perf: reduce sidebar git polling overhead

refs #353

8 files changed, 67 insertions, 63 deletions

diff --git a/tests/api_ping.rs b/tests/api_ping.rs
index 22834615..b3fc4632 100644
--- a/tests/api_ping.rs
+++ b/tests/api_ping.rs
@@ -273,7 +273,7 @@ fn ping_over_socket_returns_version() {
     assert_eq!(value["result"]["version"], env!("CARGO_PKG_VERSION"));
     // Intentionally hardcoded so wire protocol bumps require updating this test.
     // Changing this value means old clients/servers are no longer compatible.
-    assert_eq!(value["result"]["protocol"], 11);
+    assert_eq!(value["result"]["protocol"], 12);
 
     cleanup_spawned_herdr(child, base);
 }
diff --git a/tests/cli_wrapper.rs b/tests/cli_wrapper.rs
index a2bbfdcc..0c81e7e4 100644
--- a/tests/cli_wrapper.rs
+++ b/tests/cli_wrapper.rs
@@ -1238,7 +1238,7 @@ fn status_commands_report_client_and_server_versions() {
         "stdout: {full_stdout}"
     );
     assert!(
-        full_stdout.contains("  protocol: 11"),
+        full_stdout.contains("  protocol: 12"),
         "stdout: {full_stdout}"
     );
     assert!(full_stdout.contains("server:\n"), "stdout: {full_stdout}");
@@ -1271,7 +1271,7 @@ fn status_commands_report_client_and_server_versions() {
         "stdout: {server_stdout}"
     );
     assert!(
-        server_stdout.contains("protocol: 11"),
+        server_stdout.contains("protocol: 12"),
         "stdout: {server_stdout}"
     );
 
@@ -1283,7 +1283,7 @@ fn status_commands_report_client_and_server_versions() {
         "stdout: {client_stdout}"
     );
     assert!(
-        client_stdout.contains("protocol: 11"),
+        client_stdout.contains("protocol: 12"),
         "stdout: {client_stdout}"
     );
     assert!(
@@ -1293,7 +1293,7 @@ fn status_commands_report_client_and_server_versions() {
 
     let full_json = run_cli_json(&socket_path, &["status", "--json"]);
     assert_eq!(full_json["client"]["version"], env!("CARGO_PKG_VERSION"));
-    assert_eq!(full_json["client"]["protocol"], 11);
+    assert_eq!(full_json["client"]["protocol"], 12);
     assert_eq!(full_json["server"]["status"], "running");
     assert_eq!(full_json["server"]["running"], true);
     assert_eq!(full_json["server"]["compatible"], true);
@@ -1307,12 +1307,12 @@ fn status_commands_report_client_and_server_versions() {
     let server_json = run_cli_json(&socket_path, &["status", "server", "--json"]);
     assert_eq!(server_json["status"], "running");
     assert_eq!(server_json["version"], env!("CARGO_PKG_VERSION"));
-    assert_eq!(server_json["protocol"], 11);
+    assert_eq!(server_json["protocol"], 12);
     assert_eq!(server_json["compatible"], true);
 
     let client_json = run_cli_json(&socket_path, &["status", "client", "--json"]);
     assert_eq!(client_json["version"], env!("CARGO_PKG_VERSION"));
-    assert_eq!(client_json["protocol"], 11);
+    assert_eq!(client_json["protocol"], 12);
     assert!(client_json["binary"]
         .as_str()
         .is_some_and(|path| !path.is_empty()));
diff --git a/tests/client_mode.rs b/tests/client_mode.rs
index b7504aca..13dca5ef 100644
--- a/tests/client_mode.rs
+++ b/tests/client_mode.rs
@@ -274,8 +274,8 @@ fn client_connects_and_receives_frame() {
     // Connect and handshake.
     let mut stream = UnixStream::connect(&client_socket).expect("should connect to client socket");
     let (version, error) =
-        client_handshake(&mut stream, 11, 80, 24).expect("handshake should succeed");
-    assert_eq!(version, 11, "server should report protocol version 11");
+        client_handshake(&mut stream, 12, 80, 24).expect("handshake should succeed");
+    assert_eq!(version, 12, "server should report protocol version 12");
     assert!(
         error.is_none(),
         "handshake should not have error: {:?}",
@@ -342,8 +342,8 @@ fn client_sees_headless_startup_config_diagnostic() {
 
     let mut stream = UnixStream::connect(&client_socket).expect("should connect to client socket");
     let (version, error) =
-        client_handshake(&mut stream, 11, 80, 24).expect("handshake should succeed");
-    assert_eq!(version, 11);
+        client_handshake(&mut stream, 12, 80, 24).expect("handshake should succeed");
+    assert_eq!(version, 12);
     assert!(error.is_none(), "{:?}", error);
 
     stream
@@ -391,8 +391,8 @@ fn client_input_forwarded_to_pane() {
     // Connect and handshake.
     let mut stream = UnixStream::connect(&client_socket).expect("should connect to client socket");
     let (version, error) =
-        client_handshake(&mut stream, 11, 80, 24).expect("handshake should succeed");
-    assert_eq!(version, 11);
+        client_handshake(&mut stream, 12, 80, 24).expect("handshake should succeed");
+    assert_eq!(version, 12);
     assert!(error.is_none(), "{:?}", error);
 
     // Send an Input message containing "echo hello\n".
@@ -445,8 +445,8 @@ fn client_resize_sends_message() {
     // Connect and handshake.
     let mut stream = UnixStream::connect(&client_socket).expect("should connect to client socket");
     let (version, error) =
-        client_handshake(&mut stream, 11, 80, 24).expect("handshake should succeed");
-    assert_eq!(version, 11);
+        client_handshake(&mut stream, 12, 80, 24).expect("handshake should succeed");
+    assert_eq!(version, 12);
     assert!(error.is_none(), "{:?}", error);
 
     // Drain the initial frame(s).
@@ -504,8 +504,8 @@ fn server_shutdown_sends_message_to_client() {
     // Connect and handshake.
     let mut stream = UnixStream::connect(&client_socket).expect("should connect to client socket");
     let (version, error) =
-        client_handshake(&mut stream, 11, 80, 24).expect("handshake should succeed");
-    assert_eq!(version, 11);
+        client_handshake(&mut stream, 12, 80, 24).expect("handshake should succeed");
+    assert_eq!(version, 12);
     assert!(error.is_none(), "{:?}", error);
 
     // Send SIGINT so the server takes the graceful shutdown path and
@@ -736,8 +736,8 @@ fn client_receives_frame_after_pane_output() {
     // Connect and handshake.
     let mut stream = UnixStream::connect(&client_socket).expect("should connect to client socket");
     let (version, error) =
-        client_handshake(&mut stream, 11, 80, 24).expect("handshake should succeed");
-    assert_eq!(version, 11);
+        client_handshake(&mut stream, 12, 80, 24).expect("handshake should succeed");
+    assert_eq!(version, 12);
     assert!(error.is_none(), "{:?}", error);
 
     read_next_frame_payload(&mut stream, Duration::from_secs(10))
@@ -783,8 +783,8 @@ fn navigate_mode_keybind_dispatch_in_server() {
     // Connect and handshake.
     let mut stream = UnixStream::connect(&client_socket).expect("should connect to client socket");
     let (version, error) =
-        client_handshake(&mut stream, 11, 80, 24).expect("handshake should succeed");
-    assert_eq!(version, 11);
+        client_handshake(&mut stream, 12, 80, 24).expect("handshake should succeed");
+    assert_eq!(version, 12);
     assert!(error.is_none(), "{:?}", error);
 
     // Drain initial frames.
@@ -901,8 +901,8 @@ fn graceful_shutdown_sends_server_shutdown_to_client() {
     // Connect and handshake.
     let mut stream = UnixStream::connect(&client_socket).expect("should connect to client socket");
     let (version, error) =
-        client_handshake(&mut stream, 11, 80, 24).expect("handshake should succeed");
-    assert_eq!(version, 11);
+        client_handshake(&mut stream, 12, 80, 24).expect("handshake should succeed");
+    assert_eq!(version, 12);
     assert!(error.is_none(), "{:?}", error);
 
     // Drain initial frame(s).
@@ -1000,8 +1000,8 @@ fn client_receives_notify_on_agent_state_change() {
     // Connect as a client and perform handshake.
     let mut stream = UnixStream::connect(&client_socket).expect("should connect");
     let (version, error) =
-        client_handshake(&mut stream, 11, 80, 24).expect("handshake should succeed");
-    assert_eq!(version, 11);
+        client_handshake(&mut stream, 12, 80, 24).expect("handshake should succeed");
+    assert_eq!(version, 12);
     assert!(error.is_none(), "{:?}", error);
 
     // Drain initial frame(s).
diff --git a/tests/cross_area.rs b/tests/cross_area.rs
index 008358d0..38c22192 100644
--- a/tests/cross_area.rs
+++ b/tests/cross_area.rs
@@ -428,6 +428,7 @@ fn client_handshake(stream: &mut UnixStream, version: u32, cols: u16, rows: u16)
     payload.extend_from_slice(&encode_varint_u32(16)); // cell_height_px
     payload.extend_from_slice(&encode_varint_u32(0)); // RenderEncoding::SemanticFrame
     payload.extend_from_slice(&encode_varint_u32(0)); // ClientKeybindings::Server
+    payload.extend_from_slice(&encode_varint_u32(0)); // ClientLaunchMode::App
 
     stream
         .write_all(&frame_message(&payload))
@@ -686,7 +687,7 @@ fn cross_area_detach_and_reattach_preserves_state() {
 
     // Local attach (client A).
     let mut client_a = UnixStream::connect(&client_socket).expect("client A should connect");
-    client_handshake(&mut client_a, 11, 100, 30);
+    client_handshake(&mut client_a, 12, 100, 30);
     assert!(wait_for_frame(&mut client_a, Duration::from_secs(2)));
 
     // Use herdr: create a workspace and write output into its pane.
@@ -723,7 +724,7 @@ fn cross_area_detach_and_reattach_preserves_state() {
 
     // Reattach from another terminal/session (client B).
     let mut client_b = UnixStream::connect(&client_socket).expect("client B should connect");
-    client_handshake(&mut client_b, 11, 80, 24);
+    client_handshake(&mut client_b, 12, 80, 24);
     assert!(
         wait_for_frame(&mut client_b, Duration::from_secs(5)),
         "reattached client should receive frame"
@@ -779,7 +780,7 @@ fn cross_area_agent_process_survives_detach_and_reattach() {
     wait_for_socket(&client_socket, Duration::from_secs(10));
 
     let mut client_a = UnixStream::connect(&client_socket).expect("client A should connect");
-    client_handshake(&mut client_a, 11, 100, 30);
+    client_handshake(&mut client_a, 12, 100, 30);
     assert!(wait_for_frame(&mut client_a, Duration::from_secs(2)));
 
     let created = workspace_create(&api_socket, "agent-persist");
@@ -832,7 +833,7 @@ fn cross_area_agent_process_survives_detach_and_reattach() {
 
     // Reattach and ensure client-side state reflects the persisted working status.
     let mut client_b = UnixStream::connect(&client_socket).expect("client B should connect");
-    client_handshake(&mut client_b, 11, 80, 24);
+    client_handshake(&mut client_b, 12, 80, 24);
     let saw_working_on_client =
         wait_for_frame_matching(&mut client_b, Duration::from_secs(5), |frame| {
             frame_contains_text(frame, "working")
@@ -877,7 +878,7 @@ fn cross_area_client_and_api_workspace_views_are_consistent() {
     wait_for_socket(&client_socket, Duration::from_secs(10));
 
     let mut client = UnixStream::connect(&client_socket).expect("client should connect");
-    client_handshake(&mut client, 11, 100, 30);
+    client_handshake(&mut client, 12, 100, 30);
     assert!(wait_for_frame(&mut client, Duration::from_secs(2)));
     drain_server_messages(&mut client, Duration::from_millis(300));
 
@@ -940,9 +941,9 @@ fn cross_area_two_clients_shared_view_and_single_detach_stability() {
     wait_for_socket(&client_socket, Duration::from_secs(10));
 
     let mut client_a = UnixStream::connect(&client_socket).expect("client A should connect");
-    client_handshake(&mut client_a, 11, 110, 30);
+    client_handshake(&mut client_a, 12, 110, 30);
     let mut client_b = UnixStream::connect(&client_socket).expect("client B should connect");
-    client_handshake(&mut client_b, 11, 100, 30);
+    client_handshake(&mut client_b, 12, 100, 30);
 
     assert!(wait_for_frame(&mut client_a, Duration::from_secs(2)));
     assert!(wait_for_frame(&mut client_b, Duration::from_secs(2)));
@@ -1111,7 +1112,7 @@ fn cross_area_server_kill_then_restart_and_reconnect() {
 
     let mut reconnect_client =
         UnixStream::connect(&client_socket).expect("new client should connect after restart");
-    client_handshake(&mut reconnect_client, 11, 80, 24);
+    client_handshake(&mut reconnect_client, 12, 80, 24);
     assert!(
         wait_for_frame(&mut reconnect_client, Duration::from_secs(5)),
         "new client should receive frame after restart"
diff --git a/tests/detach_reattach.rs b/tests/detach_reattach.rs
index 1e90d94b..18b0e6fc 100644
--- a/tests/detach_reattach.rs
+++ b/tests/detach_reattach.rs
@@ -276,8 +276,8 @@ fn navigate_q_detaches_client_and_server_persists() {
     // Connect and handshake.
     let mut stream = UnixStream::connect(&client_socket).expect("should connect to client socket");
     let (version, error) =
-        client_handshake(&mut stream, 11, 80, 24).expect("handshake should succeed");
-    assert_eq!(version, 11);
+        client_handshake(&mut stream, 12, 80, 24).expect("handshake should succeed");
+    assert_eq!(version, 12);
     assert!(error.is_none(), "{:?}", error);
 
     // Drain initial frames.
@@ -338,8 +338,8 @@ fn explicit_detach_message_causes_clean_disconnect() {
     // Connect and handshake.
     let mut stream = UnixStream::connect(&client_socket).expect("should connect");
     let (version, error) =
-        client_handshake(&mut stream, 11, 80, 24).expect("handshake should succeed");
-    assert_eq!(version, 11);
+        client_handshake(&mut stream, 12, 80, 24).expect("handshake should succeed");
+    assert_eq!(version, 12);
     assert!(error.is_none(), "{:?}", error);
 
     // Drain initial frames.
@@ -397,8 +397,8 @@ fn reattach_after_detach_shows_current_state() {
     // --- Client A ---
     let mut stream_a = UnixStream::connect(&client_socket).expect("client A should connect");
     let (version, error) =
-        client_handshake(&mut stream_a, 11, 80, 24).expect("handshake should succeed");
-    assert_eq!(version, 11);
+        client_handshake(&mut stream_a, 12, 80, 24).expect("handshake should succeed");
+    assert_eq!(version, 12);
     assert!(error.is_none(), "{:?}", error);
 
     // Drain initial frames.
@@ -436,8 +436,8 @@ fn reattach_after_detach_shows_current_state() {
     // --- Client B (reattach) ---
     let mut stream_b = UnixStream::connect(&client_socket).expect("client B should connect");
     let (version, error) =
-        client_handshake(&mut stream_b, 11, 80, 24).expect("handshake should succeed");
-    assert_eq!(version, 11);
+        client_handshake(&mut stream_b, 12, 80, 24).expect("handshake should succeed");
+    assert_eq!(version, 12);
     assert!(
         error.is_none(),
         "reattach handshake should succeed: {:?}",
@@ -516,8 +516,8 @@ fn processes_survive_during_and_after_detach() {
     // Connect and handshake.
     let mut stream = UnixStream::connect(&client_socket).expect("should connect");
     let (version, error) =
-        client_handshake(&mut stream, 11, 80, 24).expect("handshake should succeed");
-    assert_eq!(version, 11);
+        client_handshake(&mut stream, 12, 80, 24).expect("handshake should succeed");
+    assert_eq!(version, 12);
     assert!(error.is_none(), "{:?}", error);
 
     // Drain initial frames.
@@ -555,8 +555,8 @@ fn processes_survive_during_and_after_detach() {
     // Reattach — verify we can connect and receive a frame.
     let mut stream_b = UnixStream::connect(&client_socket).expect("should reattach");
     let (version, error) =
-        client_handshake(&mut stream_b, 11, 80, 24).expect("reattach handshake should succeed");
-    assert_eq!(version, 11);
+        client_handshake(&mut stream_b, 12, 80, 24).expect("reattach handshake should succeed");
+    assert_eq!(version, 12);
     assert!(error.is_none(), "{:?}", error);
 
     // Verify the reattached client receives a frame.
@@ -604,8 +604,8 @@ fn server_persists_after_client_connection_drop() {
     // Connect and handshake.
     let mut stream = UnixStream::connect(&client_socket).expect("should connect");
     let (version, error) =
-        client_handshake(&mut stream, 11, 80, 24).expect("handshake should succeed");
-    assert_eq!(version, 11);
+        client_handshake(&mut stream, 12, 80, 24).expect("handshake should succeed");
+    assert_eq!(version, 12);
     assert!(error.is_none(), "{:?}", error);
 
     // Drain initial frames.
@@ -631,8 +631,8 @@ fn server_persists_after_client_connection_drop() {
     // Reattach — verify we can connect and handshake again.
     let mut stream_b = UnixStream::connect(&client_socket).expect("should reattach");
     let (version, error) =
-        client_handshake(&mut stream_b, 11, 80, 24).expect("reattach handshake should succeed");
-    assert_eq!(version, 11);
+        client_handshake(&mut stream_b, 12, 80, 24).expect("reattach handshake should succeed");
+    assert_eq!(version, 12);
     assert!(error.is_none(), "reattach should succeed: {:?}", error);
 
     cleanup_spawned_herdr(spawned, base);
@@ -653,8 +653,8 @@ fn detached_output_preserves_last_attached_pty_size() {
 
     let mut stream = UnixStream::connect(&client_socket).expect("client should connect");
     let (version, error) =
-        client_handshake(&mut stream, 11, 120, 40).expect("handshake should succeed");
-    assert_eq!(version, 11);
+        client_handshake(&mut stream, 12, 120, 40).expect("handshake should succeed");
+    assert_eq!(version, 12);
     assert!(error.is_none(), "{:?}", error);
     drain_messages(&mut stream);
 
@@ -722,8 +722,8 @@ fn output_accumulated_while_detached_visible_on_reattach() {
     // Connect and handshake client A.
     let mut stream_a = UnixStream::connect(&client_socket).expect("client A should connect");
     let (version, error) =
-        client_handshake(&mut stream_a, 11, 80, 24).expect("handshake should succeed");
-    assert_eq!(version, 11);
+        client_handshake(&mut stream_a, 12, 80, 24).expect("handshake should succeed");
+    assert_eq!(version, 12);
     assert!(error.is_none(), "{:?}", error);
 
     // Detach client A immediately.
@@ -780,8 +780,8 @@ fn output_accumulated_while_detached_visible_on_reattach() {
     // --- Client B (reattach) ---
     let mut stream_b = UnixStream::connect(&client_socket).expect("client B should connect");
     let (version, error) =
-        client_handshake(&mut stream_b, 11, 80, 24).expect("reattach handshake should succeed");
-    assert_eq!(version, 11);
+        client_handshake(&mut stream_b, 12, 80, 24).expect("reattach handshake should succeed");
+    assert_eq!(version, 12);
     assert!(error.is_none(), "{:?}", error);
 
     // Client B should receive a frame with the current state.
diff --git a/tests/multi_client.rs b/tests/multi_client.rs
index ca525e69..3080b677 100644
--- a/tests/multi_client.rs
+++ b/tests/multi_client.rs
@@ -500,6 +500,7 @@ fn client_handshake(
             &encode_varint_u32(16), // cell_height_px
             &encode_varint_u32(0),  // RenderEncoding::SemanticFrame
             &encode_varint_u32(0),  // ClientKeybindings::Server
+            &encode_varint_u32(0),  // ClientLaunchMode::App
         ],
     );
     stream
@@ -550,7 +551,7 @@ fn client_handshake(
 
 fn connect_raw_client(client_socket: &Path, cols: u16, rows: u16) -> UnixStream {
     let mut stream = UnixStream::connect(client_socket).expect("should connect to client socket");
-    client_handshake(&mut stream, 11, cols, rows).expect("handshake should succeed");
+    client_handshake(&mut stream, 12, cols, rows).expect("handshake should succeed");
     stream
 }
 
diff --git a/tests/server_headless.rs b/tests/server_headless.rs
index 332398e0..08d4f5a5 100644
--- a/tests/server_headless.rs
+++ b/tests/server_headless.rs
@@ -180,6 +180,7 @@ fn client_handshake(
             &encode_varint_u32(16), // cell_height_px
             &encode_varint_u32(0),  // RenderEncoding::SemanticFrame
             &encode_varint_u32(0),  // ClientKeybindings::Server
+            &encode_varint_u32(0),  // ClientLaunchMode::App
         ],
     );
     let framed = frame_message(&hello_payload);
@@ -594,9 +595,9 @@ fn client_handshake_succeeds() {
 
     // Send Hello with the current protocol version, 80 cols, 24 rows.
     let (version, error) =
-        client_handshake(&mut stream, 11, 80, 24).expect("handshake should succeed");
+        client_handshake(&mut stream, 12, 80, 24).expect("handshake should succeed");
 
-    assert_eq!(version, 11, "server should report protocol version 11");
+    assert_eq!(version, 12, "server should report protocol version 12");
     assert!(
         error.is_none(),
         "handshake should not have an error: {:?}",
@@ -625,7 +626,7 @@ fn client_handshake_rejects_incompatible_version() {
     let (version, error) = client_handshake(&mut stream, 0, 80, 24)
         .expect("should read Welcome response even on rejection");
 
-    assert_eq!(version, 11, "server should report its version 11");
+    assert_eq!(version, 12, "server should report its version 12");
     assert!(
         error.is_some(),
         "version 0 should be rejected with an error"
@@ -650,10 +651,10 @@ fn client_handshake_clamps_small_terminal_size() {
     // Send Hello with 0x0 terminal size — should be clamped.
     let mut stream = UnixStream::connect(&client_socket).expect("should connect to client socket");
 
-    let (version, error) = client_handshake(&mut stream, 11, 0, 0)
+    let (version, error) = client_handshake(&mut stream, 12, 0, 0)
         .expect("handshake with 0x0 should succeed (server clamps)");
 
-    assert_eq!(version, 11);
+    assert_eq!(version, 12);
     assert!(
         error.is_none(),
         "0x0 size should be accepted (clamped): {:?}",
@@ -713,9 +714,9 @@ fn no_hello_client_closed_within_five_seconds() {
     // Verify the server is still healthy — a proper client can still connect.
     let mut good_stream =
         UnixStream::connect(&client_socket).expect("should connect after no-hello client");
-    let (version, error) = client_handshake(&mut good_stream, 11, 80, 24)
+    let (version, error) = client_handshake(&mut good_stream, 12, 80, 24)
         .expect("proper handshake should still work after no-hello client");
-    assert_eq!(version, 11);
+    assert_eq!(version, 12);
     assert!(error.is_none());
 
     // API should still work.
diff --git a/tests/support/mod.rs b/tests/support/mod.rs
index cae140c9..0e357ff7 100644
--- a/tests/support/mod.rs
+++ b/tests/support/mod.rs
@@ -224,6 +224,7 @@ pub fn client_handshake(
             &encode_varint_u32(16), // cell_height_px
             &encode_varint_u32(0),  // RenderEncoding::SemanticFrame
             &encode_varint_u32(0),  // ClientKeybindings::Server
+            &encode_varint_u32(0),  // ClientLaunchMode::App
         ],
     );
     let framed = frame_message(&hello_payload);