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

views/pages/page.ejs

@@ -0,0 +1,13 @@
+<%- include('../partials/head', { pageType: 'page' }) %>
+
+<div class="content-container page-content-container">
+  <header style="margin-bottom: 2.5rem; padding-bottom: 1.5rem; border-bottom: 1px solid var(--color-border);">
+    <h1 style="font-size: 2.4rem; margin: 0;"><%= page.title %></h1>
+  </header>
+
+  <div class="page-content">
+    <%- page.contentHtml %>
+  </div>
+</div>
+
+<%- include('../partials/foot', { pageType: 'page' }) %>