Connect VLM bacteria estimate to growth curve (Option B+C)

Rename 'Chemical Risk' to 'Chemical Composition' in risk radar chart

Remove Chinese character entries from Ayurvedic CHEMICAL_DB

Fix piper_longum key typo in CHEMICAL_DB

Fix chemical risk inflation for Ayurvedic/herbal medicines

Simplify to single-column layout: remove multi-drug detection and 3-column UI

Fix parse_quantity to handle edge cases: standalone dot, null, leading-dot decimals

Add multi-drug detection and side-by-side comparison

Reorganize project structure into src/ and tests/