontPlatform),
 
 	AllowNullable(FetchedReportResponse::timeScaleValue),
 	AllowNullable(FetchedReportResponse::comparePeriod),