fix(web): clarify unreachable model status and wording

- Show unreachable status in model cards instead of API key preview when service is down

- Keep API key placeholder preview in model settings whenever an API key is already saved

- Rename model status wording from configured to available across backend, frontend, and i18n

- Update backend model status tests to match renamed status semantics

web/backend/api/model_status.go

@@ -16,7 +16,7 @@ import (
 const modelProbeTimeout = 800 * time.Millisecond
 
 const (
-	modelStatusConfigured   = "configured"
+	modelStatusAvailable    = "available"
 	modelStatusUnconfigured = "unconfigured"
 	modelStatusUnreachable  = "unreachable"
 )
@@ -60,11 +60,11 @@ func modelConfigurationStatus(m *config.ModelConfig) modelConfigurationSummary {
 	}
 	if requiresRuntimeProbe(m) {
 		if probeLocalModelAvailability(m) {
-			return modelConfigurationSummary{Available: true, Status: modelStatusConfigured}
+			return modelConfigurationSummary{Available: true, Status: modelStatusAvailable}
 		}
 		return modelConfigurationSummary{Available: false, Status: modelStatusUnreachable}
 	}
-	return modelConfigurationSummary{Available: true, Status: modelStatusConfigured}
+	return modelConfigurationSummary{Available: true, Status: modelStatusAvailable}
 }
 
 func requiresRuntimeProbe(m *config.ModelConfig) bool {

web/backend/api/models_test.go

@@ -138,17 +138,17 @@ func TestHandleListModels_AvailabilityUsesRuntimeProbesForLocalModels(t *testing
 	if gotStatus["openai-oauth"] != modelStatusUnconfigured {
 		t.Fatalf("openai oauth model status = %q, want %q", gotStatus["openai-oauth"], modelStatusUnconfigured)
 	}
-	if gotStatus["vllm-local"] != modelStatusConfigured {
+	if gotStatus["vllm-local"] != modelStatusAvailable {
-		t.Fatalf("vllm local model status = %q, want %q", gotStatus["vllm-local"], modelStatusConfigured)
+		t.Fatalf("vllm local model status = %q, want %q", gotStatus["vllm-local"], modelStatusAvailable)
 	}
-	if gotStatus["ollama-default"] != modelStatusConfigured {
+	if gotStatus["ollama-default"] != modelStatusAvailable {
-		t.Fatalf("ollama default model status = %q, want %q", gotStatus["ollama-default"], modelStatusConfigured)
+		t.Fatalf("ollama default model status = %q, want %q", gotStatus["ollama-default"], modelStatusAvailable)
 	}
-	if gotStatus["vllm-remote"] != modelStatusConfigured {
+	if gotStatus["vllm-remote"] != modelStatusAvailable {
-		t.Fatalf("remote vllm model status = %q, want %q", gotStatus["vllm-remote"], modelStatusConfigured)
+		t.Fatalf("remote vllm model status = %q, want %q", gotStatus["vllm-remote"], modelStatusAvailable)
 	}
-	if gotStatus["copilot-gpt-5.4"] != modelStatusConfigured {
+	if gotStatus["copilot-gpt-5.4"] != modelStatusAvailable {
-		t.Fatalf("copilot model status = %q, want %q", gotStatus["copilot-gpt-5.4"], modelStatusConfigured)
+		t.Fatalf("copilot model status = %q, want %q", gotStatus["copilot-gpt-5.4"], modelStatusAvailable)
 	}
 	if len(openAIProbes) != 1 || openAIProbes[0] != "http://127.0.0.1:8000/v1|custom-model|" {
 		t.Fatalf("openAI probes = %#v, want only local vllm probe", openAIProbes)

web/frontend/src/api/models.ts

@@ -21,7 +21,7 @@ export interface ModelInfo {
   extra_body?: Record<string, unknown>
   // Meta
   available: boolean
-  status?: "configured" | "unconfigured" | "unreachable"
+  status?: "available" | "unconfigured" | "unreachable"
   is_default: boolean
   is_virtual: boolean
 }

web/frontend/src/components/models/edit-model-sheet.tsx

@@ -133,9 +133,10 @@ export function EditModelSheet({
   }
 
   const isOAuth = model?.auth_method === "oauth"
-  const apiKeyPlaceholder = model?.available
+  const hasSavedAPIKey = Boolean(model?.api_key)
+  const apiKeyPlaceholder = hasSavedAPIKey
     ? maskedSecretPlaceholder(
-        model.api_key,
+        model?.api_key ?? "",
         t("models.field.apiKeyPlaceholderSet"),
       )
     : t("models.field.apiKeyPlaceholder")
@@ -161,7 +162,7 @@ export function EditModelSheet({
               <Field
                 label={t("models.field.apiKey")}
                 hint={
-                  model?.available ? t("models.edit.apiKeyHint") : undefined
+                  hasSavedAPIKey ? t("models.edit.apiKeyHint") : undefined
                 }
               >
                 <KeyInput

web/frontend/src/components/models/model-card.tsx

@@ -28,7 +28,7 @@ export function ModelCard({
 }: ModelCardProps) {
   const { t } = useTranslation()
   const isOAuth = model.auth_method === "oauth"
-  const status = model.status ?? (model.available ? "configured" : "unconfigured")
+  const status = model.status ?? (model.available ? "available" : "unconfigured")
   const statusLabel = t(`models.status.${status}`)
   const canSetDefault =
     model.available && !model.is_default && !model.is_virtual
@@ -49,7 +49,7 @@ export function ModelCard({
               "mt-0.5 h-2 w-2 shrink-0 rounded-full",
               model.is_default
                 ? "bg-green-400 shadow-[0_0_0_2px_rgba(74,222,128,0.35)]"
-                : status === "configured"
+                : status === "available"
                   ? "bg-green-500"
                   : status === "unreachable"
                     ? "bg-amber-500"
@@ -127,7 +127,7 @@ export function ModelCard({
           <span className="text-muted-foreground bg-muted rounded px-1.5 py-0.5 text-[10px] font-medium">
             OAuth
           </span>
-        ) : model.api_key ? (
+        ) : status === "available" && model.api_key ? (
           <span className="text-muted-foreground/70 flex items-center gap-1 font-mono text-[11px]">
             <IconKey className="size-3" />
             {model.api_key}

web/frontend/src/i18n/locales/en.json

@@ -170,7 +170,7 @@
     "noDefaultHintPrefix": "No default model set yet. Click",
     "noDefaultHintSuffix": "to set one.",
     "status": {
-      "configured": "Configured",
+      "available": "Available",
       "unconfigured": "Not configured",
       "unreachable": "Service unreachable"
     },

web/frontend/src/i18n/locales/zh.json

@@ -170,7 +170,7 @@
     "noDefaultHintPrefix": "尚未设置默认模型，点击",
     "noDefaultHintSuffix": "设为默认。",
     "status": {
-      "configured": "已配置",
+      "available": "可用",
       "unconfigured": "未配置",
       "unreachable": "服务不可达"
     },