feat: Speiseplan-Inhalte variabel mehrsprachig (Teil 2)

Gerichtnamen, Essenszeiten und Allergen-/Zusatzstoff-Bezeichnungen sind
jetzt genauso dynamisch mehrsprachig wie die Bedienoberfläche aus
v1.10.0, statt fest auf Englisch/Polnisch begrenzt zu sein. Neue
Übersetzungstabellen ersetzen die alten name_en/name_pl-Spalten,
DeepL-Auto-Übersetzung und CSV-Import/-Export unterstützen jetzt
beliebig viele aktive Sprachen.

app/page.tsx

@@ -1,6 +1,7 @@
 import Link from "next/link";
 import { query } from "@/lib/db";
 import { loadMenuEntries } from "@/lib/db/menu-entries";
+import { loadTranslations } from "@/lib/db/translations";
 import { getSettings } from "@/lib/db/settings";
 import {
   addDays,
@@ -33,14 +34,39 @@ export default async function Home({
     iso: addDays(monday, i),
   }));
 
-  const [sections, entries, allergens, additives, settings] = await Promise.all([
-    query<Section>("select * from sections order by sort"),
+  const [
+    sectionRows,
+    entries,
+    allergenRows,
+    additiveRows,
+    settings,
+    sectionTranslations,
+    allergenTranslations,
+    additiveTranslations,
+  ] = await Promise.all([
+    query<Omit<Section, "translations">>("select key, label, time_range, sort from sections order by sort"),
     loadMenuEntries(monday, friday),
-    query<CodeItem>("select * from allergens order by sort"),
-    query<CodeItem>("select * from additives order by sort"),
+    query<Omit<CodeItem, "translations">>("select code, name, sort from allergens order by sort"),
+    query<Omit<CodeItem, "translations">>("select code, name, sort from additives order by sort"),
     getSettings(),
+    loadTranslations("section_translations"),
+    loadTranslations("allergen_translations"),
+    loadTranslations("additive_translations"),
   ]);
 
+  const sections: Section[] = sectionRows.map((s) => ({
+    ...s,
+    translations: sectionTranslations.get(s.key) ?? {},
+  }));
+  const allergens: CodeItem[] = allergenRows.map((a) => ({
+    ...a,
+    translations: allergenTranslations.get(a.code) ?? {},
+  }));
+  const additives: CodeItem[] = additiveRows.map((a) => ({
+    ...a,
+    translations: additiveTranslations.get(a.code) ?? {},
+  }));
+
   const logo = logoUrl(settings?.logo_path);
   const labelingDetailed = (settings?.labeling_mode ?? "detailed") !== "notice";