Who actually enforces the AI Act on the ground?

The AI Act looks tidy on paper, but most enforcement work lands on national market surveillance authorities that are already stretched thin. I keep seeing the same gap: large labs have compliance teams, while a hospital buying a triage tool or a school licensing a grading assistant has no idea who to call when something goes wrong. The high-risk deadlines are creeping closer and plenty of SMEs still assume the rules only touch foundation model providers. Has