chore(spec): 归档 blog-5n——八任务收敛（后台深度优化全家桶）

Spec: 2026-11-05_blog-5n-admin-deep-optimization

Co-authored-by: GLM-5.3

content/site/home.yaml

@@ -1,15 +1,17 @@
-tagline:
-  zh: 拥抱开源，热爱开源
-  en: Embracing open source, loving open source.
-latestPhotos: 4
-perTrackLimit: 6
-sections:
-  tracks: true
-  photos: true
-  heatmap: true
-  projects: true
-avatar: ./assets/118a04cd0986b9c5.jpg
-favicon: assets/118a04cd0986b9c5.jpg
+# 5n C1 后台折叠分组：平铺字段收进 identity/copy/content 三个可选组（组内压平叶子），socials 顶层原位。
+# 旧→新映射见 src/content.config.ts 的 siteHome schema 注释；本次迁移值逐字保留，零功能变化。
+identity:
+  tagline_zh: 拥抱开源，热爱开源
+  tagline_en: Embracing open source, loving open source.
+  avatar: ./assets/118a04cd0986b9c5.jpg
+  favicon: assets/118a04cd0986b9c5.jpg
+content:
+  latestPhotos: 4
+  perTrackLimit: 6
+  sections_tracks: true
+  sections_photos: true
+  sections_heatmap: true
+  sections_projects: true
 socials:
   - label: GitHub
     url: https://github.com/wait4xx