fix: restore descriptive db path comment and correct ts-jest change description

[Copilot]

Description

Addresses review feedback on #574 where the PR description incorrectly stated "Adds ts-jest" — ts-jest was already a dev dependency; that change was a version bump to ^29.4.6.

Changes:

• scheduler/dailyRefinementJob.ts: Restores the precise comment describing the DB_PATH fallback behavior, replacing the vague // Load environmental or fallback to test.db or production db with the accurate // Use DB_PATH env var if set, otherwise fall back to ../data/issues.db
• Commit message: Explicitly documents that the ts-jest change in Fix Database Path in DailyRefinementJob #574 was a version bump, not a new addition

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

Clarifies DailyRefinementJob DB path behavior by updating the comment to: Use DB_PATH env var if set, otherwise fall back to ../data/issues.db. Also clarifies feedback from PR #574 — ts-jest was already present; that change was a version bump, not a new addition.

^{Written for commit bc53077. Summary will update on new commits.}