Steve Yegge f6a75415a5 fix: Propagate blocking through parent-child hierarchy [fixes #19] ...

When an epic is blocked, all its children should also be considered
blocked in the ready work calculation. Previously, only direct blocking
dependencies were checked, allowing children of blocked epics to appear
as ready work.

Implementation:
- Use recursive CTE to propagate blocking from parents to descendants
- Only 'parent-child' dependencies propagate blocking (not 'related')
- Changed NOT IN to NOT EXISTS for better NULL safety and performance
- Added depth limit of 50 to prevent pathological cases

Test coverage:
- TestParentBlockerBlocksChildren: Basic parent→child propagation
- TestGrandparentBlockerBlocksGrandchildren: Multi-level depth
- TestMultipleParentsOneBlocked: Child blocked if ANY parent blocked
- TestBlockerClosedUnblocksChildren: Dynamic unblocking works
- TestRelatedDoesNotPropagate: Only parent-child propagates

Closes: https://github.com/steveyegge/beads/issues/19
Resolves: bd-58

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Co-Authored-By: Claude <noreply@anthropic.com>

2025-10-14 13:02:12 -07:00

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