Reorganize top-level directories with clearer naming convention

app -> app-desktop-macos, presets -> app-presets, server -> remote-server,
daw-config-reaper -> osc-config-daw, plugin-reaper-realearn -> plugin-reaper-relearn.
Updated run.py and presets.py path references accordingly.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

plugin-reaper-relearn/swell-ui/src/lib.rs

@@ -0,0 +1,41 @@
+mod view_manager;
+pub use view_manager::*;
+
+mod window;
+pub use window::*;
+
+mod device_context;
+pub use device_context::*;
+
+mod menu;
+pub use menu::*;
+
+mod view;
+pub use view::*;
+
+mod units;
+pub use units::*;
+
+mod types;
+pub use types::*;
+
+mod string_types;
+pub use string_types::*;
+
+pub mod menu_tree;
+
+#[macro_use]
+mod color;
+pub use color::*;
+
+mod brush;
+pub use brush::*;
+
+mod font;
+pub use font::*;
+
+#[cfg(target_os = "macos")]
+mod macos;
+
+#[cfg(target_os = "windows")]
+mod win;