feat: init Astro blog with wikilinks, KaTeX and local search

- Astro 5 static blog, zero runtime JS - Obsidian wikilink remark plugin (slug matches Astro content collection) - KaTeX math rendering, local search, TOC, archives, tags - 5 posts on math/physics/ML topics - deploy scripts for nginx + certbot + rsync
2026-08-14 00:19:33 +08:00
commit 12dd13a76f
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+# 依赖与构建产物
+node_modules/
+dist/
+.astro/
+
+# 日志与系统文件
+*.log
+.DS_Store
+
+# 环境变量（避免误传密钥）
+.env
+.env.*
+
+# 编辑器
+.vscode/
+.idea/