🐛 Validate QDMI jobs and SDK execution

[burgholzer]

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Description

Preserve usable QDMI jobs when providers return a warning, and reject unsupported SDK programs before submission. These changes prepare the unreleased v4 plugins using the released QDMI API.

• Share PennyLane validation between QASM2 and QASM3, including finite parameters and fixed-arity placements, and normalize operation metadata once per session.
• Support named-wire deferred measurements, graph decomposition, and standard PennyLane tracking. Require explicit QNode or tape shots instead of the deprecated device-level argument and implicit 1024-shot default.
• Validate Qiskit native width and ordered placements after preprocessing. Reject invalid batches before submission, preserve custom serializers and hidden native sites, and validate operations inside explicitly supported control flow.

Extract the independent deferred-only capability declaration and nested-validation behavior from #2226. Exact payload descriptors, feature inference, and native one-shot execution remain there; no new QDMI dependency is introduced.

Validation: 500 Python QDMI/plugin tests and 104 native driver tests passed. Repository lint and full-file C++ lint passed. Hosted CI is pending. Documentation covers the shot API and validation behavior; no standalone changelog or upgrade entry is added for these unreleased v4 features, following repository guidance.

AI assistance was used for implementation, specialist review, tests, documentation, and this description.

Checklist

• The pull request only contains commits that are focused and relevant to this change.
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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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[burgholzer]

Some more improvements for the PennyLane and Qiskit adapters 🙌