From 3e09a362cc7de64b51ea19082812ee3e46fa8518 Mon Sep 17 00:00:00 2001
From: wait4xx <X@alumni.nudt.edu.cn>
Date: Mon, 2 Nov 2026 19:02:41 +0800
Subject: [PATCH] =?UTF-8?q?refactor(home):=20=E9=A6=96=E9=A1=B5=E4=B8=89?=
 =?UTF-8?q?=E5=AD=97=E6=AE=B5=E9=BB=98=E8=AE=A4=E5=80=BC=E6=94=B6=E6=95=9B?=
 =?UTF-8?q?=E5=88=B0=20SITE=5FDEFAULTS=EF=BC=885g=20T4=20=E8=A1=A5?=
 =?UTF-8?q?=EF=BC=89?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

- SITE_DEFAULTS 新增 homeProjectsLimit=6 / homeAnnouncement(空) /
  homePostsTracks(全开)，访问器改为引用默认常量而非散落字面量
- 旧 yaml（无三字段）零回归实测：公告不渲染、项目墙默认 6 条、三轨全开

验证: 构建 48 页 exit 0；E2E 37/37（快照口径）

Spec: 2026-11-02_blog-5g-pages (T3/T4 补充)

Co-authored-by: GLM-5.3
---
 src/lib/site-content.ts | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/src/lib/site-content.ts b/src/lib/site-content.ts
index 21f02df..d6cce84 100644
--- a/src/lib/site-content.ts
+++ b/src/lib/site-content.ts
@@ -12,6 +12,12 @@ export interface Bi {
 
 /** 与仓库现状逐字一致的默认文案：yaml 全空时产物不变（零回归可视验证锚点） */
 export const SITE_DEFAULTS = {
+  /** 首页项目墙条数（旧 yaml 无此字段时的默认：6 条） */
+  homeProjectsLimit: 6,
+  /** 首页公告（默认空 = 不渲染） */
+  homeAnnouncement: { zh: '', en: '' },
+  /** 首页轨细分（默认全开 = 现状） */
+  homePostsTracks: { reading: true, tech: true, photo: true },
   homeTagline: {
     zh: '写作者 · 读者 · 快门按压者，拥抱开源。',
     en: 'Writer · Reader · Shutter-presser — embracing open source.',
@@ -256,12 +262,12 @@ export async function homeConfig(locale: Locale): Promise<HomeConfig> {
   const d = entry?.data;
   return {
     subtitle: pickBi(d?.subtitle, { zh: '', en: '' }, locale),
-    announcement: pickBi(d?.announcement, { zh: '', en: '' }, locale),
-    projectsLimit: clampInt(d?.projectsLimit, 1, 99, 6),
+    announcement: pickBi(d?.announcement, SITE_DEFAULTS.homeAnnouncement, locale),
+    projectsLimit: clampInt(d?.projectsLimit, 1, 99, SITE_DEFAULTS.homeProjectsLimit),
     postsTracks: {
-      reading: d?.postsTracks?.reading ?? true,
-      tech: d?.postsTracks?.tech ?? true,
-      photo: d?.postsTracks?.photo ?? true,
+      reading: d?.postsTracks?.reading ?? SITE_DEFAULTS.homePostsTracks.reading,
+      tech: d?.postsTracks?.tech ?? SITE_DEFAULTS.homePostsTracks.tech,
+      photo: d?.postsTracks?.photo ?? SITE_DEFAULTS.homePostsTracks.photo,
     },
     latestPhotos: clampInt(d?.latestPhotos, 0, 6, 4),
     perTrackLimit: clampInt(d?.perTrackLimit, 4, 8, 6),