yes, they are compatible -- with this, if you try to zap someone that doesn't have a cashu wallet announced it will do a regular bolt11 zap from the cashu balance

(how cool is that?!)

yes, these are pubkey-locked cashu tokens, locked to the pubkey of the npub with a "02" prefix for parity

so the proofs are actually unencrypted, anyone can verify them, but only the recipient can swap them