feat: CV hero uses plugin identity with site.author fallback

CV page hero now checks cvPageConfig.identity before falling back to
site.author, matching the homepage hero pattern. Social links use the
shared socialIcon macro.

_includes/components/cv-builder.njk

@@ -6,39 +6,55 @@
 {% set layout = cvPageConfig.layout or "single-column" %}
 {% set hasSidebar = cvPageConfig.sidebar and cvPageConfig.sidebar.length %}
 
+{# CV identity — check cvPageConfig.identity first, fall back to site.author #}
+{% set cvId = cvPageConfig.identity if (cvPageConfig and cvPageConfig.identity) else {} %}
+{% set authorName = cvId.name or site.author.name %}
+{% set authorAvatar = cvId.avatar or site.author.avatar %}
+{% set authorTitle = cvId.title or site.author.title %}
+{% set authorBio = cvId.bio or site.author.bio %}
+{% set authorDescription = cvId.description or '' %}
+{% set socialLinks = cvId.social if (cvId.social and cvId.social.length) else site.social %}
+
 {# Hero — rendered at top when enabled (default: true) #}
 {% if cvPageConfig.hero.enabled != false %}
 <section class="mb-8 sm:mb-12">
   <div class="flex flex-col sm:flex-row gap-6 sm:gap-8 items-start">
     <img
-      src="{{ site.author.avatar }}"
-      alt="{{ site.author.name }}"
+      src="{{ authorAvatar }}"
+      alt="{{ authorName }}"
       class="w-24 h-24 sm:w-32 sm:h-32 rounded-full object-cover shadow-lg flex-shrink-0"
       loading="eager"
     >
     <div class="flex-1 min-w-0">
       <h1 class="text-2xl sm:text-3xl md:text-4xl font-bold text-surface-900 dark:text-surface-100 mb-2">
-        {{ site.author.name }}
+        {{ authorName }}
       </h1>
-      {% if site.author.title %}
+      {% if authorTitle %}
       <p class="text-lg sm:text-xl text-primary-600 dark:text-primary-400 mb-3 sm:mb-4">
-        {{ site.author.title }}
+        {{ authorTitle }}
       </p>
       {% endif %}
-      {% if site.author.bio %}
+      {% if authorBio %}
       <p class="text-base sm:text-lg text-surface-700 dark:text-surface-300 mb-4">
-        {{ site.author.bio }}
+        {{ authorBio }}
       </p>
       {% endif %}
-      {% if cvPageConfig.hero.showSocial != false %}
+      {% if authorDescription %}
+      <p class="text-base sm:text-lg text-surface-700 dark:text-surface-300 mb-4 sm:mb-6">
+        {{ authorDescription }}
+      </p>
+      {% endif %}
+      {% from "components/social-icon.njk" import socialIcon %}
+      {% if cvPageConfig.hero.showSocial != false and socialLinks %}
       <div class="flex flex-wrap gap-3">
-        {% for link in site.social %}
+        {% for link in socialLinks %}
         <a
           href="{{ link.url }}"
           rel="{{ link.rel }} noopener"
           class="inline-flex items-center gap-2 px-3 py-2 text-sm bg-surface-100 dark:bg-surface-800 rounded-lg hover:bg-surface-200 dark:hover:bg-surface-700 transition-colors"
           target="_blank"
         >
+          {{ socialIcon(link.icon, "w-5 h-5") }}
           <span class="text-sm font-medium">{{ link.name }}</span>
         </a>
         {% endfor %}