if it was me, i would think that the front wheel rim is not centered on the hub. if true, it's fixable and doesn't necessitate a new fork. it's easy to make that mistake on a first wheel build.

to determine whether that is the problem or not, i might try remounting the front wheel with wheel reversed in the fork. and check for alignment again. if the hub is now closer to the other fork tine, your rim is not centered on the hub and needs to be adjusted.