feat: večeře (extra meal slot)

- Nová stránka /vecere pro evidenci extra jídla (večeře/pozdní oběd)
- MealSlot enum (obed/extra), oddělený storage namespace YYYY-MM-DD_extra
- slot parametr na všech food endpointech a GET /api/data
- Push reminder: přechod na 60min cooldown, login v payloadu místo endpointu
- server: slot?: string → slot?: MealSlot, enum konstanty místo literálů
- Jest testy izolace extra/obed storage namespace
- Aktualizace changelogů (saláty, SINGLE_PAYMENT, večeře)

client/src/App.tsx

@@ -19,7 +19,7 @@ import { getHumanDateTime, isInTheFuture, formatDateString } from './Utils';
 import NoteModal from './components/modals/NoteModal';
 import PayForAllModal from './components/modals/PayForAllModal';
 import { useEasterEgg } from './context/eggs';
-import { ClientData, Food, PizzaOrder, DepartureTime, PizzaDayState, Restaurant, RestaurantDayMenu, RestaurantDayMenuMap, LunchChoice, LocationLunchChoicesMap, UserLunchChoice, PizzaVariant, getData, getEasterEggImage, addPizza, removePizza, updatePizzaDayNote, createPizzaDay, deletePizzaDay, lockPizzaDay, unlockPizzaDay, finishOrder, finishDelivery, addChoice, jdemeObed, removeChoices, removeChoice, updateNote, changeDepartureTime, setBuyer, dismissQr, generateQr } from '../../types';
+import { ClientData, Food, MealSlot, PizzaOrder, DepartureTime, PizzaDayState, Restaurant, RestaurantDayMenu, RestaurantDayMenuMap, LunchChoice, LocationLunchChoicesMap, UserLunchChoice, PizzaVariant, getData, getEasterEggImage, addPizza, removePizza, updatePizzaDayNote, createPizzaDay, deletePizzaDay, lockPizzaDay, unlockPizzaDay, finishOrder, finishDelivery, addChoice, jdemeObed, removeChoices, removeChoice, updateNote, changeDepartureTime, setBuyer, dismissQr, generateQr } from '../../types';
 import { getLunchChoiceName } from './enums';
 // import FallingLeaves, { LEAF_PRESETS, LEAF_COLOR_THEMES } from './FallingLeaves';
 // import './FallingLeaves.scss';
@@ -126,6 +126,7 @@ function App() {
     });
     socket.on(EVENT_MESSAGE, (newData: ClientData) => {
       // console.log("Přijata nová data ze socketu", newData);
+      if (newData.slot === MealSlot.EXTRA) return;
       // Aktualizujeme pouze, pokud jsme dostali data pro den, který máme aktuálně zobrazený
       if (dayIndexRef.current == null || newData.dayIndex === dayIndexRef.current) {
         setData(newData);