fix: compute macro targets dynamically from protein goal and body weight

Fat/carb percentages were stored as absolute values that didn't account
for protein g/kg varying with body weight. Now protein calories are
computed first, and remaining calories are split between fat and carbs
by their stored ratio — guaranteeing all macros sum to the calorie goal.

Exercise burned calories also flow into fat/carb targets via a new
effectiveCalorieGoal derived. Goal editor ring preview and labels
updated to show computed actual percentages.

package.json

@@ -1,6 +1,6 @@
 {
 	"name": "homepage",
-	"version": "1.23.3",
+	"version": "1.23.4",
 	"private": true,
 	"type": "module",
 	"scripts": {