fix(failover): improve cache cleanup for provider health and circuit breaker

- Use removeQueries instead of invalidateQueries when stopping proxy to
  completely clear health and circuit breaker caches
- Clear provider health and circuit breaker caches when removing from
  failover queue
- Refresh failover queue after drag-sort since queue order depends on
  sort_index
- Only show health badge when provider is in failover queue

src/components/providers/ProviderCard.tsx

@@ -183,7 +183,8 @@ export function ProviderCard({
           ? "hover:border-emerald-500/50"
           : "hover:border-border-active",
         // 当前激活的供应商边框样式
-        shouldUseGreen && "border-emerald-500/60 shadow-sm shadow-emerald-500/10",
+        shouldUseGreen &&
+          "border-emerald-500/60 shadow-sm shadow-emerald-500/10",
         shouldUseBlue && "border-blue-500/60 shadow-sm shadow-blue-500/10",
         !isActiveProvider && "hover:shadow-sm",
         dragHandleProps?.isDragging &&
@@ -233,7 +234,7 @@ export function ProviderCard({
               </h3>
 
               {/* 健康状态徽章 */}
-              {isProxyRunning && health && (
+              {isProxyRunning && isInFailoverQueue && health && (
                 <ProviderHealthBadge
                   consecutiveFailures={health.consecutive_failures}
                 />

src/hooks/useDragSort.ts

@@ -75,6 +75,11 @@ export function useDragSort(providers: Record<string, Provider>, appId: AppId) {
           queryKey: ["providers", appId],
         });
 
+        // 刷新故障转移队列（因为队列顺序依赖 sort_index）
+        await queryClient.invalidateQueries({
+          queryKey: ["failoverQueue", appId],
+        });
+
         // 更新托盘菜单以反映新的排序（失败不影响主操作）
         try {
           await providersApi.updateTrayMenu();

src/hooks/useProxyStatus.ts

@@ -73,8 +73,10 @@ export function useProxyStatus() {
       );
       queryClient.invalidateQueries({ queryKey: ["proxyStatus"] });
       queryClient.invalidateQueries({ queryKey: ["proxyTakeoverStatus"] });
-      // 清除所有供应商健康状态缓存（后端已清空数据库记录）
-      queryClient.invalidateQueries({ queryKey: ["providerHealth"] });
+      // 彻底删除所有供应商健康状态缓存（后端已清空数据库记录）
+      queryClient.removeQueries({ queryKey: ["providerHealth"] });
+      // 彻底删除所有熔断器统计缓存（代理停止后熔断器状态已重置）
+      queryClient.removeQueries({ queryKey: ["circuitBreakerStats"] });
       // 注意：故障转移队列和开关状态会保留，不需要刷新
     },
     onError: (error: Error) => {

src/lib/query/failover.ts

@@ -162,6 +162,18 @@ export function useRemoveFromFailoverQueue() {
       queryClient.invalidateQueries({
         queryKey: ["providers", variables.appType],
       });
+      // 清除该供应商的健康状态缓存（退出队列后不再需要健康监控）
+      queryClient.invalidateQueries({
+        queryKey: ["providerHealth", variables.providerId, variables.appType],
+      });
+      // 清除该供应商的熔断器统计缓存
+      queryClient.invalidateQueries({
+        queryKey: [
+          "circuitBreakerStats",
+          variables.providerId,
+          variables.appType,
+        ],
+      });
     },
   });
 }