feat: integrate DSH Filebrowser (pinned v2.32.0, dark mode, toggle selector UI from Claude Design, /u/nabil/files/ proxy)

app/templates/index.html

@@ -21,6 +21,7 @@
           data-name="{{ u.name }}"
           data-scope="{{ u.scope }}"
           data-tagline="{{ u.tagline }}"
+          data-supports-files="{{ 'true' if u.supports_files else 'false' }}"
           style="--item-accent: var({{ u.accent_token }});"
         >
           <div class="hub-universe-avatar">
@@ -60,7 +61,20 @@
       </div>
       
       <div class="hub-topbar-right">
-        <span style="font-size: 0.75rem; color: var(--hub-text-muted);">Session sécurisée VPS ↔ NAS</span>
+        <!-- Sélecteur Toggle Mode DSH (Claude Design - Univers Nabil) -->
+        <div id="nabil-mode-toggle" role="tablist" aria-label="Mode du canvas" class="hub-mode-toggle">
+          <button id="tab-session" role="tab" aria-selected="true" class="hub-mode-tab active" type="button">
+            <svg width="15" height="15" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.2" stroke-linecap="square"><path d="M21 15a2 2 0 0 1-2 2H7l-4 4V5a2 2 0 0 1 2-2h14a2 2 0 0 1 2 2z"></path></svg>
+            <span>Session</span>
+          </button>
+          <div class="hub-mode-divider"></div>
+          <button id="tab-files" role="tab" aria-selected="false" class="hub-mode-tab" type="button">
+            <svg width="15" height="15" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.2" stroke-linecap="square"><path d="M4 20h14a2 2 0 0 0 2-2V9H12L10 6H4a1 1 0 0 0-1 1v12a1 1 0 0 0 1 1z"></path></svg>
+            <span>Explorateur DSH</span>
+          </button>
+        </div>
+
+        <span id="hub-security-badge" style="font-size: 0.75rem; color: var(--hub-text-muted);">Session sécurisée VPS ↔ NAS</span>
       </div>
     </header>