chore(qsl): adopt compatibility bundle 2026.07.4

[Pigbibi]

Summary

• adopt central QSL compatibility bundle 2026.07.4
• no runtime, order, deploy, or secret changes

Validation

• metadata-only change; existing repository CI and Codex review gate are required

[github-actions]

🤖 Codex PR Review

✅ Merge allowed: No issues found

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Review by Codex PR Review bot • PR

[chatgpt-codex-connector]

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Reviewed commit: 57d3940fc4

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[chatgpt-codex-connector]

Update the bundle assertion with this metadata bump

Changing the bundle to 2026.07.4 leaves the checked-in metadata test expecting 2026.07.3 in tests/test_qsl_metadata.py:17; I ran python -m pytest tests/test_qsl_metadata.py -q and it fails with this exact mismatch. Any CI workflow that runs the test suite will reject this metadata-only change until the assertion is updated or made to follow the new bundle value.

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