docs(changelog): bump to v0.3.4, update date and badges

Update package version and changelog to reflect the latest release.

package.json

@@ -1,7 +1,7 @@
 {
   "name": "zblade-dev",
   "type": "module",
-  "version": "0.3.3",
+  "version": "0.3.4",
   "scripts": {
     "dev": "astro dev",
     "start": "astro dev",

src/pages/changelog.astro

@@ -25,13 +25,13 @@ import BaseLayout from '../layouts/BaseLayout.astro';
     <!-- v0.3.4 Section -->
     <section class="changelog-section">
       <div class="container">
-        <div class="version-card version-development">
+        <div class="version-card version-latest">
           <div class="version-header">
             <div class="version-info">
               <h2 class="version-number">v0.3.4</h2>
-              <span class="version-date">TBD</span>
+              <span class="version-date">2026-03-05</span>
             </div>
-            <span class="version-badge badge-development">Development</span>
+            <span class="version-badge badge-latest">Latest</span>
           </div>
           
           <div class="version-content">
@@ -89,13 +89,13 @@ import BaseLayout from '../layouts/BaseLayout.astro';
     <!-- v0.3.3 Section -->
     <section class="changelog-section">
       <div class="container">
-        <div class="version-card version-latest">
+        <div class="version-card version-previous">
           <div class="version-header">
             <div class="version-info">
               <h2 class="version-number">v0.3.3</h2>
               <span class="version-date">February 28, 2026</span>
             </div>
-            <span class="version-badge badge-latest">Latest</span>
+            <span class="version-badge badge-previous">Previous</span>
           </div>
           
           <div class="version-content">