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tiennm99
25b952a9b7
The bot runs with WithNotAsyncHandlers and a single worker, so handlers execute inline on the polling goroutine. A panic in any handler therefore killed the process and took every user's bot down with it. Wrap the command closure, the callback closure and the detached command hook in a recover barrier. The callback path also answers the pending query so the client stops spinning rather than waiting out its timeout. The barrier is a backstop, not a licence to skip nil checks: handlers still guard their own inputs.