feat: add restart button

main.jai

@@ -1148,6 +1148,7 @@ show_context_menu :: (app: *App_State) {
 
     AppendMenuW(hMenu, MF_SEPARATOR, 0, null);
 
+    AppendMenuW(hMenu, MF_STRING, CMD_RESTART, utf8_to_wide("Restart"));
     toggle_str := ifx app.singbox_running then "Stop Sing-box" else "Start Sing-box";
     AppendMenuW(hMenu, MF_STRING, CMD_START_STOP, utf8_to_wide(toggle_str));
     AppendMenuW(hMenu, MF_STRING, CMD_UPDATE_NOW, utf8_to_wide("Update Config Now"));
@@ -1229,6 +1230,31 @@ show_context_menu :: (app: *App_State) {
     cmd := TrackPopupMenu(hMenu, track_flags, cursor_pos.x, cursor_pos.y, 0, app.hwnd, null);
 
     if cmd == {
+        case CMD_RESTART; {
+            log_print("Restart requested, forcing config refresh to select new server.\n");
+            if app.singbox_running {
+                stop_singbox(app);
+            }
+
+            // Force re-download of config (remote may assign different server) then (re)start sing-box.
+            app.is_updating = true;
+            app.animation_frame = 0;
+            SetTimer(app.hwnd, TIMER_ANIMATION, 150, null);
+            update_tray(app);
+
+            _, success, err_msg := perform_update(app.is_test_mode);
+
+            app.is_updating = false;
+            KillTimer(app.hwnd, TIMER_ANIMATION);
+            update_tray(app);
+
+            if success {
+                start_singbox(app);
+            } else {
+                msg := tprint("Failed to refresh configuration for restart.\nError: %", err_msg);
+                MessageBoxW(app.hwnd, utf8_to_wide(msg), utf8_to_wide("Sing-box Tray"), MB_ICONERROR);
+            }
+        }
         case CMD_START_STOP; {
             if app.singbox_running {
                 stop_singbox(app);

win32.jai

@@ -166,6 +166,7 @@ CMD_UPDATE_3D       :: 1016;
 CMD_UPDATE_WEEKLY   :: 1017;
 CMD_CONFIG_DIR      :: 1018;
 CMD_UPDATE_CORE     :: 1019;
+CMD_RESTART         :: 1020;
 
 
 // Boolean constants