fix: remove unused export

Author: danielroe

server/utils/vulnerability-tree.ts

@@ -6,9 +6,6 @@ import type {
 } from '#shared/types'
 import { resolveDependencyTree, type DependencyDepth } from './dependency-resolver'
 
-// Re-export for component type imports
-export type { DependencyDepth } from './dependency-resolver'
-
 /**
  * Vulnerability info for a single package in the tree
  */