/peer/initiate checked `response.ok` to decide whether to activate the
local peer. `response.ok` is true for the full 2xx range, so a remote
that returned 202 (queued for admin approval — autoAcceptPeering off
on their side) caused the local peer to flip to `active` while the
remote had us `awaiting_approval`. The split only self-healed when
the remote admin approved and pushed us an `awaiting_approval → active`
override via the peer_approval_requests inbound path.
The auto-peer flow in federationPeering.ts:performHandshake already
had the correct 202 branch: set local status to awaiting_approval,
broadcast federation_peers_changed, surface a pending outcome. Mirror
it here:
- Check response.status === 202 BEFORE the !response.ok branch so the
fall-through can't reach the activation code.
- Transition local peer to awaiting_approval (not active).
- Broadcast federation_peers_changed so other admin tabs refresh.
- Return 202 with the sanitized peer so the client observes the
queued state distinctly from both success and failure.
Also added the missing federation_peers_changed broadcast on the
activation (200) path for parity with every other peer-state-change
site in the codebase — it was a pre-existing drift that would leave
sibling admin tabs stale after an initiate. Pattern-aligned with
federationPeering.ts:160 and the rest of routes/federation.ts.
Docs: expanded Phase 1 bullets in docs/systems/federation.md to cover
the 200 / 202 / other non-2xx / network-error branches explicitly and
reference the mirrored auto-peer branch.
Verified: pnpm -r typecheck clean (shared + server), vitest 70/70
pass.
Closes#21 from S2S DM unification backlog.