docs(changelog): add privacy policy and v0.1.2 release notes

src/pages/changelog.astro

@@ -33,14 +33,31 @@ import BaseLayout from '../layouts/BaseLayout.astro';
           </div>
           
           <div class="version-content">
+            <div class="changes-section">
+              <h3 class="changes-title">
+                <span class="changes-icon">✨</span>
+                New Features
+              </h3>
+              <ul class="changes-list">
+                <li><strong>Git graph visualization.</strong> Implemented a Git graph of the 50 latest commits with a details popup for viewing commit information.</li>
+              </ul>
+            </div>
+
+            <div class="changes-section">
+              <h3 class="changes-title">
+                <span class="changes-icon">🔄</span>
+                Improvements
+              </h3>
+              <ul class="changes-list">
+                <li><strong>Git performance.</strong> Replaced most external <code>git</code> calls with <code>gix</code> for faster, more efficient Git operations.</li>
+              </ul>
+            </div>
             <div class="changes-section">
               <h3 class="changes-title">
                 <span class="changes-icon">📦</span>
                 Dependencies Updated
               </h3>
               <p class="updates-intro">Comprehensive dependency upgrade across frontend and Rust ecosystem.</p>
-              
-              <h4 class="subsection-title">Frontend Packages (bun)</h4>
               <table class="updates-table">
                 <thead>
                   <tr>