Regression workflow: add failure promotion modal

[Atharva-Kanherkar]

Summary

• add regression promotion API helpers and a deep link that pre-opens the create-suite modal for the source pack
• add a Promote action on run failure rows with a promotion modal, advanced validator override controls, and idempotent "Already promoted - open case" handling
• add focused component coverage for the promote dialog's new/idempotent/error branches and empty-state deep link
• remove the issue-324 review-checkpoint contract from the repo and ignore that transient file path so it does not reappear in the PR
• clear a pre-existing unused-type lint warning so pnpm lint is clean on this branch

Validation

• pnpm lint
• pnpm exec tsc --noEmit
• pnpm test

Manual curl verification

• Brought up the local stack against local Postgres/Redis + Temporal + API + worker.
• Seeded the deterministic local fixture with ./scripts/dev/seed-local-run-fixture.sh.
• Seeded a completed local run/failure-review fixture directly in Postgres to exercise the promote endpoint over HTTP.
• GET /v1/workspaces/22222222-2222-2222-2222-222222222222/runs/12121212-1212-1212-1212-121212121212/failures returned a promotable failure for challenge 66666666-6666-6666-6666-666666666666.
• POST /v1/workspaces/22222222-2222-2222-2222-222222222222/regression-suites returned 201 and created suite 0b23d391-afff-432c-8ca2-ac541bee401b.
• First POST /v1/workspaces/22222222-2222-2222-2222-222222222222/runs/12121212-1212-1212-1212-121212121212/failures/66666666-6666-6666-6666-666666666666/promote returned 201 and created case 49ca72c1-5f0c-4e06-adff-ec2061ca4e7c.
• Second identical promote request returned 200 with the same case id 49ca72c1-5f0c-4e06-adff-ec2061ca4e7c, confirming the idempotent repost path.
• GET /v1/workspaces/22222222-2222-2222-2222-222222222222/regression-suites/0b23d391-afff-432c-8ca2-ac541bee401b/cases shows the promoted case persisted in the target suite.

Notes

• This intentionally excludes the create-run regression-suite selector because backend support for regression_suite_ids[] / regression_case_ids[] is not on main yet.
• Local POST /v1/runs still deadlocked once on this machine during manual stack work (load runnable challenge pack version: ... deadlock detected), so the promotion curl verification used a direct local DB seed for the completed run/failure-review fixture while still exercising the real HTTP suite/failures/promote endpoints end-to-end.

Closes #324

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Project	Deployment	Actions	Updated (UTC)
agentclash	Ready	Preview, Comment	Apr 19, 2026 10:46am