fix: settle fallback model billing and worldlabs key pool

app/(admin)/settings/admin-settings-client.tsx

@@ -1790,6 +1790,7 @@ export function AdminSettingsClient() {
   const [worldlabsKeyPoolConfig, setWorldlabsKeyPoolConfig] = useState(
     defaultWorldLabsKeyPoolConfig
   );
+  const [worldlabsApiKeysDraft, setWorldlabsApiKeysDraft] = useState("");
   const [threeDModelAliasConfig, setThreeDModelAliasConfig] = useState(
     defaultThreeDModelAliasConfig()
   );
@@ -5091,6 +5092,102 @@ export function AdminSettingsClient() {
     }
   };
 
+  const handleAddWorldlabs3dPoolKey = async () => {
+    try {
+      const trimmedName = worldlabs3dConfig.name.trim() || "World Labs Key";
+      const trimmedBaseUrl =
+        worldlabs3dConfig.baseUrl.trim() ||
+        getProviderDefaultBaseUrl("worldlabs-3d");
+      const trimmedApiKey = worldlabs3dConfig.apiKey.trim();
+
+      if (!trimmedApiKey) {
+        toast.error("请填写要加入 Key 池的 World Labs API Key");
+        return;
+      }
+
+      const response = await fetch("/api/worldlabs/key-pool/import", {
+        method: "POST",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify({
+          keys: [
+            {
+              apiKey: trimmedApiKey,
+              name: trimmedName,
+              baseUrl: trimmedBaseUrl,
+              isEnabled: worldlabs3dConfig.isEnabled,
+            },
+          ],
+        }),
+      });
+
+      const payload = await response.json().catch(() => ({}));
+      if (!response.ok || payload?.success === false) {
+        throw new Error(
+          String(payload?.error || payload?.message || "添加 World Labs Key 失败")
+        );
+      }
+
+      const importedCount = Number(payload?.data?.importedCount || 0);
+      const skippedCount = Number(payload?.data?.skippedCount || 0);
+      toast.success(
+        importedCount > 0
+          ? "World Labs Key 已加入池"
+          : skippedCount > 0
+            ? "这个 World Labs Key 已存在，已跳过重复添加"
+            : "World Labs Key 处理完成"
+      );
+      setWorldlabs3dConfig((prev) => ({ ...prev, apiKey: "" }));
+      mutateProviders();
+    } catch (error) {
+      toast.error(
+        error instanceof Error ? error.message : "添加 World Labs Key 失败"
+      );
+    }
+  };
+
+  const handleImportWorldlabs3dPoolKeys = async () => {
+    try {
+      const apiKeysText = worldlabsApiKeysDraft.trim();
+      if (!apiKeysText) {
+        toast.error("请先粘贴要批量导入的 World Labs API Key");
+        return;
+      }
+
+      const response = await fetch("/api/worldlabs/key-pool/import", {
+        method: "POST",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify({
+          apiKeysText,
+          namePrefix: worldlabs3dConfig.name.trim() || "WorldLabsKey",
+          baseUrl:
+            worldlabs3dConfig.baseUrl.trim() ||
+            getProviderDefaultBaseUrl("worldlabs-3d"),
+          isEnabled: worldlabs3dConfig.isEnabled,
+        }),
+      });
+
+      const payload = await response.json().catch(() => ({}));
+      if (!response.ok || payload?.success === false) {
+        throw new Error(
+          String(payload?.error || payload?.message || "批量导入 World Labs Key 失败")
+        );
+      }
+
+      const importedCount = Number(payload?.data?.importedCount || 0);
+      const skippedCount = Number(payload?.data?.skippedCount || 0);
+      toast.success(
+        `World Labs Key 导入完成：新增 ${importedCount} 个，跳过 ${skippedCount} 个`
+      );
+      setWorldlabsApiKeysDraft("");
+      setWorldlabs3dConfig((prev) => ({ ...prev, apiKey: "" }));
+      mutateProviders();
+    } catch (error) {
+      toast.error(
+        error instanceof Error ? error.message : "批量导入 World Labs Key 失败"
+      );
+    }
+  };
+
   const updateThreeDModelAliasEntries = (
     key: "tripoModels" | "worldModels",
     updater: (entries: ThreeDModelAliasEntry[]) => ThreeDModelAliasEntry[]
@@ -15071,9 +15168,37 @@ export function AdminSettingsClient() {
                   <code className="mx-1 rounded bg-muted px-1 py-0.5 text-[11px]">
                     /api/worldlabs/key-pool/import
                   </code>
-                  批量导入新 Key，保存到数据库系统设置。
+                  批量导入新 Key；后台管理员在本页面导入时不需要额外填写令牌。
                 </div>
               </div>
+              <div className="space-y-2 rounded-xl border border-dashed p-4">
+                <div className="flex flex-col gap-1 md:flex-row md:items-center md:justify-between">
+                  <div>
+                    <Label htmlFor="worldlabs3dApiKeysDraft">
+                      批量导入 Key
+                    </Label>
+                    <div className="text-xs text-muted-foreground">
+                      每行一个 World Labs API Key，导入时会自动跳过已存在或重复的
+                      Key。
+                    </div>
+                  </div>
+                  <Button
+                    type="button"
+                    variant="outline"
+                    onClick={handleImportWorldlabs3dPoolKeys}
+                  >
+                    <Upload className="mr-2 h-4 w-4" />
+                    批量导入
+                  </Button>
+                </div>
+                <Textarea
+                  id="worldlabs3dApiKeysDraft"
+                  value={worldlabsApiKeysDraft}
+                  onChange={(e) => setWorldlabsApiKeysDraft(e.target.value)}
+                  rows={5}
+                  placeholder={"wlt_xxxxxxxxx\nwlt_yyyyyyyyy\nwlt_zzzzzzzzz"}
+                />
+              </div>
               <div className="space-y-4 rounded-xl border p-4">
                 <div className="flex flex-col gap-3 md:flex-row md:items-center md:justify-between">
                   <div>
@@ -15191,9 +15316,14 @@ export function AdminSettingsClient() {
                   </span>
                 </div>
               </div>
-              <Button onClick={handleSaveWorldlabs3dConfig}>
+              <div className="flex flex-wrap gap-2">
-                <Save className="mr-2 h-4 w-4" /> 保存 World Labs 配置
+                <Button onClick={handleSaveWorldlabs3dConfig}>
-              </Button>
+                  <Save className="mr-2 h-4 w-4" /> 保存 World Labs 配置
+                </Button>
+                <Button variant="outline" onClick={handleAddWorldlabs3dPoolKey}>
+                  <Plus className="mr-2 h-4 w-4" /> 添加为新 Key
+                </Button>
+              </div>
             </CardContent>
           </Card>
 

app/(chat)/api/chat/route.ts

@@ -2592,6 +2592,20 @@ function resolveModelDisplayNameByModelId(
   return String(match?.model?.displayName || "");
 }
 
+function resolveModelRefByRuntimeModelId(
+  models: Awaited<ReturnType<typeof getEnabledAiModelsWithProvider>> | undefined,
+  modelId: string | undefined,
+  fallbackRef?: string,
+): string {
+  const normalizedModelId = String(modelId || "").trim();
+  if (!normalizedModelId) return fallbackRef || "";
+
+  const match = models?.find(
+    (item) => item.model.modelId === normalizedModelId || item.model.id === normalizedModelId,
+  );
+  return String(match?.model?.id || fallbackRef || normalizedModelId || "");
+}
+
 /**
  * 解析生图 Markdown 并保存图片记录到数据库
  * 支持三种格式：thumb|||url|||size、thumb$$url$$size、thumb|url|size
@@ -9403,7 +9417,11 @@ export async function POST(request: Request) {
                 id,
                 messageId,
                 userPrompt,
-                finalModelId,
+                resolveModelRefByRuntimeModelId(
+                  allModels,
+                  usedModelId,
+                  usedModelId === actualModelId ? finalModelId : undefined,
+                ),
                 {
                   sourceAssetIds: requestTargetResolution?.targetAssetIds,
                   sourceImageUrls: requestTargetResolution?.targetImageUrls,
@@ -9987,7 +10005,11 @@ export async function POST(request: Request) {
                 id,
                 messageId,
                 userPrompt,
-                finalModelId,
+                resolveModelRefByRuntimeModelId(
+                  allModels,
+                  usedModelId,
+                  usedModelId === actualModelId ? finalModelId : undefined,
+                ),
                 {
                   sourceAssetIds: requestTargetResolution?.targetAssetIds,
                   sourceImageUrls: requestTargetResolution?.targetImageUrls,
@@ -10384,7 +10406,11 @@ export async function POST(request: Request) {
                 id,
                 messageId,
                 userPrompt,
-                finalModelId,
+                resolveModelRefByRuntimeModelId(
+                  allModels,
+                  usedModelId,
+                  usedModelId === actualModelId ? finalModelId : undefined,
+                ),
                 {
                   sourceAssetIds: requestTargetResolution?.targetAssetIds,
                   sourceImageUrls: requestTargetResolution?.targetImageUrls,
@@ -11243,7 +11269,11 @@ export async function POST(request: Request) {
               id,
               messageId,
               userPrompt,
-              finalModelId,
+              resolveModelRefByRuntimeModelId(
+                allModels,
+                usedModelId,
+                usedModelId === actualModelId ? finalModelId : undefined,
+              ),
               {
                 sourceAssetIds: requestTargetResolution?.targetAssetIds,
                 sourceImageUrls: requestTargetResolution?.targetImageUrls,

app/api/worldlabs/key-pool/import/route.ts

@@ -4,6 +4,7 @@ import {
   getAiProvidersByType,
 } from "@/lib/db/queries";
 import { ChatSDKError } from "@/lib/errors";
+import { requireAdmin } from "@/lib/middleware/admin";
 import {
   sanitizeWorldLabsApiKey,
   sanitizeWorldLabsBaseUrl,
@@ -108,23 +109,34 @@ export async function POST(request: Request) {
   try {
     const dbConfig = await getWorldLabsKeyPoolConfig();
     const configuredToken = dbConfig.importToken || getConfiguredImportToken();
-    if (!configuredToken) {
+    const requestToken = readImportToken(request);
-      return Response.json(
+
-        {
+    let authorizedByAdmin = false;
-          success: false,
+    try {
-          error:
+      await requireAdmin();
-            "服务端未配置 World Labs key 池导入令牌，无法使用专用导入接口",
+      authorizedByAdmin = true;
-        },
+    } catch (_error) {
-        { status: 503 }
+      authorizedByAdmin = false;
-      );
     }
 
-    const requestToken = readImportToken(request);
+    if (!authorizedByAdmin) {
-    if (!requestToken || requestToken !== configuredToken) {
+      if (!configuredToken) {
-      return Response.json(
+        return Response.json(
-        { success: false, error: "导入令牌无效" },
+          {
-        { status: 401 }
+            success: false,
-      );
+            error:
+              "服务端未配置 World Labs key 池导入令牌，无法使用专用导入接口",
+          },
+          { status: 503 }
+        );
+      }
+
+      if (!requestToken || requestToken !== configuredToken) {
+        return Response.json(
+          { success: false, error: "导入令牌无效" },
+          { status: 401 }
+        );
+      }
     }
 
     const rawBody = await request.json().catch(() => ({}));

lib/worldlabs/server.ts

@@ -7,6 +7,7 @@ import {
 import type { WorldLabsProviderConfig } from "./types";
 
 const DEFAULT_WORLDLABS_BASE_URL = "https://api.worldlabs.ai";
+let worldLabsProviderCursor = 0;
 
 export function sanitizeWorldLabsApiKey(value: string): string {
   return String(value || "")
@@ -73,9 +74,21 @@ export async function getWorldLabsProviderConfig(
 ): Promise<WorldLabsProviderConfig> {
   const providers = await getWorldLabsProviderConfigs();
   const preferredId = String(preferredProviderId || "").trim();
-  const worldLabsProvider = preferredId
+  if (preferredId) {
-    ? providers.find((item) => item.providerId === preferredId) || null
+    const matchedProvider =
-    : providers[0] || null;
+      providers.find((item) => item.providerId === preferredId) || null;
+    if (matchedProvider) {
+      return matchedProvider;
+    }
+  }
+
+  const worldLabsProvider =
+    providers.length > 0
+      ? providers[worldLabsProviderCursor % providers.length]
+      : null;
+  if (providers.length > 0) {
+    worldLabsProviderCursor = (worldLabsProviderCursor + 1) % providers.length;
+  }
 
   if (worldLabsProvider) {
     return worldLabsProvider;