fix: 模型管理审查修复与归档

- 修复 registry 测试 ai mock 缺失 createProviderRegistry 导出
- 新增 POST /api/providers/test 支持未保存供应商配置连通性测试
- 供应商表单新增测试连接按钮，新建默认 openai-compatible
- 连通性测试按 ok 展示成功/失败，不再统一 success 样式
- 模型表单新建时也可测试供应商连接
- 模型页使用独立 provider 列表避免分页/搜索影响
- 移除模型管理组件内联 style
- 新增 ProviderTestResultResponse 共享响应类型
- 新增 bun run format:check 脚本
- 补充关键测试覆盖（删除关联、连通性、默认类型、表单测试）
- 更新 docs/user/usage.md、docs/development/*、design.md、tasks.md
- 归档 change 至 openspec/changes/archive/2026-05-29-add-model-management

tests/server/routes/providers.test.ts

@@ -1,13 +1,24 @@
 import type Database from "bun:sqlite";
 
-import { describe, expect, test } from "bun:test";
+import { describe, expect, mock, test } from "bun:test";
 
 import type { Provider, RuntimeMode } from "../../../src/shared/api";
 
+import { createModel } from "../../../src/server/db/models";
+import { createProvider } from "../../../src/server/db/providers";
 import { createMigratedMemoryTestDatabase } from "../../helpers";
 
 const MODE: RuntimeMode = "test";
 
+let generateTextImpl: (_opts: unknown) => unknown = () => ({});
+
+void mock.module("ai", () => ({
+  createProviderRegistry: () => ({
+    languageModel: () => ({}),
+  }),
+  generateText: mock((opts: unknown) => generateTextImpl(opts)),
+}));
+
 async function createProviderViaHandler(req: Request, db: Database): Promise<Response> {
   const { handleCreateProvider: h } = await import("../../../src/server/routes/providers/create");
   return h(req, db, MODE);
@@ -49,7 +60,15 @@ async function listProvidersViaHandler(req: Request, db: Database): Promise<Resp
   return h(req, db, MODE);
 }
 
-import { createProvider } from "../../../src/server/db/providers";
+async function testProviderConfigViaHandler(req: Request, db: Database): Promise<Response> {
+  const { handleTestProviderConfig: h } = await import("../../../src/server/routes/providers/test");
+  return h(req, db, MODE);
+}
+
+async function testProviderViaHandler(req: Request, db: Database): Promise<Response> {
+  const { handleTestProvider: h } = await import("../../../src/server/routes/providers/test");
+  return h(req, db, MODE);
+}
 
 async function updateProviderViaHandler(req: Request, db: Database): Promise<Response> {
   const { handleUpdateProvider: h } = await import("../../../src/server/routes/providers/update");
@@ -167,6 +186,62 @@ describe("供应商 API 路由", () => {
     });
   });
 
+  test("DELETE /api/providers/:id 存在关联模型时返回 409", async () => {
+    await withRouteDb(async (db) => {
+      const provider = createTestProvider(db, "有关联模型");
+      const modelResult = createModel(db, {
+        capabilities: ["text"],
+        modelId: "gpt-4o",
+        name: "GPT-4o",
+        providerId: provider.id,
+      });
+      if ("error" in modelResult) throw new Error(modelResult.error);
+
+      const req = new Request(`http://localhost/api/providers/${provider.id}`, { method: "DELETE" });
+      const res = await deleteProviderViaHandler(req, db);
+      expect(res.status).toBe(409);
+      const body = (await res.json()) as { error: string };
+      expect(body.error).toContain("存在模型");
+    });
+  });
+
+  test("POST /api/providers/:id/test 返回连通性失败结果", async () => {
+    await withRouteDb(async (db) => {
+      generateTextImpl = () => {
+        throw new Error("bad key");
+      };
+      const provider = createTestProvider(db, "测试失败供应商");
+
+      const req = new Request(`http://localhost/api/providers/${provider.id}/test`, { method: "POST" });
+      const res = await testProviderViaHandler(req, db);
+      expect(res.status).toBe(200);
+      const body = (await res.json()) as { providerTestResponse: { message: string; ok: boolean } };
+      expect(body.providerTestResponse.ok).toBe(false);
+      expect(body.providerTestResponse.message).toContain("连接失败");
+      generateTextImpl = () => ({});
+    });
+  });
+
+  test("POST /api/providers/test 使用表单配置测试连通性", async () => {
+    await withRouteDb(async (db) => {
+      generateTextImpl = () => ({});
+      const req = new Request("http://localhost/api/providers/test", {
+        body: JSON.stringify({
+          apiKey: "sk-test",
+          baseUrl: "https://api.openai.com/v1",
+          name: "OpenAI",
+          type: "openai",
+        }),
+        headers: { "Content-Type": "application/json" },
+        method: "POST",
+      });
+      const res = await testProviderConfigViaHandler(req, db);
+      expect(res.status).toBe(200);
+      const body = (await res.json()) as { providerTestResponse: { message: string; ok: boolean } };
+      expect(body.providerTestResponse).toEqual({ message: "连接成功", ok: true });
+    });
+  });
+
   test("创建同名供应商返回 409", async () => {
     await withRouteDb(async (db) => {
       const req1 = new Request("http://localhost/api/providers", {