jael: send updates to all "general" pubkey subs
Subscribing with `[%public-keys ~]` should give updates for all ships we know
about, including moons.
++ subscribers-on-ship
|= =ship
^- (set duct)
- =/ specific-subs (~(get ju ney.zim) ship)
- =/ general-subs=(set duct)
- ?: ?=(?(%czar %king %duke) (clan:title ship))
- nel.zim
- ~
- (~(uni in specific-subs) general-subs)
+ :: union of general and ship-specific subs
+ ::
+ %- ~(uni in nel.zim)
+ (~(get ju ney.zim) ship)
::
++ feed
|_ :: hen: subscription source
