feat: initial release of pengzhan.dev personal editorial blog platform

- Editorial web platform built with Node.js, Express, EJS, and Vanilla CSS
- Markdown content engine with YAML frontmatter, bilingual variants, and hot-reload watcher
- Unified SQLite with FTS5 search indexing, query logging, and schema filters
- Centered editorial post layout with margin-docked left TOC and mobile bottom sheet
- WordPress-grade comment system with moderation dashboard and bulk operations under /guanli
- Complete SEO suite (JSON-LD structured data, RSS/Atom feeds, XML sitemap, robots.txt)
- CI/CD workflows for linting, security audits (Gitleaks), automated tests, and Docker releases

public/css/fonts.css

@@ -0,0 +1,24 @@
+/* Fonts definitions with graceful local fallbacks */
+@font-face {
+  font-family: 'XiaoheSimplifySerif-VF';
+  src: url('/fonts/XiaoheSimplifySerif-VF.otf') format('opentype');
+  font-weight: 100 900;
+  font-style: normal;
+  font-display: swap;
+}
+
+@font-face {
+  font-family: 'Maple Mono NF CN';
+  src: url('/fonts/MapleMono-NF-CN-Regular.ttf') format('truetype');
+  font-weight: 400;
+  font-style: normal;
+  font-display: swap;
+}
+
+@font-face {
+  font-family: 'Maple Mono NF CN';
+  src: url('/fonts/MapleMono-NF-CN-Bold.ttf') format('truetype');
+  font-weight: 700;
+  font-style: normal;
+  font-display: swap;
+}