Route document browse roots through platform services

src/platform_legacy/legacy_platform_services.cpp

@@ -298,6 +298,21 @@ public:
 #endif
     }
 
+    [[nodiscard]] std::vector<std::string> document_browse_roots(
+        std::string_view work_path,
+        std::string_view data_path) override
+    {
+#ifdef __IOS__
+        return {
+            std::string(work_path),
+            std::string(data_path) + "/Inbox",
+        };
+#else
+        (void)data_path;
+        return { std::string(work_path) };
+#endif
+    }
+
     [[nodiscard]] bool enables_live_asset_reloading() override
     {
 #if defined(__OSX__)