Plan clipboard text actions in app core

src/app_core/document_platform_io.h

@@ -24,6 +24,14 @@ enum class CursorVisibilityAction {
     hide_cursor,
 };
 
+enum class ClipboardReadAction {
+    read_text,
+};
+
+enum class ClipboardWriteAction {
+    write_text,
+};
+
 [[nodiscard]] constexpr PickedPathAction plan_picked_path(std::string_view path) noexcept
 {
     return path.empty()
@@ -52,4 +60,14 @@ enum class CursorVisibilityAction {
         : CursorVisibilityAction::hide_cursor;
 }
 
+[[nodiscard]] constexpr ClipboardReadAction plan_clipboard_read() noexcept
+{
+    return ClipboardReadAction::read_text;
+}
+
+[[nodiscard]] constexpr ClipboardWriteAction plan_clipboard_write(std::string_view) noexcept
+{
+    return ClipboardWriteAction::write_text;
+}
+
 }