fix: stabilize Codex continuation and proxy retry recovery / 修复 Codex 续传与代理重试稳定性 (#257)

* wip: preserve local changes before upstream merge

* Improve proxy routing stability and add stable-first strategy

* Sync explicit-group routing strategy to eligible source routes

* Fix proxy retry and runtime health review issues

* fix: make proxy channel retry attempts configurable

* fix: harden proxy retry recovery and bookkeeping

* fix: address pr 257 review comments

---------

Co-authored-by: Cita <juricek.chen@gmail.com>

src/web/index.css

@@ -2092,7 +2092,8 @@ body {
 }
 
 .site-balance-inline {
-  display: inline-flex;
+  display: flex;
+  width: 100%;
   flex-wrap: wrap;
   align-items: baseline;
   gap: 6px;

src/web/pages/TokenRoutes.tsx

@@ -24,6 +24,10 @@ import {
 } from './helpers/routeMissingTokenHints.js';
 import { buildVisibleRouteList } from './helpers/routeListVisibility.js';
 import { buildZeroChannelPlaceholderRoutes } from './helpers/zeroChannelRoutes.js';
+import {
+  getRouteRoutingStrategyLabel,
+  normalizeRouteRoutingStrategyValue,
+} from './token-routes/routingStrategy.js';
 
 import type {
   RouteSortBy,
@@ -89,18 +93,6 @@ const EMPTY_ROUTE_FORM: RouteEditorForm = {
   advancedOpen: false,
 };
 
-function normalizeRouteRoutingStrategyValue(value?: RouteRoutingStrategy | null): RouteRoutingStrategy {
-  if (value === 'round_robin' || value === 'stable_first') return value;
-  return 'weighted';
-}
-
-function getRouteRoutingStrategyLabel(value?: RouteRoutingStrategy | null): string {
-  const strategy = normalizeRouteRoutingStrategyValue(value);
-  if (strategy === 'round_robin') return tr('轮询');
-  if (strategy === 'stable_first') return tr('稳定优先');
-  return tr('权重随机');
-}
-
 function getRouteRoutingStrategySuccessMessage(value: RouteRoutingStrategy): string {
   if (value === 'round_robin') return '已切换为轮询策略';
   if (value === 'stable_first') return '已切换为稳定优先策略';

src/web/pages/token-routes/RouteCard.tsx

@@ -28,6 +28,10 @@ import type {
 } from './types.js';
 import type { RouteCandidateView, RouteTokenOption } from '../helpers/routeModelCandidatesIndex.js';
 import { SortableChannelRow } from './SortableChannelRow.js';
+import {
+  getRouteRoutingStrategyLabel,
+  normalizeRouteRoutingStrategyValue,
+} from './routingStrategy.js';
 import {
   isRouteExactModel,
   isExplicitGroupRoute,
@@ -76,18 +80,6 @@ type RouteCardProps = {
   onToggleSourceGroup: (groupKey: string) => void;
 };
 
-function normalizeRoutingStrategy(value?: RouteRoutingStrategy | null): RouteRoutingStrategy {
-  if (value === 'round_robin' || value === 'stable_first') return value;
-  return 'weighted';
-}
-
-function getRoutingStrategyLabel(value?: RouteRoutingStrategy | null): string {
-  const strategy = normalizeRoutingStrategy(value);
-  if (strategy === 'round_robin') return tr('轮询');
-  if (strategy === 'stable_first') return tr('稳定优先');
-  return tr('权重随机');
-}
-
 function AnimatedCollapseSection({ open, children }: { open: boolean; children: ReactNode }) {
   const presence = useAnimatedVisibility(open, 220);
   if (!presence.shouldRender) return null;
@@ -139,7 +131,7 @@ function RouteCardInner({
   const readOnlyRoute = route.kind === 'zero_channel' || route.readOnly === true || route.isVirtual === true;
   const channelManagementDisabled = explicitGroupRoute;
   const title = resolveRouteTitle(route);
-  const routingStrategy = normalizeRoutingStrategy(route.routingStrategy);
+  const routingStrategy = normalizeRouteRoutingStrategyValue(route.routingStrategy);
   const routingStrategyOptions = [
     {
       value: 'weighted',
@@ -252,7 +244,7 @@ function RouteCardInner({
             </span>
           ) : (
             <span className="badge badge-muted" style={{ fontSize: 10, flexShrink: 0 }}>
-              {getRoutingStrategyLabel(routingStrategy)}
+              {getRouteRoutingStrategyLabel(routingStrategy)}
             </span>
           )}
 
@@ -394,7 +386,7 @@ function RouteCardInner({
 
       {explicitGroupRoute ? (
         <div style={{ fontSize: 12, color: 'var(--color-text-muted)', marginBottom: 10 }}>
-          {tr('该群组会将多个来源模型聚合为一个对外模型名；通道信息继承自来源模型，当前仅支持查看，不支持直接维护。')}
+          {tr('该群组会将多个来源模型聚合为一个对外模型名；当前策略以群组设置为准，来源模型会尽量跟随同步，但已单独自定义或被其他群组复用的来源模型不会被覆盖。')}
         </div>
       ) : !exactRoute ? (
         <div style={{ fontSize: 12, color: 'var(--color-text-muted)', marginBottom: 10 }}>

src/web/pages/token-routes/routingStrategy.ts

@@ -0,0 +1,14 @@
+import { tr } from '../../i18n.js';
+import type { RouteRoutingStrategy } from './types.js';
+
+export function normalizeRouteRoutingStrategyValue(value?: RouteRoutingStrategy | null): RouteRoutingStrategy {
+  if (value === 'round_robin' || value === 'stable_first') return value;
+  return 'weighted';
+}
+
+export function getRouteRoutingStrategyLabel(value?: RouteRoutingStrategy | null): string {
+  const strategy = normalizeRouteRoutingStrategyValue(value);
+  if (strategy === 'round_robin') return tr('轮询');
+  if (strategy === 'stable_first') return tr('稳定优先');
+  return tr('权重随机');
+}