chore(main): release 1.22.0 - #687

🤖 I have created a release beep boop

1.22.0 (2026-11-13)

Features

• container: case runner, backend interface and cancellation for per-case containers (5b76345)
• container: case spec, config schema and pool router for per-case containers (9229969)
• container: case spec, config schema and pool router for per-case containers (67bb209)
• dataset_quality: tell judges about success_criteria (#685) (1523a53)

Bug Fixes

• auth: use Workload Identity instead of the GKE SA key (#703) (1ff849f)
• dataset_quality: don't count withheld data as Incomplete Result (926c9cf)
• dataset_quality: don't count withheld data as Incomplete Result (1c40016)
• gemini_cli: resume follow-up turns by session ID (#699) (f7f909d)
• gke: add health probes and make the deploy single-pod safe (0ce5185)
• scorers: raise on malformed goal_completion judge replies (#701) (b6023ba)
• sessionmgr: remove a symlinked session entry instead of walking it (#708) (21f7a5c)

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