Faint line on home test after ~24 hours

i used to be a very heavy smoker but was clean for about 10 months. my girlfriend bought a cart and i stupidly hit it about three times over the course of the last few weeks, with the last being roughly 24 hours ago.

i used a home test and had a very faint line on my third pee of the day after drinking a decent amount of water. am i likely in the clear? i figured it would take longer to get it out of my system.

i now work a government job and am subject to random tests, never smoking again because this has been way too stressful.