chore: trigger rebuild to ensure downloadFile function is recognized

Author: MatrixCQY

src/components/sidebar.tsx

@@ -79,7 +79,7 @@ interface FileTreeNodeProps {
 }
 
 function FileTreeNode({ node, fileSystem, depth }: FileTreeNodeProps) {
-  const { files, selectFile, activeFileId, toggleFolder, deleteNode, renameNode, createFile, createFolder } = fileSystem;
+  const { files, selectFile, activeFileId, toggleFolder, deleteNode, renameNode, createFile, createFolder, downloadFile } = fileSystem;
   const [isHovered, setIsHovered] = useState(false);
 
   const isActive = activeFileId === node.id;

src/hooks/use-file-system.ts

@@ -24,6 +24,7 @@ export interface FileSystemContextType {
   selectFile: (id: string) => void;
   toggleFolder: (id: string) => void;
   searchFiles: (query: string) => FileNode[];
+  downloadFile: (id: string) => void;
 }
 
 const STORAGE_KEY = 'mathstudio-fs-v1';