feat: expand categories to 8 (add Education & Travel)

Added: Education & Learning, Travel & Maps
Updated stats counter from 10+ to 8
All 17 languages translated for new categories

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: KEN0421

index.html

@@ -298,7 +298,7 @@ <h1 data-i18n-html="hero_title">Innovative <span class="gradient">Mobile Experie
     <div class="stat-label" data-i18n="stat_platforms">Platforms</div>
   </div>
   <div class="stat">
-    <div class="stat-number">10+</div>
+    <div class="stat-number">8</div>
     <div class="stat-label" data-i18n="stat_categories">App Categories</div>
   </div>
 </div>
@@ -340,6 +340,16 @@ <h3 data-i18n="cat_productivity">Productivity &amp; Finance</h3>
       <h3 data-i18n="cat_social">Social &amp; Fun</h3>
       <p data-i18n="cat_social_desc">Roulette pickers for movies, dates, dinners, and study topics. Party games, compatibility quizzes, and friend challenges.</p>
     </div>
+    <div class="category">
+      <div class="category-icon">&#x1F393;</div>
+      <h3 data-i18n="cat_education">Education &amp; Learning</h3>
+      <p data-i18n="cat_education_desc">Language learning, ear training, photo-based vocabulary, and study tools. Build skills with daily practice and streak tracking.</p>
+    </div>
+    <div class="category">
+      <div class="category-icon">&#x2708;&#xFE0F;</div>
+      <h3 data-i18n="cat_travel">Travel &amp; Maps</h3>
+      <p data-i18n="cat_travel_desc">Safety maps, city guides, EV charger finders, wait time trackers, and local food discovery. Explore the world with confidence.</p>
+    </div>
   </div>
 </section>