feat: diagnostics

[tmlmt]

Description

Adds diagnostics throughout the library, to provide better insights into warnings and errors encountered by the parser.

Related Issue:

• N/A (if no related issue)

Type of change

Please delete options that are not relevant.

• 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)
• Enhancement (refactoring, style or performance improvement)
• Chore (maintenance tasks, dependency updates, or tooling changes that don't affect functionality)
• Documentation change (improvement to the Vitepress documentation or playground)

Breaking Changes

If this is a breaking change, please describe:

• What functionality is affected
• How users should migrate their code
• What the new API/behavior looks like
• Version compatibility impact

Checklist:

• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have run pnpm lint and my changes generate no new warnings
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

[tmlmt]

• feat: diagnostics #109 👈 (View in Graphite)
• build(deps)!: upgrade dev tools and require node 22 #110
• feat(parser): normalize full-width input syntax #108
• fix(parseTimeToMinutes): support Japanese time unit aliases #107
• feat(render-helpers): add optional unit-first quantity formatting #106
• v3

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