Consolidate event handling into events.rs

The event loop function is now defined in `events.rs`, the redundant
`handle_events.rs` file is removed, and the module re‑exports are
updated
to expose `handle_events` from `events`.

src/app/threads/events.rs

@@ -1,6 +1,30 @@
 use ratatui::crossterm::event::KeyEvent;
+use ratatui::crossterm::event::{Event, read};
+use std::sync::mpsc::Sender;
 
 pub enum AppEvent {
     Input(KeyEvent),
     Resize(u16, u16),
 }
+
+/// Reads *all* crossterm events and forwards the ones we care about.
+pub fn handle_events(tx: Sender<AppEvent>) {
+    loop {
+        match read() {
+            Ok(ev) => match ev {
+                Event::Key(key) => {
+                    if tx.send(AppEvent::Input(key)).is_err() {
+                        break;
+                    }
+                }
+                Event::Resize(cols, rows) => {
+                    if tx.send(AppEvent::Resize(cols, rows)).is_err() {
+                        break;
+                    }
+                }
+                _ => {}
+            },
+            Err(_) => continue,
+        }
+    }
+}