A framework is a core set of classes, the conventions around them, and someone enforcing both. Its product is that every team's code has the same shape, so anyone can review anyone's work and the next platform change is three edits, not every class. That only holds if someone owns it.
A delivery partner sells speed, capacity and accountability, and those are real. You pay with knowledge, design authority and the ability to judge the work, none of which appears on the invoice, and whether that trade suits you is knowable up front.
A linter is a smoke alarm and an LLM is a building inspector. Keep linting as the deterministic gate (security rules on every touched file, everything else on changed lines) and let the model review intent and suggest repairs that go back through the same gate.