feat(profile): 프로필 이미지를 PNG로 교체

블로그 전체 프로필 이미지를 character.svg에서 character.png로 교체.
헤더 로고, 메인 페이지, About 페이지(ko/en/ja), OG 이미지 기본값 모두 반영.

Author: realcoding2003

_includes/header.html

@@ -11,7 +11,7 @@
                 {% else %}
                     <a href="{{ '/' | append: current_lang | append: '/' | relative_url }}" class="brand-link">
                 {% endif %}
-                    <img src="{{ '/assets/images/character.svg' | relative_url }}" alt="Logo" class="brand-logo">
+                    <img src="{{ '/assets/images/character.png' | relative_url }}" alt="Logo" class="brand-logo">
                     <span class="brand-text">{{ lang_data.site.title }}</span>
                 </a>
             </div>

_layouts/default.html

@@ -47,9 +47,9 @@
 
     <!-- Dynamic OG Image Selection -->
     {% if page.layout == "post" %}
-      {% assign og_image = page.og_image | default: page.image | default: '/assets/images/character.svg' %}
+      {% assign og_image = page.og_image | default: page.image | default: '/assets/images/character.png' %}
     {% else %}
-      {% assign og_image = '/assets/images/character.svg' %}
+      {% assign og_image = '/assets/images/character.png' %}
     {% endif %}
 
     <!-- Open Graph / Facebook -->

about.html

@@ -8,7 +8,7 @@
 <div class="about-container">
   <div class="about-intro">
     <div class="about-avatar">
-      <img src="/assets/images/character.svg" alt="Kevin Park" class="character-image">
+      <img src="/assets/images/character.png" alt="Kevin Park" class="character-image">
     </div>
     <div class="about-text">
       <h1>안녕하세요! 저는 <strong>Kevin Park</strong>입니다</h1>

assets/images/character.png

@@ -8,7 +8,7 @@
 <div class="about-container">
   <div class="about-intro">
     <div class="about-avatar">
-      <img src="/assets/images/character.svg" alt="Kevin Park" class="character-image">
+      <img src="/assets/images/character.png" alt="Kevin Park" class="character-image">
     </div>
     <div class="about-text">
       <h1>Hello! I'm <strong>Kevin Park</strong></h1>

en/about.html

@@ -83,7 +83,7 @@ <h3>Coming Soon!</h3>
           <h3>{{ lang_data.sidebar.about_title }}</h3>
           <div class="about-content">
             <div class="about-avatar">
-              <img src="{{ '/assets/images/character.svg' | relative_url }}" alt="Kevin Park" class="avatar-image">
+              <img src="{{ '/assets/images/character.png' | relative_url }}" alt="Kevin Park" class="avatar-image">
             </div>
             <p>{{ lang_data.sidebar.about_description }}</p>
             <a href="/en/about" class="about-link">{{ lang_data.sidebar.learn_more }} →</a>

en/index.html

@@ -72,7 +72,7 @@ <h3 class="post-title">
           <h3>{{ lang_data.sidebar.about_title }}</h3>
           <div class="about-content">
             <div class="about-avatar">
-              <img src="{{ '/assets/images/character.svg' | relative_url }}" alt="Kevin Park" class="avatar-image">
+              <img src="{{ '/assets/images/character.png' | relative_url }}" alt="Kevin Park" class="avatar-image">
             </div>
             <p>{{ lang_data.sidebar.about_description }}</p>
             <a href="/about" class="about-link">{{ lang_data.sidebar.learn_more }} →</a>

index.html

@@ -8,7 +8,7 @@
 <div class="about-container">
   <div class="about-intro">
     <div class="about-avatar">
-      <img src="/assets/images/character.svg" alt="Kevin Park" class="character-image">
+      <img src="/assets/images/character.png" alt="Kevin Park" class="character-image">
     </div>
     <div class="about-text">
       <h1>こんにちは！私は <strong>Kevin Park</strong> です</h1>

ja/about.html

@@ -83,7 +83,7 @@ <h3>準備中！</h3>
           <h3>{{ lang_data.sidebar.about_title }}</h3>
           <div class="about-content">
             <div class="about-avatar">
-              <img src="{{ '/assets/images/character.svg' | relative_url }}" alt="Kevin Park" class="avatar-image">
+              <img src="{{ '/assets/images/character.png' | relative_url }}" alt="Kevin Park" class="avatar-image">
             </div>
             <p>{{ lang_data.sidebar.about_description }}</p>
             <a href="/ja/about" class="about-link">{{ lang_data.sidebar.learn_more }} →</a>