fix: better tsconfig extends for monorepos.

[knightedcodemonkey]

No description provided.

[Copilot]

Pull request overview

This PR enhances tsconfig extends support for monorepo setups by expanding the allowed workspace boundary beyond just the project root to include parent and grandparent directories. This enables packages in a monorepo to extend a shared base tsconfig located at the workspace root.

Key Changes:

• Introduced workspace boundary concept with three allowed roots: package root, parent root, and workspace root
• Replaced project root validation with workspace-relative path handling that supports multiple allowed roots
• Updated error messages from "project root" to "allowed workspace boundary" for better clarity

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
src/duel.js	Core implementation: removed normalize import, added allowedConfigRoots logic with helper functions (isInAllowedRoots, toWorkspaceRelative, requireWorkspaceRelative), updated path resolution throughout to use workspace-relative paths instead of project-relative paths
test/integration.js	Added test fixture paths for monorepo-extends scenario, new test case validating monorepo tsconfig extends behavior, updated error message assertion
test/__fixtures__/monorepo-extends/tsconfig.base.json	Base TypeScript configuration for monorepo fixture
test/__fixtures__/monorepo-extends/packages/a/tsconfig.json	Package-level config extending the base config
test/__fixtures__/monorepo-extends/packages/a/src/index.ts	Sample TypeScript source for testing
test/__fixtures__/monorepo-extends/packages/a/package.json	Package manifest for monorepo test fixture

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[codecov]

Codecov Report

❌ Patch coverage is 71.11111% with 26 lines in your changes missing coverage. Please review.
✅ Project coverage is 93.48%. Comparing base (5832598) to head (d4b6603).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/duel.js	71.11%	26 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #101      +/-   ##
==========================================
- Coverage   94.33%   93.48%   -0.86%     
==========================================
  Files           4        4              
  Lines        2031     2071      +40     
==========================================
+ Hits         1916     1936      +20     
- Misses        115      135      +20     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.