fix(frontend): resolve TypeScript compiler errors in WorkspaceView and types

frontend/src/lib/types.ts

@@ -157,12 +157,15 @@ export type BlockType = 'h1' | 'h2' | 'h3' | 'paragraph' | 'todo' | 'bullet' | '
 
 export interface DocumentBlock {
   id: string;
+  docId?: string;
   type: BlockType;
   content: string;
   checked?: boolean;
   lang?: string;
   level?: number;
   collapsed?: boolean;
+  sortOrder?: number;
+  updatedAt?: string;
 }
 
 export interface DocBlocksPatchRequest {