feat: 插件适配页面与系统完善（v0.1.0）

- 修复 /categories、/tags 因变量为 List 误用 .items 导致的 500
- 新增 layout.html 布局契约，消除插件页面 fallback 警告
- 适配 plugin-moments / plugin-photos / plugin-links（含友链申请表单与 RSS 订阅页）
- 适配 halo-weread-plugin（书架页）、留言板单页模板
- 适配 plugin-extra-api 的代码高亮与暗色样式
- 修复暗黑模式评论区不可见（补充 color-scheme 与兜底样式）
- 更新元数据：作者暖心向阳335、版本 0.1.0、requires >=2.26.0

src/modules/category-tree.html

@@ -0,0 +1,22 @@
+<th:block th:fragment="category-tree(cats)">
+  <ul class="category-tree">
+    <li class="category-tree-item" th:each="cat : ${cats}">
+      <a th:href="@{${cat.status.permalink}}" class="category-tree-link">
+        <span class="category-tree-name" th:text="${cat.spec.displayName}">Category</span>
+        <span
+          class="category-tree-count"
+          th:text="${cat.postCount}"
+          th:if="${cat.postCount != null and cat.postCount > 0}"
+          >0</span
+        >
+      </a>
+      <th:block
+        th:if="${cat.children != null and !#lists.isEmpty(cat.children)}"
+      >
+        <th:block
+          th:replace="~{modules/category-tree :: category-tree(cats=${cat.children})}"
+        ></th:block>
+      </th:block>
+    </li>
+  </ul>
+</th:block>

src/modules/pagination.html

@@ -0,0 +1,37 @@
+<!--
+  分页导航。
+  context 为当前列表的路由前缀（如 '/'、'/archives/'、分类或标签 permalink + '/'），
+  页码链接由 context + 'page/' + n 构造，不硬编码可配置路由。
+-->
+<nav
+  class="pagination"
+  th:fragment="pagination(context, prevUrl, nextUrl, totalPages, page, hasPrevious, hasNext)"
+  th:if="${hasPrevious || hasNext}"
+>
+  <a
+    th:if="${hasPrevious}"
+    th:href="@{${prevUrl}}"
+    class="pagination-item pagination-prev"
+  >
+    <span>←</span>
+    <span th:text="#{pagination.previous}">Previous</span>
+  </a>
+  <span class="pagination-pages">
+    <a
+      th:each="i : ${#numbers.sequence(1, totalPages)}"
+      th:href="@{${i == 1 ? context : (context + 'page/' + i)}}"
+      th:text="${i}"
+      class="pagination-item"
+      th:classappend="${i == page} ? 'active'"
+      >1</a
+    >
+  </span>
+  <a
+    th:if="${hasNext}"
+    th:href="@{${nextUrl}}"
+    class="pagination-item pagination-next"
+  >
+    <span th:text="#{pagination.next}">Next</span>
+    <span>→</span>
+  </a>
+</nav>

src/modules/post-card.html

@@ -0,0 +1,25 @@
+<!-- 文章列表卡片 -->
+<article
+  class="post"
+  th:fragment="post-card(post)"
+  th:classappend="${not #strings.isEmpty(post.spec.cover)} ? 'post-with-thumb'"
+>
+  <div class="post-thumb" th:if="${not #strings.isEmpty(post.spec.cover)}">
+    <a th:href="@{${post.status.permalink}}">
+      <img th:src="${post.spec.cover}" th:alt="${post.spec.title}" loading="lazy" />
+    </a>
+  </div>
+  <div class="post-content">
+    <h2 class="post-title">
+      <a th:href="@{${post.status.permalink}}" th:text="${post.spec.title}"
+        >Post title</a
+      >
+    </h2>
+    <p
+      class="post-excerpt"
+      th:if="${not #strings.isEmpty(post.status.excerpt)}"
+      th:text="${post.status.excerpt}"
+    ></p>
+    <th:block th:replace="~{modules/post-meta :: post-meta(post=${post}, dateClass='post-date')}"></th:block>
+  </div>
+</article>

src/modules/post-meta.html

@@ -0,0 +1,26 @@
+<!-- 文章元信息（时间 / 分类 / 浏览量），供列表卡片与详情页复用 -->
+<div class="post-meta" th:fragment="post-meta(post, dateClass)">
+  <time
+    th:if="${post.spec.publishTime != null}"
+    th:class="${dateClass}"
+    th:datetime="${post.spec.publishTime}"
+    th:text="${#temporals.format(post.spec.publishTime, 'yyyy-MM-dd')}"
+    data-relative-time
+  ></time>
+  <th:block th:if="${not #lists.isEmpty(post.categories)}">
+    <span class="post-meta-sep">·</span>
+    <span class="post-category">
+      <a
+        th:each="cat : ${post.categories}"
+        th:href="@{${cat.status.permalink}}"
+        th:text="${cat.spec.displayName}"
+      ></a>
+    </span>
+  </th:block>
+  <th:block th:if="${post.stats != null and post.stats.visit != null and post.stats.visit > 0}">
+    <span class="post-meta-sep">·</span>
+    <span class="post-views" th:text="#{post.views(${post.stats.visit})}"
+      >1 views</span
+    >
+  </th:block>
+</div>