Add daily nutrition summary to daily log page

Calculates and displays total calories, protein, carbs, and fat for the current day on the daily log page. Updates both the route logic and the template to show these nutritional totals in a formatted overview.

application/user/routes.py

@@ -77,10 +77,24 @@ def daily_log():
     today = datetime.now(timezone.utc).date()
     logs_today = current_user.food_logs.filter_by(date_=today).all()
     logs = [[], [], [], []]
+    calories: float = 0
+    protein: float = 0
+    carbs: float = 0
+    fat: float = 0
     for log in logs_today:
         logs[log.part_of_day].append(log)
+        calories += log.amount * log.food_item.energy_100 / 100
+        protein += log.amount * log.food_item.protein_100 / 100
+        carbs += log.amount * log.food_item.carbs_100 / 100
+        fat += log.amount * log.food_item.fat_100 / 100
     return render_template(
-        "daily_log.html", date=(today.strftime("%d/%m/%y")), logs=logs
+        "daily_log.html",
+        date=(today.strftime("%d/%m/%y")),
+        logs=logs,
+        calories=calories,
+        protein=protein,
+        carbs=carbs,
+        fat=fat,
     )