feat(server): reexport ValidationError from @orpc/contract

Author: dinwwwh

packages/server/src/index.ts

@@ -18,4 +18,4 @@ export * from './router'
 export * from './router-accessible-lazy'
 export * from './router-client'
 
-export { isDefinedError, ORPCError, safe, type } from '@orpc/contract'
+export { isDefinedError, ORPCError, safe, type, ValidationError } from '@orpc/contract'