Remove epitomic/graph banners; update fidelity distribution figure

frontend/src/components/datasets/protein/ProteinDashboard.tsx

@@ -344,13 +344,6 @@ export function ProteinDashboard() {
                 </p>
               </section>
 
-              {/* Banner image above the search box — no title, no frame */}
-              <img
-                src="/api/protein/plots/epitomic.png?v=20260622"
-                alt=""
-                style={{ width: '100%', maxWidth: '640px', height: 'auto', display: 'block', margin: '0 auto' }}
-              />
-
               {/* Search Panel Full Width */}
               <section className="border border-gray-200 rounded-2xl p-6 bg-white shadow-sm hover:border-slate-900 hover:shadow-lg hover:-translate-y-0.5 transition-all duration-300">
                 <FilterPanel
@@ -370,13 +363,6 @@ export function ProteinDashboard() {
                 />
               </section>
 
-              {/* Graph image between search box and statistics — no title, no frame */}
-              <img
-                src="/api/protein/plots/graph.png?v=20260622"
-                alt=""
-                style={{ width: '100%', height: 'auto', display: 'block' }}
-              />
-
               {/* Default Dataset Summary View */}
               <section className="border border-gray-200 rounded-2xl p-6 bg-white shadow-sm hover:border-slate-900 hover:shadow-lg hover:-translate-y-0.5 transition-all duration-300">
                 <StatsPanel />

frontend/src/components/datasets/protein/StaticDistributionPlots.tsx

@@ -1,7 +1,7 @@
 import React from 'react';
 
 const IMG_BASE = '/api/protein/plots';
-const CACHE_BUST = '?v=20260622b';
+const CACHE_BUST = '?v=20260622c';
 
 const plots = [
   { name: 'Structure Similarity', file: 'Structure-similarity.png' },