feat(post): add date button and clean up commented code

Author: lzwjava

_layouts/post.html

@@ -104,13 +104,38 @@ <h2 class="title post-title">
     <a href="/" class="button left-button">Home</a>
 
     <!-- PDF Button -->
-    <a href="#" id="downloadPdfButton" class="button pdf-button" data-file-path="{{ page.path }}">PDF</a>
+     
+    <!-- <a href="#" id="downloadPdfButton" class="button pdf-button" data-file-path="{{ page.path }}">PDF</a> -->
 
     <!-- Audio Button -->
-    {% if page.audio %}
+
+
+
+    <!-- {% if page.audio %}
     <a href="#" id="playAudioButton" class="button audio-button" data-file-path="{{ page.path }}">Audio</a>
+    {% endif %} -->
+
+        <!-- Date Button -->
+    {% if page.path contains '20' %}
+    {% assign date_parts = page.path | split: '/' %}
+    {% assign date_segment = date_parts[1] %}
+
+    {% if date_segment contains '-' %}
+    {% assign date_components = date_segment | split: '-' %}
+
+    {% if date_components.size >= 3 %}
+    {% assign file_date = date_components[0] | append: '.' | append: date_components[1] | append: '.' | append:
+    date_components[2] %}
+    <a href="#" class="button">{{ file_date }}</a>
+    {% else %}
+    <a href="#" class="button">{{ 'now' | date: "%Y.%m.%d" }}</a>
     {% endif %}
 
+    {% else %}
+    <a href="#" class="button">{{ 'now' | date: "%Y.%m.%d" }}</a>
+    {% endif %}
+    {% endif %}
+    
     <!-- Language Select Section -->
     {% assign current_lang = page.path | split: '-' | last | split: '.' | first %}
     {% assign file_parts = page.path | split: '/' | last | replace: ".md", "" | split: '-' %}
@@ -155,26 +180,6 @@ <h2 class="title post-title">
   <div class="button-container">
     <a href="/" class="button left-button">Back</a>
 
-    <!-- Date Button -->
-    {% if page.path contains '20' %}
-    {% assign date_parts = page.path | split: '/' %}
-    {% assign date_segment = date_parts[1] %}
-
-    {% if date_segment contains '-' %}
-    {% assign date_components = date_segment | split: '-' %}
-
-    {% if date_components.size >= 3 %}
-    {% assign file_date = date_components[0] | append: '.' | append: date_components[1] | append: '.' | append:
-    date_components[2] %}
-    <a href="#" class="button">{{ file_date }}</a>
-    {% else %}
-    <a href="#" class="button">{{ 'now' | date: "%Y.%m.%d" }}</a>
-    {% endif %}
-
-    {% else %}
-    <a href="#" class="button">{{ 'now' | date: "%Y.%m.%d" }}</a>
-    {% endif %}
-    {% endif %}
 
     <button id="themeTogglePost" class="icon-button" aria-label="Toggle Theme">
       {% include theme-icons.html %}