Allows reparenting issues to a different epic/parent:
bd update bd-xyz --parent=bd-epic
Implementation:
- Add Parent field to UpdateArgs in protocol.go
- Handle reparenting in RPC handler (server_issues_epics.go)
- Add --parent flag to updateCmd with both daemon and direct mode support
- Remove old parent-child dependency before adding new one
- Pass empty string to remove parent entirely
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>