D5 cleanup, frontend and backend in one commit: removes the six
config_validate::* statuses that never receive a backend send and the
set_config::ok send (enum variants, golden list 41→34, send point in
restart_clash_core), their frontend handlers, and the five i18n keys only
those handlers used. The notice table is now typed as a Record over the
generated NoticeStatus union, so a status without a frontend entry fails
to compile. The info status (sent by the silent updater for breaking
change notices, previously dropped with a console warning) now shows an
info toast — the one deliberate behavior delta.
Adds src/services/bus (the only listen/emit site: one handler per contract
event plus the frontend-internal test-all event) and the React
context/reducer app store. Migrates the five scattered subscriptions
(layout events, pending failures, proxy refresh, profile update/timer,
test-all), deletes the old glue (events.ts, use-listen, use-layout-events,
LoadingCacheProvider), moves run state into the store, and adds an
architecture gate script wired into CI. Behavior is unchanged; the
run-state query's poll/focus safety net is preserved by the store
provider.
Adds a zero-dependency `frontend-contract` bin that serializes the real
NoticeStatus variants and FrontendEvent payloads, scripts/gen-contract.mjs
which emits the committed src/services/contract.ts, and a CI job that
regenerates it and fails on a non-empty diff. events.ts now derives its
event map from the generated contract instead of hand-typed shapes.
Tunglies