ui: show file names instead of full paths in shares

frontend/app.js

@@ -2702,6 +2702,20 @@ handleDragLeave(e) {
       return normalized.startsWith('/') ? normalized : `/${normalized}`;
     },
 
+    getPathBaseName(pathValue, preferredName = '') {
+      if (typeof preferredName === 'string' && preferredName.trim()) {
+        return preferredName.trim();
+      }
+
+      const normalized = this.normalizeSharePath(pathValue || '/');
+      if (normalized === '/') {
+        return '/';
+      }
+
+      const segments = normalized.split('/').filter(Boolean);
+      return segments.length > 0 ? segments[segments.length - 1] : '/';
+    },
+
     isShareAllFiles(share) {
       if (!share) return false;
       const shareType = share.share_type || 'file';