Enhance TUI: add paste event handling, integrate bracketed paste mode, and implement paste support in editing mode.

Fixes #20

crates/owlen-tui/src/events.rs

@@ -11,6 +11,8 @@ pub enum Event {
     /// Terminal resize event
     #[allow(dead_code)]
     Resize(u16, u16),
+    /// Paste event
+    Paste(String),
     /// Tick event for regular updates
     Tick,
 }
@@ -60,6 +62,9 @@ impl EventHandler {
                             crossterm::event::Event::Resize(width, height) => {
                                 let _ = self.sender.send(Event::Resize(width, height));
                             }
+                            crossterm::event::Event::Paste(text) => {
+                                let _ = self.sender.send(Event::Paste(text));
+                            }
                             _ => {}
                         }
                     }