Work with BIP39 mnemonics as outward-facing seeds
Then apply the password in turning them into internally usable seeds.
+= nodes (map ship node)
+= uodes (map ship uode)
::
-+= node [meta=meta seed=@ux keys=wallet]
++= node [meta=meta seed=tape keys=wallet]
+= uode [meta=meta seed=@ux keys=edkeys]
::
-+= meta [typ=tape rev=@ud who=(unit ship)]
++= meta [typ=tape rev=@ud who=ship]
::
-+= wallet [public=@ux private=@ux chain=@ux]
++= wallet [keys=[public=@ux private=@ux] addr=@ux chain=@ux]
::
+= edkeys [auth=keypair crypt=keypair]
::
