[Feature] CI Coverage Integration

[viiccwen]

What

Integrate coverage generation and enforcement into CI (codecov).

Why

Even if coverage exists locally, without CI enforcement it won’t be effective.
We need automated verification.

How

• Run tests (Python + Rust)
• Generate coverage reports
• Enforce minimum coverage threshold
• Upload coverage artifacts

[SuyashParmar]

@viiccwen can i work on this ?

[viiccwen]

@SuyashParmar IMO, recommend u to increase the code coverage in QDP. : )
It'll be easier and nice to have.

[rawkintrevo]

This is pretty easy todo, the harder part is setting the minimums. Is there discussion anywhere for doing that? Or is the idea to just set it up, set the minimums at whereever they are currently then slowly ratchet them up over time?