Ensures no duplicates when left and right independently add the same dependency (not in base). Left version is preferred. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Ensures no duplicates when left and right independently add the same dependency (not in base). Left version is preferred. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>