Nutrition
Recipe discovery
Searches Edamam first with Spoonacular fallback; favorites stored under users/{uid}/favorite_recipes.
Implemented Verified from source User-facing
In one sentence
External recipe APIs back the recipes feature with local favorite sync.
Current behavior
Uses EDAMAM_API_KEY / EDAMAM_APP_ID and SPOONACULAR_API_KEY config names.
Favorites persist in Firestore.
Current state
Implemented; verified-from-source.