The CATEGORY_MAP was based on BLS 3.x letter codes which were completely
reshuffled in version 4.0. This caused wrong categories like Schwarztee
showing "Wurstwaren" instead of "Getränke". Remapped all 20 letter codes
to match actual BLS 4.0 Hauptlebensmittelgruppen and regenerated blsDb.
Dual-source nutrition system using BLS (German, primary) and USDA (English, fallback)
with ML embedding matching (multilingual-e5-small / all-MiniLM-L6-v2), hybrid
substring-first search, and position-aware scoring heuristics.
Includes per-recipe and global manual ingredient overwrites, ingredient skip/exclude,
referenced recipe nutrition (base refs + anchor tags), section-name dedup,
amino acid tracking, and reactive client-side calculator with NutritionSummary component.
