[unic-archon-dlc] QA workflow — e2e, coverage gate, UAT, merge

[orioltf]

Parent

docs/issues/unic-archon-dlc/PRD.md

What to build

A qa workflow that runs the e2e suite first, fails fast on insufficient coverage, presents an informed UAT checklist, and merges the PR via the tracker's CLI after sign-off.

In scope:

• /unic-dlc-qa <slug> command and .archon/workflows/qa.yaml.
• E2e suite runs first. Uses the e2e_command configured during install (slice 02). If unset, the workflow halts with a clear message asking the user to run install with --reconfigure and set the command.
• coverage-gate bash node enforces the coverage thresholds configured in .archon/unic-dlc.config.json. Fails fast — the human UAT gate never opens unless automated coverage already passes.
• uat-gate interactive node: presents e2e results alongside the UAT checklist extracted from the PRD's acceptance criteria. Approval continues to merge; rejection returns control to whoever owns the failing checklist item.
• Merge step via tracker adapter: after uat-gate approves, the workflow merges the PR using the configured tracker's CLI (no manual terminal commands required). Branch deletion follows the configured branching strategy (Gitflow vs GitHub Flow).
• All workflow YAML uses canonical label names; the adapter translates at write time.

Out of scope: post-merge cleanup (slice 13).

Acceptance criteria

• /unic-dlc-qa <slug> runs the configured e2e_command before any human gate opens.
• If e2e_command is unset, the workflow halts with a clear, actionable message and a non-zero exit.
• coverage-gate blocks uat-gate when coverage is below threshold.
• uat-gate shows the PRD's acceptance criteria as a checklist alongside the e2e summary.
• After uat-gate approves, the PR is merged via the tracker adapter; branch handling matches the configured branching strategy.
• Command file uses the unic-dlc- prefix.

Blocked by

• [unic-archon-dlc] Triage workflow and tracker adapter #103
• [unic-archon-dlc] Build workflow — verification, goals-check, report, and PR gate #110

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PRD: docs/issues/unic-archon-dlc/PRD.md
Migrated from: docs/issues/unic-archon-dlc/12-qa-workflow.md (source removed after migration)
Touched by PRs: #33