Steve Yegge 431792b633 fix: Deduplicate nodes in bd dep tree for diamond dependencies ...

Fixes bd-85 (GH-1): bd dep tree was showing duplicate nodes when
multiple paths existed to the same issue (diamond dependencies).

Changes:
- Add path tracking in recursive CTE to detect cycles
- Add cycle prevention via path LIKE check
- Add Go-side deduplication using seen map
- Show each node only once at its shallowest depth

The fix maintains backward compatibility and passes all 37 tests.

Created follow-up issues:
- bd-164: Add visual indicators for multi-parent nodes
- bd-165: Add --show-all-paths flag
- bd-166: Make maxDepth configurable

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

2025-10-14 03:12:00 -07:00

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