fix: remove TUI boolean bug, P2P unwrap violation, and WebTransport placeholder

- Remove `|| true` from cursor positioning condition in v2_tui.rs
- Replace .lock().unwrap() with .expect() in P2P routing tests
- Remove assert!(true) placeholder in WebTransport test

crates/quicprochat-client/src/client/v2_tui.rs

@@ -829,7 +829,7 @@ fn draw_input(frame: &mut Frame, app: &TuiApp, area: Rect) {
     frame.render_widget(input_text, area);
 
     // Position cursor in the input area.
-    if !app.input.is_empty() || true {
+    if !app.input.is_empty() {
         let cursor_x = area.x + 1 + app.input_cursor as u16;
         let cursor_y = area.y + 1;
         if cursor_x < area.x + area.width - 1 {