Sync v8.1.42: docs site launch, examples/benchmarks/contributing pages, doc-example CI tests

Sync: MkDocs documentation site + GitHub Pages deploy

Sync v8.1.41: pytest-cov coverage tracking, 84.1% -> 94.4%

Sync v8.1.40: full jax.jit coverage for dense_evolution.mitigation

Sync v8.1.39: jax.jit-compatible project_to_physical/uhlmann_fidelity

Sync v8.1.38 final: polynomial_extrapolate, fixed-budget robustness gain

Sync v8.1.39: correct phaseflip/amplitude_damping finding (was Monte Carlo undersampling)

Sync v8.1.38: broader qubit/noise-type sweep for density-matrix ZNE healing

Sync v8.1.37: density-matrix ZNE healing

Sync dense_evolution/ from v8.1.35

Sync dense_evolution/ from v8.1.33

release: 8.1.25 - flag silent jsd_budget violations in MPSSimulator

release: 8.1.24 - fix complex-value crash, spurious warning, misleading healing flag

Sync package with GitHub Dense-Evolution main (MPS engine + anti-OOM chunk routing)

Sync package with GitHub Dense-Evolution v8.1.21

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