v0.77.1 — Testing Category Colours Restored

Summary: Restores the distinct semantic drug-category colour palette across light and dark themes for all ten testing categories, protected by comprehensive regression tests.

Fixed

• Restored semantic drug-category colour palette — Reinstates the distinct semantic category tokens across all ten drug categories in both light and dark themes, restoring visual distinction across testing plans, workbenches, and reports.

Added

• Category theme regression tests — Adds automated regression tests in constants.test.ts verifying unique class mappings across all drug categories and distinct CSS token definitions in index.css for both light and dark themes.