style(frontend): prettier baseline format (no logic change)

frontend/test/chapters.test.ts

@@ -41,8 +41,12 @@ it("短文无标记 → 单节,chapterText 即全文", () => {
 
 it("卷不感知:只按章切,卷题行留在正文里", () => {
   const t =
-    "第一卷 天云世界\n第一章 铜镜\n" + pad(500) + "\n第二章 修炼\n" + pad(500) +
-    "\n\n\n第二卷 仙界\n第三章 飞升\n" + pad(300);
+    "第一卷 天云世界\n第一章 铜镜\n" +
+    pad(500) +
+    "\n第二章 修炼\n" +
+    pad(500) +
+    "\n\n\n第二卷 仙界\n第三章 飞升\n" +
+    pad(300);
   const chs = splitChapters(t);
   expect(chs.map((c) => c.title)).toEqual(["第一章 铜镜", "第二章 修炼", "第三章 飞升"]);
   expect(chs[0].start).toBe(t.indexOf("第一章"));

frontend/test/group.test.ts

@@ -4,8 +4,19 @@ import type { Book } from "../src/api/types";
 
 let seq = 1;
 const mk = (path: string): Book => ({
-  id: seq++, library_id: 1, path, title: path, format: "cbz", size: 1, mtime: 1, pages: 0,
-  state: "ready", error: "", added_at: "", percent: 0, cover_url: "/api/books/0/cover",
+  id: seq++,
+  library_id: 1,
+  path,
+  title: path,
+  format: "cbz",
+  size: 1,
+  mtime: 1,
+  pages: 0,
+  state: "ready",
+  error: "",
+  added_at: "",
+  percent: 0,
+  cover_url: "/api/books/0/cover",
 });
 
 it("根目录组为空串且排最前;目录组按字典序;组内保持输入顺序", () => {

frontend/test/shelf.test.ts

@@ -3,20 +3,45 @@ import type { Book } from "../src/api/types";
 import { sections, sortBooks } from "../src/lib/shelf";
 
 const b = (over: Partial<Book>): Book =>
-  ({ id: 1, path: "p", title: "t", format: "cbz", size: 1, pages: 1, percent: 0, added_at: "2026-01-01T00:00:00Z", library_id: 1, state: "ready", cover_url: "", page_url_fmt: "", pages_url: "", error: "", ...over }) as Book;
+  ({
+    id: 1,
+    path: "p",
+    title: "t",
+    format: "cbz",
+    size: 1,
+    pages: 1,
+    percent: 0,
+    added_at: "2026-01-01T00:00:00Z",
+    library_id: 1,
+    state: "ready",
+    cover_url: "",
+    page_url_fmt: "",
+    pages_url: "",
+    error: "",
+    ...over,
+  }) as Book;
 
 it("sortBooks: added 新→旧 / title zh 本地化 / progress 高→低且并列按 added", () => {
   const old = b({ id: 1, added_at: "2026-01-01T00:00:00Z", title: "b" });
   const nw = b({ id: 2, added_at: "2026-02-01T00:00:00Z", title: "a" });
   expect(sortBooks([old, nw], "added").map((x) => x.id)).toEqual([2, 1]);
   expect(sortBooks([old, nw], "title").map((x) => x.id)).toEqual([2, 1]);
-  expect(sortBooks([b({ id: 3, percent: 0.2 }), b({ id: 4, percent: 0.9 })], "progress").map((x) => x.id)).toEqual([4, 3]);
-  const tie = [b({ id: 5, percent: 0.5, added_at: "2026-01-01T00:00:00Z" }), b({ id: 6, percent: 0.5, added_at: "2026-03-01T00:00:00Z" })];
+  expect(sortBooks([b({ id: 3, percent: 0.2 }), b({ id: 4, percent: 0.9 })], "progress").map((x) => x.id)).toEqual([
+    4, 3,
+  ]);
+  const tie = [
+    b({ id: 5, percent: 0.5, added_at: "2026-01-01T00:00:00Z" }),
+    b({ id: 6, percent: 0.5, added_at: "2026-03-01T00:00:00Z" }),
+  ];
   expect(sortBooks(tie, "progress").map((x) => x.id)).toEqual([6, 5]);
 });
 
 it("sections: flat 单段无标题;dir 按目录分组且组内排序、根目录置顶", () => {
-  const books = [b({ id: 1, path: "x/a.cbz" }), b({ id: 2, path: "b.cbz", title: "B" }), b({ id: 3, path: "x/c.cbz", title: "A" })];
+  const books = [
+    b({ id: 1, path: "x/a.cbz" }),
+    b({ id: 2, path: "b.cbz", title: "B" }),
+    b({ id: 3, path: "x/c.cbz", title: "A" }),
+  ];
   // 容器 Intl zh 实测序 A < B < t (localeCompare("zh")),故 title 升序为 id3,id2,id1
   expect(sections(books, "title", "flat")).toEqual([{ label: "", books: [books[2], books[1], books[0]] }]);
   const g = sections(books, "title", "dir");