test: 测试体系全面优化，修复 Windows SQLite EBUSY 和前端产品缺陷

测试基础设施
- 统一 SQLite 测试 DB/临时目录 helper（tests/helpers.ts），支持 Windows EBUSY 重试清理
- 测试库使用 PRAGMA journal_mode=DELETE 避免 WAL 句柄延迟
- 路由 handler 测试改用 createMigratedMemoryTestDatabase 避免 File DB 锁
- SQLite 聚焦 --rerun-each=20 全部通过（720 pass）

后端测试补强
- 新增 tests/server/app.test.ts 真实 startServer 集成测试
- 覆盖 /api/meta、项目 CRUD、错误路径、静态 fallback、安全 header
- bootstrap/logger 测试捕获预期输出，消除测试噪音

前端测试补强
- 移除 .ant-* 内部类名依赖，改为角色/文本/导航/请求契约断言
- 项目页补充搜索、Tab 切换、表单、表格操作、错误反馈行为测试
- 新增 hooks（use-theme-preference、use-sidebar-collapsed、use-projects）纯逻辑测试
- 新增 ErrorBoundary 错误展示和刷新按钮测试
- 新增搜索清空行为测试
- 测试 setup 过滤 antd/rc-trigger NaN height warning

产品修复（测试暴露）
- 修复 ProjectToolbar 搜索框无法输入（新增 draftKeyword 状态）
- 加固 ProjectFormModal 表单字段同步（useEffect 替代不可靠的 afterOpenChange）
- 清理 ProjectFormModal 冗余 afterOpenChange 同步逻辑

重构与合规
- ProjectContext 拆分为三文件满足 React Fast Refresh 规则
- use-projects.ts 导出内部 helper 函数供测试验证
- scripts/build.ts 提取纯生成函数供测试使用，修复构建步骤日志编号
- 修复 build 测试覆盖真实生成逻辑

文档同步
- 更新后端/前端/开发文档测试规范、质量门禁和 helper 使用说明

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

@@ -0,0 +1,88 @@
+import { describe, expect, test } from "bun:test";
+
+import {
+  archiveProject,
+  createProject,
+  deleteProject,
+  fetchProject,
+  fetchProjectList,
+  restoreProject,
+  updateProject,
+} from "../../../src/web/hooks/use-projects";
+import { installFetchMock, jsonResponse } from "../test-utils";
+
+const PROJECT = {
+  archivedAt: null,
+  createdAt: "2024-01-01T00:00:00.000Z",
+  description: "描述",
+  id: "p1",
+  name: "项目",
+  status: "active" as const,
+  updatedAt: "2024-01-01T00:00:00.000Z",
+};
+
+async function expectRejectsWithMessage(action: () => Promise<unknown>, message: string) {
+  try {
+    await action();
+    throw new Error("expected rejection");
+  } catch (error) {
+    expect(error).toBeInstanceOf(Error);
+    expect((error as Error).message).toBe(message);
+  }
+}
+
+function jsonBody(body: BodyInit | null | undefined): unknown {
+  return JSON.parse(typeof body === "string" ? body : "{}");
+}
+
+describe("use-projects request helpers", () => {
+  test("fetchProjectList 按协议拼接 query 参数", async () => {
+    const calls = installFetchMock(() => jsonResponse({ items: [PROJECT], page: 2, pageSize: 10, total: 1 }));
+
+    const result = await fetchProjectList({ keyword: "项目", page: 2, pageSize: 10, status: "active" });
+
+    expect(result.items).toHaveLength(1);
+    expect(calls[0]?.method).toBe("GET");
+    expect(calls[0]?.url).toBe("/api/projects?page=2&pageSize=10&keyword=%E9%A1%B9%E7%9B%AE&status=active");
+  });
+
+  test("创建、更新、归档、恢复和删除使用正确 method 与 body", async () => {
+    const calls = installFetchMock((call) => {
+      if (call.method === "DELETE") return new Response(null, { status: 204 });
+      return jsonResponse(
+        { project: PROJECT },
+        { status: call.method === "POST" && call.url === "/api/projects" ? 201 : 200 },
+      );
+    });
+
+    await createProject({ description: "描述", name: "项目" });
+    await updateProject("p1", { name: "新项目" });
+    await archiveProject("p1");
+    await restoreProject("p1");
+    await deleteProject("p1");
+    await fetchProject("p1");
+
+    expect(calls.map((call) => `${call.method} ${call.url}`)).toEqual([
+      "POST /api/projects",
+      "PATCH /api/projects/p1",
+      "POST /api/projects/p1/archive",
+      "POST /api/projects/p1/restore",
+      "DELETE /api/projects/p1",
+      "GET /api/projects/p1",
+    ]);
+    expect(jsonBody(calls[0]?.body)).toEqual({ description: "描述", name: "项目" });
+    expect(jsonBody(calls[1]?.body)).toEqual({ name: "新项目" });
+  });
+
+  test("错误响应优先使用后端 error 字段", async () => {
+    installFetchMock(() => jsonResponse({ error: "项目名称已存在" }, { status: 409 }));
+
+    await expectRejectsWithMessage(() => createProject({ name: "重复项目" }), "项目名称已存在");
+  });
+
+  test("非 JSON 错误响应回退到 HTTP 状态", async () => {
+    installFetchMock(() => new Response("broken", { status: 500 }));
+
+    await expectRejectsWithMessage(() => fetchProject("p-missing"), "HTTP 500");
+  });
+});