fix(velocity): 等待队列跟随服的启动进度，自动重试期间一直等并每分钟报进度，放弃或被停止时说明原因

plugins/README.md

@@ -168,7 +168,7 @@ What it does when routing is active:
 | ------- | -------- |
 | Backend registry | Polls `GET /api/v1/servers` every 15 s and reconciles Velocity's dynamic registry. A failed poll **keeps existing registrations** — a control-plane blip never deregisters live backends. The API advertises each backend Service's host-routable ClusterIP, avoiding cluster-DNS names on the host-run proxy. |
 | Join (`PlayerChooseInitialServerEvent`) | Resolves `subdomain.<root-domain>` and remembers the target, but every fresh connection still enters `login`. When the login gate requests its post-auth lobby transfer, Velocity re-checks link status: a ready remembered target is selected immediately; an asleep target is woken and queued from the lobby. |
-| Waiting queue | One scheduled drain every 2 s polls status once per distinct waited-on server; a waiter drops out on transfer, on the player leaving, or after a 120 s timeout. |
+| Waiting queue | One scheduled drain every 2 s polls status once per distinct waited-on server. A waiter stays while its server is on the way up (starting, or Failed inside the operator's restart backoff), hears a progress line each minute, and drops out on transfer, on the player leaving, when the start is given up (`startGaveUp`) or the server is stopped, after 120 s without an answer from felis-api, or at a one-hour backstop. |
 | Wake gate | The wake is `POST /api/v1/internal/servers/{name}/wake` keyed on the player's online-mode UUID. **403** (policy refused) tells the player and stops; **429** (wake already in flight) keeps waiting. |
 | Server-list ping (`ProxyPingEvent`) | Answers from the cached lifecycle view with a phase-aware MOTD (online / starting / sleeping) — **read-only, never wakes** anything. Mirroring each backend's own MOTD by background-pinging ready servers is a later slice. |
 | Join report (`ServerConnectedEvent`) | Reports real joins to a felis backend via `POST …/join-event`, so the reaper sees activity and the player is auto-added to the server allowlist. |