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-server/src/webtransport.rs

@@ -415,6 +415,6 @@ pub fn build_webtransport_server_config(
 mod tests {
     #[test]
     fn webtransport_module_compiles() {
-        assert!(true);
+        // Module-level compilation check; no runtime assertion needed.
     }
 }