Frame terminal reports across input reads

tests/client_terminal_runtime.rs

@@ -16,6 +16,8 @@ const SESSION_KEY: [u8; 32] = [0x91; 32];
 const INPUT_BYTES: &[u8] = concat!(
     "\x1b[A",
     "\x1b[B",
+    "\x1b[I",
+    "\x1b[O",
     "\x1b[200~",
     "paste-λ-界",
     "\x1b[201~",
@@ -149,6 +151,10 @@ fn native_client_terminal_round_trip_is_platform_complete() {
         contains(&output, b"\x1b[?1006h"),
         "SGR mouse mode was not preserved: {output:?}"
     );
+    assert!(
+        contains(&output, b"\x1b[?1004h"),
+        "focus-report mode was not preserved: {output:?}"
+    );
     assert!(
         contains(&output, b"\x1b[?25h"),
         "terminal cleanup did not restore the cursor: {output:?}"
@@ -565,6 +571,7 @@ fn run_fake_terminal_server(socket: UdpSocket, observations: mpsc::Sender<Server
                         "\x1b[?1049h",
                         "\x1b[?1003h",
                         "\x1b[?1006h",
+                        "\x1b[?1004h",
                         "\x1b[?2004h",
                         "\x1b[2J\x1b[H",
                         "DOSH_PARITY_READY"
@@ -603,7 +610,7 @@ fn run_fake_terminal_server(socket: UdpSocket, observations: mpsc::Sender<Server
                         PacketKind::Frame,
                         20,
                         16,
-                        b"\x1b[?1003l\x1b[?1006l\x1b[?1049lDOSH_PARITY_DONE",
+                        b"\x1b[?1003l\x1b[?1006l\x1b[?1004l\x1b[?1049lDOSH_PARITY_DONE",
                         false,
                         true,
                     );