* feat(gateway): make suspend/resume operator-usable end to end
A prepared Gateway now accepts authenticated WebSocket connects while
keeping every method except gateway.suspend.* fenced, so a fresh CLI or
controller process can resume a suspension instead of dead-ending on a
rejected upgrade until the two-minute lease expires. Restart drain,
worker ingress, and desktop-observe streams stay fully closed.
The gateway client surfaces non-101 upgrade responses (bounded body
read) as typed retryable errors instead of an opaque 1006 close, and
new openclaw gateway suspend / resume commands drive the whole
handshake, including bounded --wait polling with blocker output.
Live-verified on an isolated dev gateway: prepare, SIGSTOP/SIGCONT
freeze, resume, over-TTL expiry self-heal, conflict and mismatch paths.
* refactor(gateway-client): move wire-client contract types to protocol-client-contract
The connectError addition pushed protocol-client.ts over the 700-line
max-lines gate; split the adapter-facing contract types into their own
module instead of suppressing.
* refactor(gateway-client): keep contract-internal option types unexported
Knip deadcode gates reject exported types with no importer; the connect
and close decision shapes are only referenced inside the contract module.
* chore(plugin-sdk): refresh gateway-runtime API baseline after rebase
* fix(gateway-client): preserve hello type after rebase
* test(gateway): support websocket upgrade rejection events
* test(gateway): expect connection errors in close info
* fix(gateway): keep prepared-suspension connects control-only
Address ClawSweeper review: node and worker connects stay refused while
suspension is prepared (only operator control connects pass), and the
CLI never issues another suspend prepare after its --wait deadline.