fix(cli-run): handle retry status type as non-idle in event handlers

Session status 'retry' was unhandled, leaving mainSessionIdle=true
during retries which could cause premature completion detection.

src/cli/run/event-handlers.ts

@@ -32,6 +32,8 @@ export function handleSessionStatus(ctx: RunContext, payload: EventPayload, stat
     state.mainSessionIdle = false
   } else if (props?.status?.type === "idle") {
     state.mainSessionIdle = true
+  } else if (props?.status?.type === "retry") {
+    state.mainSessionIdle = false
   }
 }