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## Problem Traditionally we would detach/attach directly with curl if we wanted to "reboot" a single tenant. That's kind of inconvenient these days, because one needs to know a generation number to issue an attach request. Closes: https://github.com/neondatabase/neon/issues/6011 ## Summary of changes - Introduce a new `/reset` API, which remembers the LocationConf from the current attachment so that callers do not have to work out the correct configuration/generation to use. - As an additional support tool, allow an optional `drop_cache` query parameter, for situations where we are concerned that some on-disk state might be bad and want to clear that as well as the in-memory state. One might wonder why I didn't call this "reattach" -- it's because there's already a PS->CP API of that name and it could get confusing.