review: cover Terminal in the displacement test, correct the ipc comment

Terminal is a kind the rule accepts and the test did not exercise. It stays in
the main select loop, so nothing but the assertion was missing.

`Displaced` ends one connection, not the session - the session is precisely
what continues, on the connection that replaced it.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019aokqJuhjvB3kijXtAg5Ns

src/ipc.rs

@@ -355,9 +355,10 @@ pub enum Data {
     MouseMoveTime(i64),
     Authorize,
     Close,
-    // A newer authorized connection has taken this one's place. Ends the session like `Close`
-    // but sends the peer nothing: the peer that owned this one has already moved on, and the
-    // link it would be sent over is the very one that stopped working.
+    // A newer authorized connection has taken this one's place. Ends the superseded connection
+    // like `Close` - the session itself continues on the newer one - and sends the peer nothing:
+    // the peer has already moved on, and the link it would be sent over is the very one that
+    // stopped working.
     Displaced,
     #[cfg(windows)]
     SAS,

src/server/connection.rs

@@ -7635,12 +7635,13 @@ mod test {
         let mine = key(7, "peer");
 
         // Every kind displaces its own: a stale remote control or camera view keeps the capture
-        // loop waiting on it, and a stale transfer or tunnel holds its own resources.
+        // loop waiting on it, and a stale transfer, tunnel or terminal holds its own resources.
         for kind in [
             AuthConnType::Remote,
             AuthConnType::ViewCamera,
             AuthConnType::FileTransfer,
             AuthConnType::PortForward,
+            AuthConnType::Terminal,
         ] {
             assert!(
                 AuthedConnID::is_displaced(&conn(1, kind, mine.clone()), 2, kind, &mine),
@@ -7661,6 +7662,7 @@ mod test {
             AuthConnType::FileTransfer,
             AuthConnType::PortForward,
             AuthConnType::ViewCamera,
+            AuthConnType::Terminal,
         ] {
             assert!(
                 !AuthedConnID::is_displaced(