fix: 消除并发测试中的 tool 导出竞争和 SQLite 目录碰撞

tests/server/routes/providers.test.ts

@@ -1,6 +1,6 @@
 import type Database from "bun:sqlite";
 
-import { describe, expect, mock, test } from "bun:test";
+import { describe, expect, test } from "bun:test";
 
 import type { Provider, ProviderOption, RuntimeMode } from "../../../src/shared/api";
 
@@ -8,16 +8,11 @@ import { createModel } from "../../../src/server/db/models";
 import { createProvider } from "../../../src/server/db/providers";
 import { createNoopLogger } from "../../../src/server/logger";
 import { createMigratedMemoryTestDatabase } from "../../helpers";
+import "../mocks/ai";
 
 const MODE: RuntimeMode = "test";
 const LOG = createNoopLogger();
 
-void mock.module("ai", () => ({
-  createProviderRegistry: () => ({
-    languageModel: () => ({}),
-  }),
-}));
-
 async function createProviderViaHandler(req: Request, db: Database): Promise<Response> {
   const { handleCreateProvider: h } = await import("../../../src/server/routes/providers/create");
   return h(req, db, MODE, LOG);