Put stone_removal_expiration onto AdHocClock

src/Goban/OGSConnectivity.ts

@@ -1698,7 +1698,9 @@ export abstract class OGSConnectivity extends GobanInteractive {
                 }
                 clock.pause_state = AdHocPauseControl2JGOFPauseState(this.pause_control);
                 if (clock.pause_state.stone_removal) {
-                    clock.stone_removal_time_left = original_clock.expiration - current_server_time;
+                    clock.stone_removal_time_left =
+                        (original_clock.stone_removal_expiration ?? original_clock.expiration) -
+                        current_server_time;
                 }
             }
 

src/engine/formats/AdHocFormat.ts

@@ -89,6 +89,13 @@ export interface AdHocClock {
      *  `expiration` (in ms) */
     start_mode?: boolean;
 
+    /** If true, the game is in stone removal phase */
+    stone_removal_mode?: boolean;
+
+    /** Time the stone removal phase will end if no action is taken,
+     *  in milliseconds since 1970. Only set when stone_removal_mode is true. */
+    stone_removal_expiration?: number;
+
     /** If set, this AdHocClock is updating the pause state */
     pause?: {
         paused: boolean;