fix(mothership): keep the takeover stop handler module-private

Author: waleedlatif1

apps/sim/lib/mothership/request/application/abandoned-runs.ts

@@ -122,7 +122,7 @@ export function startAbandonedRunTakeover(): void {
 }
 
 /** Ends the scans and refuses every takeover not yet committed, including one in flight. */
-export function stopAbandonedRunTakeover(): void {
+function stopAbandonedRunTakeover(): void {
   clearInterval(timer)
   shutdown.abort()
 }