chore(sdk): regenerate from openapi@main

[github-actions]

Automated SDK regeneration.

• archastro-openapi ref: main
• generator version: 0.5.0 resolved from npm latest and locked in package-lock.json
• changed files: 10

Review the diff carefully — generator output changes can be subtle. The PR's CI will run lint + tests.

[archastro]

✅ Clean PR, @github-actions[bot]! No blocking findings on 09f944b — a few nice things I clocked:

• Followed python-sync-async-client-split cleanly — new POST /api/v1/files emits both AsyncFileResource.create and sync FileResource.create with matching contract tests. 🎯
• Nice red-green coverage on the new optimistic-concurrency 409 path — both test_agents_upgrade_error_409 and its @pytest.mark.asyncio async twin lock the expected_review_fingerprint contract. 🙌
• Preserved wire-key fidelity across the regen — AgentSourceSolution/SolutionSummary carry server-scoped owners/upgrade_available exactly as the platform contract documents, no SDK-side scope decisions invented.

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