This implements Phase 1 of the Step.Gate feature (bd-7zka.2):
- bd cook now creates gate issues for steps with gate fields
- Gate issues have type=gate and block the gated step via dependency
- bd list filters out gate issues by default (use --include-gates to show)
- New bd gate command with list and resolve subcommands
Gate types supported in Phase 1:
- human: Manual closure via bd close or bd gate resolve
Implementation details:
- createGateIssue() in cook.go creates gate issues with proper metadata
- collectSteps() creates gate dependencies when processing gated steps
- IssueFilter.ExcludeTypes added to storage layer for type-based filtering
- Gate command provides dedicated UX for gate management
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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