统一业务页面权限与抽屉编辑

1、将 FAQ 分类和问题维护改为抽屉交互，并按分类、问题、回复的细粒度权限控制入口。

2、将注意事项、可行性和伦理记录接入详情页抽屉编辑，创建时支持先保存主记录再上传附件。

3、将参与者基础信息编辑改为抽屉，详情页按可读权限显示病史、访视、AE 和 PD 标签页。

4、补充业务页面权限一致性测试，覆盖停用中心、无权限入口和面包屑上下文。

frontend/src/api/faqs.test.ts

@@ -0,0 +1,57 @@
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+const apiPost = vi.fn();
+const apiPatch = vi.fn();
+const apiDelete = vi.fn();
+
+vi.mock("./axios", () => ({
+  apiPost,
+  apiPatch,
+  apiDelete,
+}));
+
+describe("faqs category api", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it("passes study_id as a query parameter for category write permission checks", async () => {
+    const { createFaqCategory, updateFaqCategory, deleteFaqCategory } = await import("./faqs");
+    const payload = { study_id: "study-1", name: "用药咨询" };
+
+    createFaqCategory(payload);
+    updateFaqCategory("category-1", payload);
+    deleteFaqCategory("category-1", "study-1");
+
+    expect(apiPost).toHaveBeenCalledWith("/api/v1/faqs/categories/", payload, { params: { study_id: "study-1" } });
+    expect(apiPatch).toHaveBeenCalledWith("/api/v1/faqs/categories/category-1", payload, {
+      params: { study_id: "study-1" },
+    });
+    expect(apiDelete).toHaveBeenCalledWith("/api/v1/faqs/categories/category-1", {
+      params: { study_id: "study-1" },
+    });
+  });
+});
+
+describe("faqs item api", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it("passes study_id as a query parameter for item write permission checks", async () => {
+    const { createFaqItem, updateFaqItem, deleteFaqItem } = await import("./faqs");
+    const payload = { study_id: "study-1", category_id: "category-1", question: "是否需要空腹用药？" };
+
+    createFaqItem(payload);
+    updateFaqItem("item-1", payload);
+    deleteFaqItem("item-1", "study-1");
+
+    expect(apiPost).toHaveBeenCalledWith("/api/v1/faqs/items/", payload, { params: { study_id: "study-1" } });
+    expect(apiPatch).toHaveBeenCalledWith("/api/v1/faqs/items/item-1", payload, {
+      params: { study_id: "study-1" },
+    });
+    expect(apiDelete).toHaveBeenCalledWith("/api/v1/faqs/items/item-1", {
+      params: { study_id: "study-1" },
+    });
+  });
+});