fix stat cards: 29 basic skills + infinite self-evolving skills

Replace misleading "36+ Providers" and "Auto Self-Evolving" cards
with skill counts that reflect the actual method: 29 fixed skills
(L1-L14 + H1-H15) and infinite self-evolving skills.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: x-zheng16

index.html

@@ -842,12 +842,12 @@ <h1 class="reveal hero-title font-display font-800 tracking-tight leading-none m
           <div class="stat-label">Verified Accuracy</div>
         </div>
         <div class="stat-card">
-          <div class="stat-num" data-count-to="36" data-count-suffix="+">0</div>
-          <div class="stat-label">Providers</div>
+          <div class="stat-num" data-count-to="29" data-count-suffix="">0</div>
+          <div class="stat-label">Basic Skills</div>
         </div>
         <div class="stat-card">
-          <div class="stat-num" data-count-display="Auto">0</div>
-          <div class="stat-label">Self-Evolving</div>
+          <div class="stat-num" data-count-display="&infin;">0</div>
+          <div class="stat-label">Self-Evolving Skills</div>
         </div>
       </div>
     </div>