Add sample management and upload flows to Assets module.

Extend media library for sample kind with project selection, wire home routing for sample entries, and expand Assets tests.

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

suixinkan/Features/Home/Models/HomeMenuItem.swift

@@ -36,6 +36,8 @@ enum HomeRoute: Hashable {
     case cloudStorageTransit
     case materialLibrary
     case materialUpload
+    case sampleLibrary
+    case sampleUpload
     case albumList
     case albumTrailer
     case modulePlaceholder(uri: String, title: String)