feat(reader): remove admin delete button from reader header; shelf card hover remains the only delete entry

docs/CHANGELOG_web.md

@@ -36,6 +36,11 @@ The format loosely follows Keep a Changelog and can be adapted to the team's hab
 - Whole UI restyled to a warm library palette (stone surfaces + amber accents, replacing cool zinc + emerald): warmer dark chrome, amber primary buttons/links, hover/press feedback on shelf cards (cover lift + glow), reader header with format badge and blur, pill-style CBZ page indicator, EPUB spread centered like a book page.
 - 全站换为暖色「书房」配色（stone 深灰面 + amber 琥珀强调，替代冷色 zinc + emerald）：书架封面悬停上浮高亮、阅读器顶栏带格式徽章与毛玻璃、CBZ 页码改为悬浮胶囊、EPUB 页面居中成书卷感，主按钮/链接统一琥珀色并补齐悬停/焦点反馈。
 
+### Removed / 移除
+
+- The admin 删除 button is gone from the reader header: deleting books now lives only in the shelf cover-card hover action, so a destructive tap can't happen one step away from the page-turn zone while reading.
+- 阅读器顶栏右上角不再提供 admin「删除」按钮:删除入口仅保留在书架封面卡片的悬停操作中,避免阅读时误触翻页区旁的破坏性删除。
+
 ### Fixed / 修复
 
 - Comic continuous-scroll mode is contiguous again on phones: the size observer used to miss the scroll container (it was attached while the reader still showed "loading", so the box didn't exist), leaving page geometry computed from a stale 480px default width while pages rendered at the real (e.g. 390px) width — every page gained a constant dead gap. The observer now attaches when the box actually mounts; additionally, mobile address-bar show/hide no longer rebuilds the scroll geometry in continuous/whole-page modes, which used to wipe measured page heights and re-trigger a burst of image requests.

frontend/src/components/icons.tsx

@@ -55,12 +55,6 @@ export const IconX = (p: P) => (
   </Svg>
 );
 
-export const IconTrash = (p: P) => (
-  <Svg {...p}>
-    <path d="M4.5 6.5h15M9.5 6.5V4.75A.75.75 0 0 1 10.25 4h3.5a.75.75 0 0 1 .75.75v1.75M6.5 6.5l.8 12a1.5 1.5 0 0 0 1.5 1.4h6.4a1.5 1.5 0 0 0 1.5-1.4l.8-12" />
-  </Svg>
-);
-
 export const IconLogout = (p: P) => (
   <Svg {...p}>
     <path d="M14 4h4.5A1.5 1.5 0 0 1 20 5.5v13a1.5 1.5 0 0 1-1.5 1.5H14" />

frontend/src/pages/Reader.tsx

@@ -1,11 +1,9 @@
-import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
+import { useQuery } from "@tanstack/react-query";
 import { Suspense, lazy, useCallback, useMemo, useState, type ComponentType, type LazyExoticComponent } from "react";
-import { Link, useNavigate, useParams } from "react-router-dom";
+import { Link, useParams } from "react-router-dom";
 import { api } from "../api/client";
 import type { Format } from "../api/types";
-import { useAuth } from "../auth/AuthContext";
+import { IconArrowLeft } from "../components/icons";
-import { IconArrowLeft, IconTrash } from "../components/icons";
-import { toast } from "../components/Toaster";
 import { btn, btnGhost, formatBadge } from "../components/ui";
 import type { ReaderProps } from "../lib/useProgress";
 
@@ -20,9 +18,6 @@ const READERS: Partial<Record<Format, LazyExoticComponent<ComponentType<ReaderPr
 export default function Reader() {
   const { id: idStr } = useParams();
   const id = Number(idStr);
-  const qc = useQueryClient();
-  const nav = useNavigate();
-  const { isAdmin } = useAuth();
   const [chromeOn, setChromeOn] = useState(true);
 
   const toggle = useCallback(() => setChromeOn((v) => !v), []);
@@ -31,15 +26,6 @@ export default function Reader() {
 
   const bookQ = useQuery({ queryKey: ["book", id], queryFn: () => api.getBook(id), enabled: Number.isFinite(id) });
   const progQ = useQuery({ queryKey: ["progress"], queryFn: api.listProgress });
-  const del = useMutation({
-    mutationFn: () => api.deleteBook(id),
-    onSuccess: () => {
-      toast("ok", "已删除");
-      qc.invalidateQueries({ queryKey: ["books"] });
-      nav("/");
-    },
-    onError: (e) => toast("err", e instanceof Error ? e.message : "删除失败"),
-  });
 
   const book = bookQ.data;
   const body = (() => {
@@ -81,17 +67,6 @@ export default function Reader() {
             <span className="tabular-nums">{Math.round(book.percent * 100)}%</span>
           </span>
         )}
-        {isAdmin && book && (
-          <button
-            className={btn + " ml-auto text-red-300"}
-            onClick={() => {
-              if (confirm(`删除《${book.title}》?磁盘文件一并删除,阅读进度保留`)) del.mutate();
-            }}
-          >
-            <IconTrash className="size-4" />
-            删除
-          </button>
-        )}
       </header>
       <div className="min-h-0 flex-1">
         <Suspense fallback={<Msg text="加载阅读器…" />}>{body}</Suspense>