feat(cli): exit codes + JSON-on-pipe + idempotency + progress events (AIP Phase 4)#18

Merged

igor-ctrl merged 6 commits into

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feat/standardize-cli

May 17, 2026

Commits on May 17, 2026

feat(exit-codes): wire AIP §Phase 4a taxonomy + project in describe
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feat(output): JSON on non-TTY by default (AIP §Phase 4b)
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feat(errors): centralized did-you-mean error handler (AIP §Phase 4c)
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feat(idempotency): --idempotency-key on write verbs + ledger v2 (AIP §Phase 4d)
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feat(progress): JSON step events to --progress-fd (AIP §Phase 4e)
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fix(idempotency): seed state config in CLI tests + wire same-run dedup
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