this is followup on question #85475:
I have learned in previous question that there is an automatic refund mechanism in case of force closure of a channel, except for some very rare circumstances. I would like to ask about two of those circumstances:
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1-how to “back up your channel state” or how to back up your seed in lightning?
(is “channel state” here a synonym for “seed”?)
And why do people say the “seed” works differently in lightning compared to BTC – differently how?
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2-how can you “give your channel to a watchtower” ? IN practical terms, if you use a current lightning wallet
thanks