## Summary
- Add `onConsoleLog` handler in vitest config to suppress all console
output from tests (retry logs, settings errors, processor warnings)
- Set `NODE_OPTIONS=--no-deprecation` to suppress punycode `DEP0040`
warnings from vitest worker processes
- Set `VITE_CJS_IGNORE_WARNING=true` to suppress Vite CJS API
deprecation warning

#skip-bugbot

## Test plan
- Run `npm test` and verify clean output with no stderr noise
- Verify all 810 tests still pass

🤖 Generated with [Claude Code](https://claude.com/claude-code)
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Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>