[callumreid]

Regenerate the Python and TypeScript SDKs from coval-ai/docs@d21ed38b3b18341bbec238ba8198186804702152, including review-project skip policy fields, request guidance, simulation-attribute workspace headers, and typed API errors. Python becomes coval-sdk==0.9.2; TypeScript becomes @coval/sdk@0.7.2.

Review found that Python UpdateReviewProjectRequest.from_dict({"display_name":"Renamed"}) emitted omitted fields as explicit nulls, including the new skippable_metric_ids policy. This could reset a policy during an unrelated PATCH. TypeScript deserialization also discarded explicit null for that policy. Deterministic generation patches now preserve omission versus null; regression tests cover omitted, null, empty, and populated values. Both defects reproduced against generated head 680e21c before the fix.

Validation on the final candidate:

• Two complete code-generation passes from the pinned docs revision produced identical TypeScript and Python trees.
• TypeScript build and typecheck passed; 29 tests passed; npm package inspection passed; npm audit found zero vulnerabilities.
• Python: 93 tests passed; wheel and sdist built; twine check passed for both.
• Clean-installed npm tarball and Python wheel regression smoke tests passed.
• No database query changes or migrations.

The Monday 09:00 UTC generation run succeeded: https://github.com/coval-ai/coval-examples/actions/runs/39229653020

After an eligible independent approval and merge, successful SDK CI on current main triggers the existing version-tag workflow, then npm/PyPI trusted publishing. Publication remains unverified until those workflows and registry checks complete. No production release has been dispatched manually.

Fixes COVAL-7887.