Fix PR description: ts-jest change was a version bump, not an addition

[Copilot]

PR #574 description inaccurately stated "Adds ts-jest" — ts-jest was already present; the change was a version bump of Jest-related devDependencies alongside the dbPath fix.

Description

Corrects the PR #574 description language: replaces "Adds ts-jest" with accurate framing that ts-jest, @types/jest, and jest-util were bumped to latest patch versions to restore npm test functionality — not introduced as new dependencies.

Type of Change

• 🐛 Bug fix (non-breaking change which fixes an issue)
• ✨ New feature (non-breaking change which adds functionality)
• 💥 Breaking change (fix or feature that would cause existing functionality to not work as expected)
• 📝 Documentation update
• 🎨 Code style update (formatting, renaming)
• ♻️ Refactoring (no functional changes)
• ⚡ Performance improvement
• ✅ Test update

Related Issue

Testing Done

• Tested locally
• Added/updated tests
• All tests passing

Screenshots (if applicable)

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• Any dependent changes have been merged and published

Co-Authors

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Summary by cubic

Improves database path handling in DailyRefinementJob to prevent path-related failures and make configuration consistent across environments. Fixes issues on Windows and when the job runs from a different working directory.

• Bug Fixes

  • Normalize and validate the database path at startup, with a clear error if missing or unreadable.
  • Fallback to DATABASE_URL when DATABASE_PATH is not set, and fix path joining across POSIX/Windows.

• Refactors

  • Centralized path resolution in a shared getDatabasePath() helper and reused it in DailyRefinementJob.
  • Added tests for path resolution and a single startup log showing the resolved path.

^{Written for commit 252c221. Summary will update on new commits.}