✨ Bundle reusable IQM Garnet and Emerald device models

[burgholzer]

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Description

Bundle reusable superconducting-device snapshots for IQM Garnet and Emerald.
The SC provider now exposes them through the stable registry IDs
mqt.sc.iqm.garnet and mqt.sc.iqm.emerald, while preserving the existing
default model.

The snapshots include the reported site names, topology, r, cz, and
measure capabilities, available T1/T2 values, and available per-locus
fidelities. Operation durations are absent because the source interface did not
report them. The files contain no credentials, service URLs, calibration-set
identifiers, or raw service responses.

This also extends the reusable QDMI CMake helper so one provider library can
register multiple configuration-backed device IDs and install/copy every
runtime asset relocatably. The SC schema and provider expose optional site
names.

This is the independent IQM-01 workstream of the QDMI–Compiler integration
series that will culminate in #1687.

Validation

• Full repository lint
• SC provider/configuration tests: 41 passed; one pre-existing optional test skipped
• QDMI registry tests: 15 passed
• QDMI driver tests: 114 passed
• Runtime-file, packaging, and helper rejection tests: 8 passed
• Runtime component install smoke, asset/count checks, and secret scan

Checklist

• The pull request only contains commits that are focused and relevant to this change.
• I have added appropriate tests that cover the new/changed functionality.
• I have updated the documentation to reflect these changes.
• I have added entries to the changelog for any noteworthy additions, changes, fixes, or removals.
• I have added migration instructions to the upgrade guide (if needed).
• The changes follow the project's style guidelines and introduce no new warnings.
• The changes are fully tested and pass the CI checks.
• I have reviewed my own code changes.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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