fix: Phase 0b - map German to English category names

backend/calculations/scores.py

@@ -104,11 +104,31 @@ def map_focus_to_score_components() -> Dict[str, str]:
     }
 
 
+def map_category_de_to_en(category_de: str) -> str:
+    """
+    Map German category names to English database names
+    """
+    mapping = {
+        'körper': 'body_composition',
+        'ernährung': 'nutrition',  # Note: no nutrition category in DB, returns empty
+        'aktivität': 'training',
+        'recovery': 'recovery',
+        'vitalwerte': 'health',
+        'mental': 'mental',
+        'lebensstil': 'health',  # Maps to general health
+    }
+    return mapping.get(category_de, category_de)
+
+
 def calculate_category_weight(profile_id: str, category: str) -> float:
     """
     Calculate total weight for a category
+    Accepts German or English category names
     Returns sum of all focus area weights in this category
     """
+    # Map German to English if needed
+    category_en = map_category_de_to_en(category)
+
     focus_weights = get_user_focus_weights(profile_id)
 
     with get_db() as conn:
@@ -117,7 +137,7 @@ def calculate_category_weight(profile_id: str, category: str) -> float:
             SELECT key
             FROM focus_area_definitions
             WHERE category = %s
-        """, (category,))
+        """, (category_en,))
 
         focus_areas = [row['key'] for row in cur.fetchall()]