radicle-protocol depends on cyphernet, but only uses the module cyphernet::addr, which is a re-export of cypheraddr, which is unnecessary (as cypheraddr alone would do), and invites accidentally pulling in more dependencies via cyphernet.

To prevent accidentally depending on further types from cyphernet, change this to more conservativeley depend on cypheraddr.

node/debug: Use derived serializers

The construction of the debug object is unwieldy, and error prone (for example, renamed struct members have to be manually renamed in the serialization code, see “refs” vs. “refsAt”).

Use derived serializers where possible to make this easier to maintain.

remote-helper: Produce push certificates