refactor: 简化模型管理，移除启用/禁用，优化测试和布局

- 移除供应商/模型启用禁用能力，清理DB schema/migration/API/前端
- 供应商测试改为Base URL连通性+/models探测
- 新增POST /api/models/test模型连接测试
- 新增GET /api/providers/options专用供应商选项接口
- 统一工具栏为ModelsToolbar，参考项目管理布局
- 模型弹窗优化：默认能力、响应式3列标签、并排数值
- 前后端正整数校验、供应商下拉loading/error/empty状态
- 表格列宽统一，操作列/名称列固定宽度

tests/web/hooks/use-models.test.ts

@@ -3,10 +3,9 @@ import { describe, expect, test } from "bun:test";
 import {
   createModel,
   deleteModel,
-  disableModel,
-  enableModel,
   fetchModel,
   fetchModelList,
+  testModelConnection,
   updateModel,
 } from "../../../src/web/hooks/use-models";
 import { installFetchMock, jsonResponse } from "../test-utils";
@@ -15,7 +14,6 @@ const MODEL = {
   capabilities: ["text"] as Array<"text">,
   contextLength: null,
   createdAt: "2024-01-01T00:00:00.000Z",
-  enabled: true,
   id: "m1",
   maxOutputTokens: null,
   modelId: "gpt-4o",
@@ -50,7 +48,7 @@ describe("use-models request helpers", () => {
     expect(calls[0]?.url).toContain("keyword=GPT");
   });
 
-  test("模型 CRUD 与 enable/disable 使用正确 method、URL 与 body", async () => {
+  test("模型 CRUD 使用正确 method、URL 与 body", async () => {
     const calls = installFetchMock((call) => {
       if (call.method === "DELETE") return new Response(null, { status: 204 });
       return jsonResponse(
@@ -66,16 +64,12 @@ describe("use-models request helpers", () => {
       providerId: "pv1",
     });
     await updateModel("m1", { name: "GPT-4o Mini" });
-    await enableModel("m1");
-    await disableModel("m1");
     await deleteModel("m1");
     await fetchModel("m1");
 
     expect(calls.map((call) => `${call.method} ${call.url}`)).toEqual([
       "POST /api/models",
       "PATCH /api/models/m1",
-      "POST /api/models/m1/enable",
-      "POST /api/models/m1/disable",
       "DELETE /api/models/m1",
       "GET /api/models/m1",
     ]);
@@ -102,4 +96,16 @@ describe("use-models request helpers", () => {
 
     await expectRejectsWithMessage(() => fetchModel("m-missing"), "HTTP 500");
   });
+
+  test("testModelConnection 调用正确 URL 和 body", async () => {
+    const calls = installFetchMock(() => jsonResponse({ modelTestResponse: { message: "模型连接成功", ok: true } }));
+
+    const result = await testModelConnection({ modelId: "gpt-4o", providerId: "pv1" });
+
+    expect(result.ok).toBe(true);
+    expect(result.message).toBe("模型连接成功");
+    expect(calls[0]?.method).toBe("POST");
+    expect(calls[0]?.url).toBe("/api/models/test");
+    expect(jsonBody(calls[0]?.body)).toEqual({ modelId: "gpt-4o", providerId: "pv1" });
+  });
 });

tests/web/hooks/use-providers.test.ts

@@ -3,12 +3,10 @@ import { describe, expect, test } from "bun:test";
 import {
   createProvider,
   deleteProvider,
-  disableProvider,
-  enableProvider,
   fetchProvider,
   fetchProviderList,
+  fetchProviderOptions,
   testProviderConfig,
-  testProviderConnection,
   updateProvider,
 } from "../../../src/web/hooks/use-providers";
 import { installFetchMock, jsonResponse } from "../test-utils";
@@ -17,7 +15,6 @@ const PROVIDER = {
   apiKey: "sk-test",
   baseUrl: "https://api.openai.com/v1",
   createdAt: "2024-01-01T00:00:00.000Z",
-  enabled: true,
   id: "pv1",
   name: "OpenAI",
   type: "openai" as const,
@@ -49,7 +46,7 @@ describe("use-providers request helpers", () => {
     expect(calls[0]?.url).toBe("/api/providers?page=1&pageSize=20&keyword=OpenAI");
   });
 
-  test("CRUD and enable/disable use correct method, URL and body", async () => {
+  test("CRUD uses correct method, URL and body", async () => {
     const calls = installFetchMock((call) => {
       if (call.method === "DELETE") return new Response(null, { status: 204 });
       return jsonResponse(
@@ -60,16 +57,12 @@ describe("use-providers request helpers", () => {
 
     await createProvider({ apiKey: "sk-test", baseUrl: "https://api.openai.com/v1", name: "OpenAI", type: "openai" });
     await updateProvider("pv1", { name: "New OpenAI" });
-    await enableProvider("pv1");
-    await disableProvider("pv1");
     await deleteProvider("pv1");
     await fetchProvider("pv1");
 
     expect(calls.map((c) => c.method + " " + c.url)).toEqual([
       "POST /api/providers",
       "PATCH /api/providers/pv1",
-      "POST /api/providers/pv1/enable",
-      "POST /api/providers/pv1/disable",
       "DELETE /api/providers/pv1",
       "GET /api/providers/pv1",
     ]);
@@ -82,12 +75,14 @@ describe("use-providers request helpers", () => {
     expect(jsonBody(calls[1]?.body)).toEqual({ name: "New OpenAI" });
   });
 
-  test("testProviderConnection uses correct URL and parses response", async () => {
-    installFetchMock(() => jsonResponse({ providerTestResponse: { message: "ok", ok: true } }));
+  test("fetchProviderOptions uses dedicated minimal endpoint", async () => {
+    const calls = installFetchMock(() => jsonResponse({ items: [{ id: "pv1", name: "OpenAI", type: "openai" }] }));
 
-    const result = await testProviderConnection("pv1");
+    const result = await fetchProviderOptions();
 
-    expect(result).toEqual({ message: "ok", ok: true });
+    expect(result.items).toEqual([{ id: "pv1", name: "OpenAI", type: "openai" }]);
+    expect(calls[0]?.method).toBe("GET");
+    expect(calls[0]?.url).toBe("/api/providers/options");
   });
 
   test("testProviderConfig posts form config and parses response", async () => {