fix(mcp): preserve pagination in fetch-graph-data structuredContent

Keep pagination metadata in the graph view response for paginated callers and e2e tests.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/mcp/src/server/tools/fetch-graph-data.ts

@@ -51,6 +51,7 @@ export function register(deps: ToolDeps) {
 					containerTag: effectiveTag,
 					documents: data.documents,
 					totalCount: data.pagination.totalItems,
+					pagination: data.pagination,
 				}
 
 				return {

apps/mcp/src/shared/types.ts

@@ -91,6 +91,7 @@ export type ViewMessage =
 			documents: DocumentWithMemories[]
 			totalCount: number
 			containerTag?: string
+			pagination?: DocumentsApiResponse["pagination"]
 	  }
 	| {
 			view: "error"