feat(tests): rename run key flag

[ischolten]

Summary

• rename depot tests run --key to --report-key
• keep --split-key independent and preserve depot tests report --key
• clarify report-key descriptions and reject the legacy run flag

---

Note

Medium Risk
Breaking CLI rename for depot tests run will fail workflows still passing --key; scope is limited to flag naming and docs, not upload or split logic.

Overview
Renames the report invocation flag on depot tests run from --key to --report-key, with the internal option field renamed from key to reportKey. Upload behavior is unchanged: the value still flows into report upload as the invocation id, separate from --split-key.

depot tests report keeps --key; both commands now share the same help wording: the key is for distinguishing multiple report uploads in one CI run. Tests for run were updated to pass --report-key instead of --key.

Breaking: CI or scripts that still use depot tests run --key must switch to --report-key; there is no legacy alias in this change.

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Approved: Cursor Bugbot and Cursor Security Agent both passed on the latest commit, and the prior Bugbot finding was resolved. No reviewers assigned.

  

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