feat: import jen některých dnů

feat: násobení jídel/cviků
feat: refaktor napojování šablon

types/api.yml

@@ -22,6 +22,8 @@ paths:
     $ref: "./paths/meals/update.yml"
   /meals/delete:
     $ref: "./paths/meals/delete.yml"
+  /meals/multiplier:
+    $ref: "./paths/meals/multiplier.yml"
 
   # Statistiky (/api/stats)
   /stats/summary:
@@ -40,6 +42,8 @@ paths:
     $ref: "./paths/activities/update.yml"
   /activities/delete:
     $ref: "./paths/activities/delete.yml"
+  /activities/multiplier:
+    $ref: "./paths/activities/multiplier.yml"
 
   # Šablony tréninků (/api/workouts)
   /workouts: