fetch abstracts how a peer's agenda arrives: (fetch peer-id ws we) ->
{:status :ok :occurrences} | {:status :error}. ev/federated-agenda-via merges
local + trusted peers fetched via the transport; unreachable peers degrade
gracefully. ev/peer-fetch = in-process adapter; ev/federation-status reports
reachability. A real fed-sx transport drops in unchanged. 278/278 green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
federation.sx: a peer publishes a schedule; ev/federated-agenda merges local
(origin :local) with trusted peers' agendas, sorted by start, tagged with
:origin provenance. Trust is a peer-id set re-checked per merge; untrusted
peers contribute nothing. Real transport slots behind ev/peer-agenda.
209/209 green — all four plan phases implemented.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>