format: apply repo prettier (3.8.1) to the folded skills tree

963 markdown files reformatted with the repository's pinned prettier so
pnpm format:check covers the folded tree like every other repo file.

The formatter's embedded-language pass also normalized code fences
(TS semicolons, closed HTML tags in examples, lowercased CSS hex colors,
one renumbered list that skipped an index). Alphanumeric token deltas vs
the fold commit were audited file-by-file; all are formatter-equivalent
markup normalizations plus the four sanitized skills.

packages/mosaic/framework/skills/code-review-excellence/reference/go.md

@@ -5,6 +5,7 @@
 ## 快速审查清单
 
 ### 必查项
+
 - [ ] 错误是否正确处理（不忽略、有上下文）
 - [ ] goroutine 是否有退出机制（避免泄漏）
 - [ ] context 是否正确传递和取消
@@ -12,6 +13,7 @@
 - [ ] 是否使用 `gofmt` 格式化代码
 
 ### 高频问题
+
 - [ ] 循环变量捕获问题（Go < 1.22）
 - [ ] nil 检查是否完整
 - [ ] map 是否初始化后使用