init local code

src/main/resources/templates/themes/warm-kinder/fragments/head.html

@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html xmlns:th="http://www.thymeleaf.org" lang="zh-CN">
+<!-- 公共 head 片段：SEO（title/description/canonical）+ 主题资产（方案 §8.3/§8.6） -->
+<head th:fragment="head">
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <title th:text="${pageTitle}">页面标题</title>
+    <meta name="description" th:if="${seoDescription != null and !#strings.isEmpty(seoDescription)}"
+          th:content="${seoDescription}">
+    <link rel="canonical" th:if="${canonical != null}" th:href="${canonical}">
+    <!-- og 标签基本三件（C-7，方案 §8.6 canonical/og 同基准） -->
+    <meta property="og:title" th:if="${pageTitle != null}" th:content="${pageTitle}">
+    <meta property="og:description" th:if="${seoDescription != null and !#strings.isEmpty(seoDescription)}" th:content="${seoDescription}">
+    <meta property="og:image" th:if="${ogImage != null}" th:content="${ogImage}">
+    <link rel="stylesheet" th:href="${url.asset('css/main.css')}">
+    <!-- 微调参数 CSS 变量覆盖（方案 §5.3）：位于皮肤 CSS 之后层叠覆盖；值由服务端预构建并校验 -->
+    <style th:if="${not #strings.isEmpty(themeVarsCss)}" th:utext="${themeVarsCss}"></style>
+    <!-- favicon：管理端配置了 favicon 键用上传图，未配置输出主题内置兜底 icon（assets/favicon.png） -->
+    <link rel="icon" type="image/png"
+          th:href="${site.config['favicon'] != null ? url.upload(site.config['favicon']) : url.asset('favicon.png')}">
+</head>
+</html>