书架首页改成「在读」，书籍挪到 /bookshelf/books/

原来 /bookshelf/ 是书籍页，点顶部导航「书架」直接进书籍，
和「先看在读」的预期相反。

- /bookshelf/       -> 在读页（view="reading"）
- /bookshelf/books/ -> 书籍页（view="books"）
- 顶部导航「书架」保持指向 /bookshelf/，现在落在在读页，不用改导航
- 侧栏「馆藏」：在读 -> /bookshelf/，书籍 -> /bookshelf/books/
- /bookshelf/reading/ 这个临时 URL 撤掉（还没上线，没有外链负担）

因为导航的 isCurrent 用的是 startsWith，在 /bookshelf/books/ 下
顶部「书架」仍然是高亮状态，符合预期。

验证
- /bookshelf/       : title「在读 20 本」、id=reading、20 张卡、20 条进度条、
                      无书籍区块；侧栏「在读」带 aria-current
- /bookshelf/books/ : title「书籍」、id=books、已读完分组 6 张、无进度条；
                      侧栏「书籍」带 aria-current
- 顶部导航「书架」href = /bookshelf/

README.md

@@ -279,8 +279,10 @@ prose-p:leading-[1.78] md:prose-p:leading-[1.85]
 
 | 页面 | 路径 | 内容 | 侧栏数量 |
 |---|---|---|---|
-| 书籍 | `/bookshelf/` | 手工书单（`books.json`）+ 微信读书已读完 | 两者相加 |
+| 在读 | `/bookshelf/` | 微信读书里没读完的 | 未读完本数 |
-| 在读 | `/bookshelf/reading/` | 微信读书里没读完的 | 未读完本数 |
+| 书籍 | `/bookshelf/books/` | 手工书单（`books.json`）+ 微信读书已读完 | 两者相加 |
+
+顶部导航「书架」指向 `/bookshelf/`，所以点进来先落在**在读**页。
 
 两块内容：
 

docs/操作指南.md

@@ -195,7 +195,7 @@ pnpm preview    # 本地预览构建产物（搜索功能只有这里才生效
 
 ## 7.5 刷新「最近在读」
 
-书架分成两个页面：**书籍** `/bookshelf/`、**在读** `/bookshelf/reading/`，侧栏「馆藏」互相跳转。
+书架分成两个页面：**在读** `/bookshelf/`（顶部导航「书架」的落点）、**书籍** `/bookshelf/books/`，侧栏「馆藏」互相跳转。
 
 「在读」是从微信读书抓来的，数据存在 `src/data/reading.json`。
 

src/components/bookshelf-content.astro

@@ -124,8 +124,8 @@ const recommendBadge = (status?: string) => {
           {/* 漫画和论文两个分类已移除；在读和书籍现在是两个独立页面，这里是它们的导航 */}
           <nav class="flex flex-row md:flex-col gap-1 mb-6 md:mb-8 overflow-x-auto md:overflow-visible -mx-1 px-1">
             {[
-              { href: "/bookshelf/reading/", label: "在读", count: readingCount, svg: "reading", active: isReadingView },
+              { href: "/bookshelf/", label: "在读", count: readingCount, svg: "reading", active: isReadingView },
-              { href: "/bookshelf/", label: "书籍", count: bookStats.total + finishedReading.length, svg: "books", active: !isReadingView },
+              { href: "/bookshelf/books/", label: "书籍", count: bookStats.total + finishedReading.length, svg: "books", active: !isReadingView },
             ].map((it) => (
               <a
                 href={it.href}

src/data/reading.json

@@ -1,5 +1,5 @@
 {
-  "updatedAt": "2026-09-15T03:05:33.930Z",
+  "updatedAt": "2026-09-15T03:11:22.026Z",
   "source": "weread",
   "books": [
     {

src/pages/bookshelf/books.astro

@@ -0,0 +1,12 @@
+---
+import BaseLayout from "@/layouts/BaseLayout.astro"
+import BookshelfContent from "@/components/bookshelf-content.astro"
+import { siteTitleSuffix } from "@/data/site"
+
+const title = `书籍 | ${siteTitleSuffix}`
+const description = "我的阅读记录与书籍推荐"
+---
+
+<BaseLayout {title} {description} fontProfile="interface">
+  <BookshelfContent view="books" />
+</BaseLayout>

src/pages/bookshelf/index.astro

@@ -1,12 +1,17 @@
 ---
 import BaseLayout from "@/layouts/BaseLayout.astro"
 import BookshelfContent from "@/components/bookshelf-content.astro"
+import { getReadingData } from "@/lib/reading"
 import { siteTitleSuffix } from "@/data/site"
 
-const title = `书籍 | ${siteTitleSuffix}`
+// 书架默认落在「在读」页，和顶部导航「书架」的落点一致
-const description = "我的阅读记录与书籍推荐"
+const description = "最近在读的书，数据来自微信读书"
+
+// 用真实本数做标题，抓不到数据时退回通用文案
+const count = getReadingData()?.books.filter((book) => !book.finished).length ?? 0
+const heading = count > 0 ? `在读 ${count} 本` : "在读"
 ---
 
-<BaseLayout {title} {description} fontProfile="interface">
+<BaseLayout title={`${heading} | ${siteTitleSuffix}`} {description} fontProfile="interface">
-  <BookshelfContent view="books" />
+  <BookshelfContent view="reading" />
 </BaseLayout>

src/pages/bookshelf/reading.astro

@@ -1,17 +0,0 @@
----
-import BaseLayout from "@/layouts/BaseLayout.astro"
-import BookshelfContent from "@/components/bookshelf-content.astro"
-import { getReadingData } from "@/lib/reading"
-import { siteTitleSuffix } from "@/data/site"
-
-const title = `在读 | ${siteTitleSuffix}`
-const description = "最近在读的书，数据来自微信读书"
-
-// 用真实本数做标题，抓不到数据时退回通用文案
-const count = getReadingData()?.books.filter((book) => !book.finished).length ?? 0
-const heading = count > 0 ? `在读 ${count} 本` : "在读"
----
-
-<BaseLayout title={`${heading} | ${siteTitleSuffix}`} {description} fontProfile="interface">
-  <BookshelfContent view="reading" />
-</BaseLayout>