split out overlays

dreader/overlays/__init__.py

@@ -0,0 +1,21 @@
+"""
+Overlay sub-applications for dreader.
+
+Each overlay is a self-contained sub-application that handles its own:
+- HTML generation
+- Rendering logic
+- Gesture handling
+- State management
+"""
+
+from .base import OverlaySubApplication
+from .navigation import NavigationOverlay
+from .settings import SettingsOverlay
+from .toc import TOCOverlay
+
+__all__ = [
+    'OverlaySubApplication',
+    'NavigationOverlay',
+    'SettingsOverlay',
+    'TOCOverlay',
+]