Vendor templates and prefer local template assets

templates/blocks/cards/card-numbered--horizontal.html

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+<!-- card-numbered variant: horizontal -->
+<!--
+  📋 card-numbered--horizontal
+  ─────────────────
+  용도: 같은 구조의 항목 2-3개를 가로로 나란히 비교
+  슬롯: items[] (기존과 동일 — title, description)
+  기존 card-numbered의 색상/스타일 유지, 배치만 가로
+-->
+<div class="block-card-num-h" style="--cn-count: {{ items|length }}">
+  {% for item in items %}
+  <div class="cn-item-h">
+    <div class="cn-number-h" style="background: {{ item.color | default('#2563eb') }}">{{ loop.index }}</div>
+    <div class="cn-body-h">
+      <div class="cn-title-h">{{ item.title }}</div>
+      <div class="cn-desc-h">{{ item.description }}</div>
+    </div>
+  </div>
+  {% endfor %}
+</div>
+
+<style>
+.block-card-num-h {
+  display: grid;
+  grid-template-columns: repeat(var(--cn-count, 2), 1fr);
+  gap: 10px;
+}
+.cn-item-h {
+  display: flex;
+  gap: 10px;
+  align-items: flex-start;
+  padding: 10px 14px;
+  background: #f8fafc;
+  border-radius: 8px;
+  border: 1px solid #e2e8f0;
+}
+.cn-number-h {
+  width: 28px;
+  height: 28px;
+  border-radius: 50%;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  color: #ffffff;
+  font-size: 13px;
+  font-weight: 800;
+  flex-shrink: 0;
+}
+.cn-title-h {
+  font-size: 13px;
+  font-weight: 700;
+  color: #1e293b;
+  margin-bottom: 2px;
+}
+.cn-desc-h {
+  font-size: 11px;
+  color: #475569;
+  line-height: 1.6;
+  white-space: pre-line;
+}
+</style>