feat: restore model health check (stream check) UI

Re-enable the stream check feature that was hidden in v3.11.0.
All backend code, database schema, and i18n keys were preserved;
only the frontend UI needed uncommenting across 4 files.
OpenCode and OpenClaw are excluded as the backend does not support them.

src/components/providers/ProviderActions.tsx

@@ -3,12 +3,12 @@ import {
   Check,
   Copy,
   Edit,
-  // Loader2, // Hidden: stream check feature disabled
+  Loader2,
   Minus,
   Play,
   Plus,
   Terminal,
-  // TestTube2, // Hidden: stream check feature disabled
+  TestTube2,
   Trash2,
   Zap,
 } from "lucide-react";
@@ -45,13 +45,13 @@ export function ProviderActions({
   appId,
   isCurrent,
   isInConfig = false,
-  isTesting: _isTesting, // Hidden: stream check feature disabled
+  isTesting,
   isProxyTakeover = false,
   isOmo = false,
   onSwitch,
   onEdit,
   onDuplicate,
-  onTest: _onTest, // Hidden: stream check feature disabled
+  onTest,
   onConfigureUsage,
   onDelete,
   onRemoveFromConfig,
@@ -246,7 +246,6 @@ export function ProviderActions({
           <Copy className="h-4 w-4" />
         </Button>
 
-        {/* Hidden: stream check feature disabled
         {onTest && (
           <Button
             size="icon"
@@ -263,7 +262,6 @@ export function ProviderActions({
             )}
           </Button>
         )}
-        */}
 
         <Button
           size="icon"

src/components/providers/ProviderList.tsx

@@ -25,7 +25,7 @@ import {
   useOpenClawLiveProviderIds,
   useOpenClawDefaultModel,
 } from "@/hooks/useOpenClaw";
-// import { useStreamCheck } from "@/hooks/useStreamCheck"; // 测试功能已隐藏
+import { useStreamCheck } from "@/hooks/useStreamCheck";
 import { ProviderCard } from "@/components/providers/ProviderCard";
 import { ProviderEmptyState } from "@/components/providers/ProviderEmptyState";
 import {
@@ -86,6 +86,7 @@ export function ProviderList({
   onSetAsDefault,
 }: ProviderListProps) {
   const { t } = useTranslation();
+  const { checkProvider, isChecking } = useStreamCheck(appId);
   const { sortedProviders, sensors, handleDragEnd } = useDragSort(
     providers,
     appId,
@@ -176,6 +177,13 @@ export function ProviderList({
   const [isSearchOpen, setIsSearchOpen] = useState(false);
   const searchInputRef = useRef<HTMLInputElement>(null);
 
+  const handleTest = useCallback(
+    (provider: Provider) => {
+      checkProvider(provider.id, provider.name);
+    },
+    [checkProvider],
+  );
+
   // Import current live config as default provider
   const queryClient = useQueryClient();
   const importMutation = useMutation({
@@ -306,7 +314,12 @@ export function ProviderList({
                 onConfigureUsage={onConfigureUsage}
                 onOpenWebsite={onOpenWebsite}
                 onOpenTerminal={onOpenTerminal}
-                isTesting={false} // isChecking(provider.id) - 测试功能已隐藏
+                onTest={
+                  appId !== "opencode" && appId !== "openclaw"
+                    ? handleTest
+                    : undefined
+                }
+                isTesting={isChecking(provider.id)}
                 isProxyRunning={isProxyRunning}
                 isProxyTakeover={isProxyTakeover}
                 isAutoFailoverEnabled={isFailoverModeActive}

src/components/providers/forms/ProviderAdvancedConfig.tsx

@@ -3,7 +3,7 @@ import { useState, useEffect } from "react";
 import {
   ChevronDown,
   ChevronRight,
-  // FlaskConical, // Hidden: stream check feature disabled
+  FlaskConical,
   Globe,
   Coins,
   Eye,
@@ -87,16 +87,15 @@ function parseProxyUrl(url: string): Partial<ProviderProxyConfig> {
 }
 
 export function ProviderAdvancedConfig({
-  testConfig: _testConfig, // Hidden: stream check feature disabled
+  testConfig,
   proxyConfig,
   pricingConfig,
-  onTestConfigChange: _onTestConfigChange, // Hidden: stream check feature disabled
+  onTestConfigChange,
   onProxyConfigChange,
   onPricingConfigChange,
 }: ProviderAdvancedConfigProps) {
   const { t } = useTranslation();
-  // Hidden: stream check feature disabled
-  // const [isTestConfigOpen, setIsTestConfigOpen] = useState(testConfig.enabled);
+  const [isTestConfigOpen, setIsTestConfigOpen] = useState(testConfig.enabled);
   const [isProxyConfigOpen, setIsProxyConfigOpen] = useState(
     proxyConfig.enabled,
   );
@@ -111,10 +110,9 @@ export function ProviderAdvancedConfig({
   // 标记是否为用户主动输入（用于区分外部更新和用户输入）
   const [isUserTyping, setIsUserTyping] = useState(false);
 
-  // Hidden: stream check feature disabled
-  // useEffect(() => {
-  //   setIsTestConfigOpen(testConfig.enabled);
-  // }, [testConfig.enabled]);
+  useEffect(() => {
+    setIsTestConfigOpen(testConfig.enabled);
+  }, [testConfig.enabled]);
 
   // 同步外部 proxyConfig.enabled 变化到展开状态
   useEffect(() => {
@@ -168,7 +166,6 @@ export function ProviderAdvancedConfig({
 
   return (
     <div className="space-y-4">
-      {/* Hidden: stream check feature disabled — model test config panel
       <div className="rounded-lg border border-border/50 bg-muted/20">
         <button
           type="button"
@@ -344,7 +341,6 @@ export function ProviderAdvancedConfig({
           </div>
         </div>
       </div>
-      */}
 
       {/* 代理配置 */}
       <div className="rounded-lg border border-border/50 bg-muted/20">

src/components/settings/SettingsPage.tsx

@@ -8,6 +8,7 @@ import {
   Cloud,
   ScrollText,
   HardDriveDownload,
+  FlaskConical,
 } from "lucide-react";
 import { toast } from "sonner";
 import {
@@ -38,8 +39,7 @@ import { BackupListSection } from "@/components/settings/BackupListSection";
 import { WebdavSyncSection } from "@/components/settings/WebdavSyncSection";
 import { AboutSection } from "@/components/settings/AboutSection";
 import { ProxyTabContent } from "@/components/settings/ProxyTabContent";
-// Hidden: stream check feature disabled
-// import { ModelTestConfigPanel } from "@/components/usage/ModelTestConfigPanel";
+import { ModelTestConfigPanel } from "@/components/usage/ModelTestConfigPanel";
 import { UsageDashboard } from "@/components/usage/UsageDashboard";
 import { LogConfigPanel } from "@/components/settings/LogConfigPanel";
 import { useSettings } from "@/hooks/useSettings";
@@ -384,6 +384,28 @@ export function SettingsPage({
                         </AccordionContent>
                       </AccordionItem>
 
+                      <AccordionItem
+                        value="test"
+                        className="rounded-xl glass-card overflow-hidden"
+                      >
+                        <AccordionTrigger className="px-6 py-4 hover:no-underline hover:bg-muted/50 data-[state=open]:bg-muted/50">
+                          <div className="flex items-center gap-3">
+                            <FlaskConical className="h-5 w-5 text-emerald-500" />
+                            <div className="text-left">
+                              <h3 className="text-base font-semibold">
+                                {t("modelTest.title")}
+                              </h3>
+                              <p className="text-sm text-muted-foreground font-normal">
+                                {t("modelTest.description")}
+                              </p>
+                            </div>
+                          </div>
+                        </AccordionTrigger>
+                        <AccordionContent className="px-6 pb-6 pt-4 border-t border-border/50">
+                          <ModelTestConfigPanel />
+                        </AccordionContent>
+                      </AccordionItem>
+
                       <AccordionItem
                         value="logConfig"
                         className="rounded-xl glass-card overflow-hidden"