Split menu actions for smaller footprint

src/activities/reader/EpubReaderActivity.h

@@ -9,6 +9,17 @@
 #include "activities/Activity.h"
 
 class EpubReaderActivity final : public Activity {
+  // Reader can launch sync in three UX modes:
+  // - COMPARE: legacy chooser (apply/upload) for power users.
+  // - PULL_REMOTE / PUSH_LOCAL: direct one-step actions from menu entries.
+  // Keeping this split in the caller avoids branching on menu semantics deep
+  // inside generic reader state handling.
+  enum class SyncLaunchMode {
+    COMPARE,
+    PULL_REMOTE,
+    PUSH_LOCAL,
+  };
+
   std::shared_ptr<Epub> epub;
   std::unique_ptr<Section> section = nullptr;
   int currentSpineIndex = 0;
@@ -58,7 +69,7 @@ class EpubReaderActivity final : public Activity {
   // Jump to a percentage of the book (0-100), mapping it to spine and page.
   void jumpToPercent(int percent);
   void onReaderMenuConfirm(EpubReaderMenuActivity::MenuAction action);
-  void launchKOReaderSync();
+  void launchKOReaderSync(SyncLaunchMode mode = SyncLaunchMode::COMPARE);
   void handleSyncResult(const ActivityResult& result);
   void applyOrientation(uint8_t orientation);
   void toggleAutoPageTurn(uint8_t selectedPageTurnOption);