Merge feature/v1.12.0: Tage als geschlossen markierbar (Feiertage o. Ä.)

Im Wochenplan lässt sich pro Tag ein optionaler, mehrsprachiger
Schließungsgrund hinterlegen. Geschlossene Tage werden auf der
öffentlichen Speisekarte (Desktop + mobil) und im RSS-Feed als
"Geschlossen" statt mit Essenszeiten angezeigt, im Wochenplan bleibt
"Mahlzeit hinzufügen" für diesen Tag deaktiviert.

CHANGELOG.md

@@ -4,6 +4,73 @@ Alle nennenswerten Änderungen an diesem Projekt werden hier dokumentiert.
 Format angelehnt an [Keep a Changelog](https://keepachangelog.com/de/1.1.0/),
 Versionierung nach [Semantic Versioning](https://semver.org/lang/de/).
 
+## [1.12.0] – 2026-07-20
+
+### Hinzugefügt
+- Einzelne Tage als geschlossen markierbar (z. B. Feiertage,
+  Betriebsausflug) – im Wochenplan lässt sich pro Tag über „Tag
+  schließen" ein optionaler, mehrsprachiger Grund hinterlegen (inkl.
+  automatischer Übersetzung per DeepL, sofern konfiguriert). Ein
+  geschlossener Tag:
+  - blendet in der Gerichte-Verwaltung des Wochenplans „Mahlzeit
+    hinzufügen" für diesen Tag aus (bestehende Einträge lassen sich
+    weiterhin entfernen), lässt sich per „Wieder öffnen" jederzeit
+    rückgängig machen.
+  - zeigt auf der öffentlichen Speisekarte (Desktop-Tabelle und
+    mobile Ansicht) einen „Geschlossen"-Hinweis mit Grund statt der
+    Essenszeiten-Spalten/-Karte für diesen Tag.
+  - erscheint im RSS-Feed als eigener Eintrag mit Schließungsgrund
+    statt eines leeren oder fehlenden Tages.
+  - Neue Tabellen `closed_days`/`closed_day_translations` (Migration
+    `0007_closed_days.sql`).
+
+## [1.11.1] – 2026-07-20
+
+### Behoben
+- Wurde Deutsch im Sprachen-Admin deaktiviert (z. B. um die App auf nur
+  Englisch zu reduzieren), blieb die gesamte App trotzdem auf Deutsch
+  stehen, sowohl im öffentlichen als auch im internen Bereich: `getLocale()`
+  fiel bei fehlendem/ungültigem Sprach-Cookie bisher immer fest auf
+  Deutsch zurück, unabhängig davon, ob Deutsch überhaupt noch aktiv war.
+  Da der Sprachumschalter sich bei nur einer aktiven Sprache zusätzlich
+  automatisch ausblendet, gab es keine Möglichkeit, das über die
+  Oberfläche zu korrigieren. Der Fallback nutzt jetzt Deutsch nur noch,
+  wenn es tatsächlich aktiv ist – sonst die erste aktive Sprache.
+
+## [1.11.0] – 2026-07-20
+
+### Hinzugefügt
+- Speiseplan-Inhalte variabel gemacht (Teil 2 des "mehrsprachig
+  variabel"-Umbaus): Gerichtnamen, Essenszeiten-Bezeichnungen sowie
+  Allergen-/Zusatzstoff-Namen sind jetzt genauso dynamisch mehrsprachig
+  wie die Bedienoberfläche aus Version 1.10.0, statt auf feste
+  Englisch-/Polnisch-Spalten begrenzt zu sein:
+  - In den Verwaltungsseiten (Gerichte, Essenszeiten, Allergene &
+    Zusatzstoffe) erscheint jetzt automatisch ein Eingabefeld je aktiv
+    geschalteter Sprache – wird im Sprachen-Admin eine neue Sprache
+    angelegt, taucht dort sofort ein passendes Feld auf, ohne
+    Codeänderung.
+  - Der "Automatisch übersetzen"-Button (DeepL) übersetzt künftig in
+    alle aktiven, von DeepL unterstützten Sprachen statt fix nur
+    Englisch/Polnisch.
+  - CSV-Export/-Import für Gerichte, Allergene und Zusatzstoffe hat
+    jetzt eine Spalte je aktiver Sprache (`name_en`, `name_fr`, …)
+    statt der bisher fest verdrahteten `name_en`/`name_pl`-Spalten.
+  - Reduziert der Admin das Sprachenfeature im Sprachen-Bereich auf nur
+    Deutsch, verschwinden diese Zusatzfelder ebenfalls automatisch aus
+    allen drei Verwaltungsseiten.
+
+### Geändert
+- Neue Migration `0006_content_translations.sql` ersetzt die festen
+  Spalten `name_en`/`name_pl` (Gerichte, Allergene, Zusatzstoffe) bzw.
+  `label_en`/`label_pl` (Essenszeiten) durch je eine
+  Übersetzungstabelle (`dish_translations`, `section_translations`,
+  `allergen_translations`, `additive_translations`); bestehende
+  Übersetzungen werden dabei automatisch übernommen.
+  **Vor dem Einspielen auf einem Produktivsystem unbedingt ein Backup
+  der Datenbank anlegen** – die alten Spalten werden nach der
+  Übernahme entfernt.
+
 ## [1.10.0] – 2026-07-20
 
 ### Hinzugefügt

app/api/additives/export/route.ts

@@ -1,14 +1,19 @@
 import { listCodes } from "@/lib/db/code-lists";
+import { listActiveLanguageCodes } from "@/lib/db/languages";
 import { authErrorResponse, requireRole } from "@/lib/auth/session";
 import { toCsv } from "@/lib/csv";
 
 export async function GET() {
   try {
     await requireRole(["staff", "admin"]);
-    const items = await listCodes("additives");
+    const [items, activeCodes] = await Promise.all([
+      listCodes("additives"),
+      listActiveLanguageCodes(),
+    ]);
+    const langCodes = activeCodes.filter((c) => c !== "de");
     const rows = [
-      ["code", "name", "name_en", "name_pl"],
+      ["code", "name", ...langCodes.map((c) => `name_${c}`)],
-      ...items.map((i) => [i.code, i.name, i.name_en ?? "", i.name_pl ?? ""]),
+      ...items.map((i) => [i.code, i.name, ...langCodes.map((c) => i.translations[c] ?? "")]),
     ];
     return new Response(toCsv(rows), {
       headers: {

app/api/additives/import/route.ts

@@ -1,5 +1,6 @@
 import { NextResponse } from "next/server";
 import { importCodes, type CodeImportRow } from "@/lib/db/code-lists";
+import { listActiveLanguageCodes } from "@/lib/db/languages";
 import { authErrorResponse, requireRole } from "@/lib/auth/session";
 import { isSameOrigin } from "@/lib/origin";
 import { parseCsvWithHeader } from "@/lib/csv";
@@ -22,8 +23,10 @@ export async function POST(request: Request) {
     if (codeIdx === -1 || nameIdx === -1) {
       return NextResponse.json({ error: "missing_columns" }, { status: 400 });
     }
-    const nameEnIdx = header.indexOf("name_en");
+    const activeCodes = (await listActiveLanguageCodes()).filter((c) => c !== "de");
-    const namePlIdx = header.indexOf("name_pl");
+    const langCols = activeCodes
+      .map((code) => ({ code, idx: header.indexOf(`name_${code}`) }))
+      .filter((c) => c.idx !== -1);
 
     const rows: CodeImportRow[] = [];
     const skipped: { row: number; reason: string }[] = [];
@@ -35,12 +38,12 @@ export async function POST(request: Request) {
         skipped.push({ row: rowNum, reason: "Kürzel oder Bezeichnung fehlt" });
         return;
       }
-      rows.push({
+      const translations: Record<string, string> = {};
-        code,
+      for (const { code: lang, idx } of langCols) {
-        name,
+        const value = c[idx]?.trim();
-        name_en: nameEnIdx >= 0 ? c[nameEnIdx]?.trim() || null : null,
+        if (value) translations[lang] = value;
-        name_pl: namePlIdx >= 0 ? c[namePlIdx]?.trim() || null : null,
+      }
-      });
+      rows.push({ code, name, translations });
     });
 
     const result = rows.length > 0 ? await importCodes("additives", rows) : { created: 0, updated: 0 };

app/api/allergens/export/route.ts

@@ -1,14 +1,19 @@
 import { listCodes } from "@/lib/db/code-lists";
+import { listActiveLanguageCodes } from "@/lib/db/languages";
 import { authErrorResponse, requireRole } from "@/lib/auth/session";
 import { toCsv } from "@/lib/csv";
 
 export async function GET() {
   try {
     await requireRole(["staff", "admin"]);
-    const items = await listCodes("allergens");
+    const [items, activeCodes] = await Promise.all([
+      listCodes("allergens"),
+      listActiveLanguageCodes(),
+    ]);
+    const langCodes = activeCodes.filter((c) => c !== "de");
     const rows = [
-      ["code", "name", "name_en", "name_pl"],
+      ["code", "name", ...langCodes.map((c) => `name_${c}`)],
-      ...items.map((i) => [i.code, i.name, i.name_en ?? "", i.name_pl ?? ""]),
+      ...items.map((i) => [i.code, i.name, ...langCodes.map((c) => i.translations[c] ?? "")]),
     ];
     return new Response(toCsv(rows), {
       headers: {

app/api/allergens/import/route.ts

@@ -1,5 +1,6 @@
 import { NextResponse } from "next/server";
 import { importCodes, type CodeImportRow } from "@/lib/db/code-lists";
+import { listActiveLanguageCodes } from "@/lib/db/languages";
 import { authErrorResponse, requireRole } from "@/lib/auth/session";
 import { isSameOrigin } from "@/lib/origin";
 import { parseCsvWithHeader } from "@/lib/csv";
@@ -22,8 +23,10 @@ export async function POST(request: Request) {
     if (codeIdx === -1 || nameIdx === -1) {
       return NextResponse.json({ error: "missing_columns" }, { status: 400 });
     }
-    const nameEnIdx = header.indexOf("name_en");
+    const activeCodes = (await listActiveLanguageCodes()).filter((c) => c !== "de");
-    const namePlIdx = header.indexOf("name_pl");
+    const langCols = activeCodes
+      .map((code) => ({ code, idx: header.indexOf(`name_${code}`) }))
+      .filter((c) => c.idx !== -1);
 
     const rows: CodeImportRow[] = [];
     const skipped: { row: number; reason: string }[] = [];
@@ -35,12 +38,12 @@ export async function POST(request: Request) {
         skipped.push({ row: rowNum, reason: "Kürzel oder Bezeichnung fehlt" });
         return;
       }
-      rows.push({
+      const translations: Record<string, string> = {};
-        code,
+      for (const { code: lang, idx } of langCols) {
-        name,
+        const value = c[idx]?.trim();
-        name_en: nameEnIdx >= 0 ? c[nameEnIdx]?.trim() || null : null,
+        if (value) translations[lang] = value;
-        name_pl: namePlIdx >= 0 ? c[namePlIdx]?.trim() || null : null,
+      }
-      });
+      rows.push({ code, name, translations });
     });
 
     const result = rows.length > 0 ? await importCodes("allergens", rows) : { created: 0, updated: 0 };

app/api/closed-days/[date]/route.ts

@@ -0,0 +1,23 @@
+import { NextResponse } from "next/server";
+import { removeClosedDay } from "@/lib/db/closed-days";
+import { authErrorResponse, requireRole } from "@/lib/auth/session";
+import { isSameOrigin } from "@/lib/origin";
+
+export async function DELETE(
+  request: Request,
+  { params }: { params: Promise<{ date: string }> }
+) {
+  if (!isSameOrigin(request)) {
+    return NextResponse.json({ error: "Nicht erlaubt." }, { status: 403 });
+  }
+  try {
+    await requireRole(["staff", "admin"]);
+    const { date } = await params;
+    await removeClosedDay(date);
+    return NextResponse.json({ ok: true });
+  } catch (err) {
+    const res = authErrorResponse(err);
+    if (res) return res;
+    throw err;
+  }
+}

app/api/closed-days/route.ts

@@ -0,0 +1,34 @@
+import { NextResponse } from "next/server";
+import { listClosedDays, setClosedDay } from "@/lib/db/closed-days";
+import { authErrorResponse, requireRole } from "@/lib/auth/session";
+import { isSameOrigin } from "@/lib/origin";
+
+export async function GET(request: Request) {
+  const { searchParams } = new URL(request.url);
+  const from = searchParams.get("from");
+  const to = searchParams.get("to");
+  if (!from || !to) {
+    return NextResponse.json({ error: "invalid_input" }, { status: 400 });
+  }
+  return NextResponse.json(await listClosedDays(from, to));
+}
+
+export async function POST(request: Request) {
+  if (!isSameOrigin(request)) {
+    return NextResponse.json({ error: "Nicht erlaubt." }, { status: 403 });
+  }
+  try {
+    await requireRole(["staff", "admin"]);
+    const body = (await request.json()) as {
+      closed_date: string;
+      reason: string | null;
+      translations?: Record<string, string | null>;
+    };
+    const closedDay = await setClosedDay(body.closed_date, body.reason, body.translations);
+    return NextResponse.json(closedDay, { status: 201 });
+  } catch (err) {
+    const res = authErrorResponse(err);
+    if (res) return res;
+    throw err;
+  }
+}

app/api/dishes/[id]/route.ts

@@ -1,9 +1,18 @@
 import { NextResponse } from "next/server";
 import { query, queryOne } from "@/lib/db";
+import { loadTranslationsFor, replaceTranslations } from "@/lib/db/translations";
 import { authErrorResponse, requireRole } from "@/lib/auth/session";
 import { isSameOrigin } from "@/lib/origin";
 import type { Dish } from "@/lib/types";
 
+interface DishRow {
+  id: string;
+  name: string;
+  price: string;
+  allergens: string[];
+  additives: string[];
+}
+
 export async function PATCH(
   request: Request,
   { params }: { params: Promise<{ id: string }> }
@@ -16,19 +25,26 @@ export async function PATCH(
     const { id } = await params;
     const body = (await request.json()) as {
       name: string;
-      name_en: string | null;
-      name_pl: string | null;
       price: number;
       allergens: string[];
       additives: string[];
+      translations?: Record<string, string | null>;
     };
-    const dish = await queryOne<Dish>(
+    const row = await queryOne<DishRow>(
-      `update dishes set name = $1, name_en = $2, name_pl = $3, price = $4,
+      `update dishes set name = $1, price = $2, allergens = $3, additives = $4
-              allergens = $5, additives = $6
+       where id = $5 returning id, name, price, allergens, additives`,
-       where id = $7 returning *`,
+      [body.name, body.price, body.allergens, body.additives, id]
-      [body.name, body.name_en, body.name_pl, body.price, body.allergens, body.additives, id]
     );
-    if (!dish) return NextResponse.json({ error: "not_found" }, { status: 404 });
+    if (!row) return NextResponse.json({ error: "not_found" }, { status: 404 });
+    if (body.translations) {
+      await replaceTranslations("dish_translations", row.id, body.translations);
+    }
+    const translations = await loadTranslationsFor("dish_translations", [row.id]);
+    const dish: Dish = {
+      ...row,
+      price: Number(row.price),
+      translations: translations.get(row.id) ?? {},
+    };
     return NextResponse.json(dish);
   } catch (err) {
     const res = authErrorResponse(err);

app/api/dishes/export/route.ts

@@ -1,19 +1,35 @@
 import { query } from "@/lib/db";
+import { loadTranslationsFor } from "@/lib/db/translations";
+import { listActiveLanguageCodes } from "@/lib/db/languages";
 import { authErrorResponse, requireRole } from "@/lib/auth/session";
 import { toCsv } from "@/lib/csv";
-import type { Dish } from "@/lib/types";
+
+interface DishRow {
+  id: string;
+  name: string;
+  price: string;
+  allergens: string[];
+  additives: string[];
+}
 
 export async function GET() {
   try {
     await requireRole(["staff", "admin"]);
-    const dishes = await query<Dish>("select * from dishes order by name");
+    const [dishes, activeCodes] = await Promise.all([
+      query<DishRow>("select id, name, price, allergens, additives from dishes order by name"),
+      listActiveLanguageCodes(),
+    ]);
+    const langCodes = activeCodes.filter((c) => c !== "de");
+    const translations = await loadTranslationsFor(
+      "dish_translations",
+      dishes.map((d) => d.id)
+    );
     const rows = [
-      ["name", "name_en", "name_pl", "price", "allergens", "additives"],
+      ["name", ...langCodes.map((c) => `name_${c}`), "price", "allergens", "additives"],
       ...dishes.map((d) => [
         d.name,
-        d.name_en ?? "",
+        ...langCodes.map((c) => translations.get(d.id)?.[c] ?? ""),
-        d.name_pl ?? "",
+        d.price,
-        String(d.price),
         (d.allergens ?? []).join(";"),
         (d.additives ?? []).join(";"),
       ]),

app/api/dishes/import/route.ts

@@ -1,5 +1,7 @@
 import { NextResponse } from "next/server";
 import { withTransaction } from "@/lib/db";
+import { replaceTranslations } from "@/lib/db/translations";
+import { listActiveLanguageCodes } from "@/lib/db/languages";
 import { authErrorResponse, requireRole } from "@/lib/auth/session";
 import { isSameOrigin } from "@/lib/origin";
 import { parseCsvWithHeader, splitCodes } from "@/lib/csv";
@@ -7,8 +9,7 @@ import { parseCsvWithHeader, splitCodes } from "@/lib/csv";
 interface ImportRow {
   rowNum: number;
   name: string;
-  name_en: string | null;
+  translations: Record<string, string>;
-  name_pl: string | null;
   price: number;
   allergens: string[];
   additives: string[];
@@ -32,8 +33,10 @@ export async function POST(request: Request) {
     if (nameIdx === -1 || priceIdx === -1) {
       return NextResponse.json({ error: "missing_columns" }, { status: 400 });
     }
-    const nameEnIdx = header.indexOf("name_en");
+    const activeCodes = (await listActiveLanguageCodes()).filter((c) => c !== "de");
-    const namePlIdx = header.indexOf("name_pl");
+    const langCols = activeCodes
+      .map((code) => ({ code, idx: header.indexOf(`name_${code}`) }))
+      .filter((c) => c.idx !== -1);
     const allergensIdx = header.indexOf("allergens");
     const additivesIdx = header.indexOf("additives");
 
@@ -52,11 +55,15 @@ export async function POST(request: Request) {
         skipped.push({ row: rowNum, reason: `Ungültiger Preis „${c[priceIdx] ?? ""}“` });
         return;
       }
+      const translations: Record<string, string> = {};
+      for (const { code, idx } of langCols) {
+        const value = c[idx]?.trim();
+        if (value) translations[code] = value;
+      }
       rows.push({
         rowNum,
         name,
-        name_en: nameEnIdx >= 0 ? c[nameEnIdx]?.trim() || null : null,
+        translations,
-        name_pl: namePlIdx >= 0 ? c[namePlIdx]?.trim() || null : null,
         price,
         allergens: allergensIdx >= 0 ? splitCodes(c[allergensIdx]) : [],
         additives: additivesIdx >= 0 ? splitCodes(c[additivesIdx]) : [],
@@ -65,6 +72,7 @@ export async function POST(request: Request) {
 
     let created = 0;
     let updated = 0;
+    const savedTranslations: { id: string; translations: Record<string, string> }[] = [];
     if (rows.length > 0) {
       await withTransaction(async (client) => {
         for (const row of rows) {
@@ -84,21 +92,27 @@ export async function POST(request: Request) {
           }
           if (existing.rows.length === 1) {
             await client.query(
-              `update dishes set name_en = $1, name_pl = $2, price = $3, allergens = $4, additives = $5
+              `update dishes set price = $1, allergens = $2, additives = $3 where id = $4`,
-               where id = $6`,
+              [row.price, row.allergens, row.additives, existing.rows[0].id]
-              [row.name_en, row.name_pl, row.price, row.allergens, row.additives, existing.rows[0].id]
             );
+            savedTranslations.push({ id: existing.rows[0].id, translations: row.translations });
             updated++;
           } else {
-            await client.query(
+            const inserted = await client.query<{ id: string }>(
-              `insert into dishes (name, name_en, name_pl, price, allergens, additives)
+              `insert into dishes (name, price, allergens, additives)
-               values ($1, $2, $3, $4, $5, $6)`,
+               values ($1, $2, $3, $4) returning id`,
-              [row.name, row.name_en, row.name_pl, row.price, row.allergens, row.additives]
+              [row.name, row.price, row.allergens, row.additives]
             );
+            savedTranslations.push({ id: inserted.rows[0].id, translations: row.translations });
             created++;
           }
         }
       });
+      for (const { id, translations } of savedTranslations) {
+        if (Object.keys(translations).length > 0) {
+          await replaceTranslations("dish_translations", id, translations);
+        }
+      }
     }
 
     return NextResponse.json({ created, updated, skipped });

app/api/dishes/route.ts

@@ -1,12 +1,35 @@
 import { NextResponse } from "next/server";
 import { query, queryOne } from "@/lib/db";
+import { loadTranslationsFor, replaceTranslations } from "@/lib/db/translations";
 import { authErrorResponse, requireRole } from "@/lib/auth/session";
 import { isSameOrigin } from "@/lib/origin";
 import type { Dish } from "@/lib/types";
 
+interface DishRow {
+  id: string;
+  name: string;
+  price: string;
+  allergens: string[];
+  additives: string[];
+}
+
+async function withTranslations(rows: DishRow[]): Promise<Dish[]> {
+  const translations = await loadTranslationsFor(
+    "dish_translations",
+    rows.map((r) => r.id)
+  );
+  return rows.map((r) => ({
+    ...r,
+    price: Number(r.price),
+    translations: translations.get(r.id) ?? {},
+  }));
+}
+
 export async function GET() {
-  const dishes = await query<Dish>("select * from dishes order by name");
+  const rows = await query<DishRow>(
-  return NextResponse.json(dishes);
+    "select id, name, price, allergens, additives from dishes order by name"
+  );
+  return NextResponse.json(await withTranslations(rows));
 }
 
 export async function POST(request: Request) {
@@ -17,17 +40,20 @@ export async function POST(request: Request) {
     await requireRole(["staff", "admin"]);
     const body = (await request.json()) as {
       name: string;
-      name_en: string | null;
-      name_pl: string | null;
       price: number;
       allergens: string[];
       additives: string[];
+      translations?: Record<string, string | null>;
     };
-    const dish = await queryOne<Dish>(
+    const row = (await queryOne<DishRow>(
-      `insert into dishes (name, name_en, name_pl, price, allergens, additives)
+      `insert into dishes (name, price, allergens, additives)
-       values ($1, $2, $3, $4, $5, $6) returning *`,
+       values ($1, $2, $3, $4) returning id, name, price, allergens, additives`,
-      [body.name, body.name_en, body.name_pl, body.price, body.allergens, body.additives]
+      [body.name, body.price, body.allergens, body.additives]
-    );
+    ))!;
+    if (body.translations) {
+      await replaceTranslations("dish_translations", row.id, body.translations);
+    }
+    const [dish] = await withTranslations([row]);
     return NextResponse.json(dish, { status: 201 });
   } catch (err) {
     const res = authErrorResponse(err);

app/api/sections/[key]/route.ts

@@ -1,9 +1,17 @@
 import { NextResponse } from "next/server";
 import { query, queryOne } from "@/lib/db";
+import { loadTranslationsFor, replaceTranslations } from "@/lib/db/translations";
 import { authErrorResponse, requireRole } from "@/lib/auth/session";
 import { isSameOrigin } from "@/lib/origin";
 import type { Section } from "@/lib/types";
 
+interface SectionRow {
+  key: string;
+  label: string;
+  time_range: string;
+  sort: number;
+}
+
 export async function PATCH(
   request: Request,
   { params }: { params: Promise<{ key: string }> }
@@ -15,25 +23,37 @@ export async function PATCH(
     await requireRole(["staff", "admin"]);
     const { key } = await params;
     const body = (await request.json()) as Partial<
-      Pick<Section, "label" | "label_en" | "label_pl" | "time_range" | "sort">
+      Pick<Section, "label" | "time_range" | "sort">
-    >;
+    > & { translations?: Record<string, string | null> };
 
     const fields: string[] = [];
     const values: unknown[] = [];
-    for (const col of ["label", "label_en", "label_pl", "time_range", "sort"] as const) {
+    for (const col of ["label", "time_range", "sort"] as const) {
       if (body[col] !== undefined) {
         values.push(body[col]);
         fields.push(`${col} = $${values.length}`);
       }
     }
-    if (fields.length === 0) return NextResponse.json({ error: "empty_update" }, { status: 400 });
+    let row: SectionRow | null;
+    if (fields.length > 0) {
       values.push(key);
-
+      row = await queryOne<SectionRow>(
-    const section = await queryOne<Section>(
+        `update sections set ${fields.join(", ")} where key = $${values.length}
-      `update sections set ${fields.join(", ")} where key = $${values.length} returning *`,
+         returning key, label, time_range, sort`,
         values
       );
-    if (!section) return NextResponse.json({ error: "not_found" }, { status: 404 });
+    } else {
+      row = await queryOne<SectionRow>(
+        "select key, label, time_range, sort from sections where key = $1",
+        [key]
+      );
+    }
+    if (!row) return NextResponse.json({ error: "not_found" }, { status: 404 });
+    if (body.translations) {
+      await replaceTranslations("section_translations", row.key, body.translations);
+    }
+    const translations = await loadTranslationsFor("section_translations", [row.key]);
+    const section: Section = { ...row, translations: translations.get(row.key) ?? {} };
     return NextResponse.json(section);
   } catch (err) {
     const res = authErrorResponse(err);

app/api/sections/route.ts

@@ -1,12 +1,30 @@
 import { NextResponse } from "next/server";
 import { query, queryOne } from "@/lib/db";
+import { loadTranslationsFor, replaceTranslations } from "@/lib/db/translations";
 import { authErrorResponse, requireRole } from "@/lib/auth/session";
 import { isSameOrigin } from "@/lib/origin";
 import type { Section } from "@/lib/types";
 
+interface SectionRow {
+  key: string;
+  label: string;
+  time_range: string;
+  sort: number;
+}
+
+async function withTranslations(rows: SectionRow[]): Promise<Section[]> {
+  const translations = await loadTranslationsFor(
+    "section_translations",
+    rows.map((r) => r.key)
+  );
+  return rows.map((r) => ({ ...r, translations: translations.get(r.key) ?? {} }));
+}
+
 export async function GET() {
-  const sections = await query<Section>("select * from sections order by sort");
+  const rows = await query<SectionRow>(
-  return NextResponse.json(sections);
+    "select key, label, time_range, sort from sections order by sort"
+  );
+  return NextResponse.json(await withTranslations(rows));
 }
 
 export async function POST(request: Request) {
@@ -17,19 +35,22 @@ export async function POST(request: Request) {
     await requireRole(["staff", "admin"]);
     const body = (await request.json()) as {
       label: string;
-      label_en: string | null;
-      label_pl: string | null;
       time_range: string;
+      translations?: Record<string, string | null>;
     };
 
     const maxRow = await queryOne<{ sort: number }>(
       "select sort from sections order by sort desc limit 1"
     );
-    const section = await queryOne<Section>(
+    const row = (await queryOne<SectionRow>(
-      `insert into sections (label, label_en, label_pl, time_range, sort)
+      `insert into sections (label, time_range, sort)
-       values ($1, $2, $3, $4, $5) returning *`,
+       values ($1, $2, $3) returning key, label, time_range, sort`,
-      [body.label, body.label_en, body.label_pl, body.time_range, (maxRow?.sort ?? 0) + 1]
+      [body.label, body.time_range, (maxRow?.sort ?? 0) + 1]
-    );
+    ))!;
+    if (body.translations) {
+      await replaceTranslations("section_translations", row.key, body.translations);
+    }
+    const [section] = await withTranslations([row]);
     return NextResponse.json(section, { status: 201 });
   } catch (err) {
     const res = authErrorResponse(err);

app/api/translate/route.ts

@@ -1,21 +1,32 @@
 import { NextResponse } from "next/server";
-import { query } from "@/lib/db";
+import { listActiveLanguageCodes } from "@/lib/db/languages";
+import { replaceTranslations, type TranslationTable } from "@/lib/db/translations";
 import { requireRole, UnauthorizedError, ForbiddenError } from "@/lib/auth/session";
 import { isSameOrigin } from "@/lib/origin";
 
-// Übersetzt einen deutschen Text nach Englisch/Polnisch via DeepL und
+// Übersetzt einen deutschen Text via DeepL in alle aktiven, von DeepL
-// schreibt das Ergebnis in die _en/_pl-Spalte der angegebenen Zeile.
+// unterstützten Sprachen und schreibt das Ergebnis in die passende
-// Ohne DEEPL_API_KEY läuft die Route kontrolliert ins Leere (configured:
+// *_translations-Tabelle. Ohne DEEPL_API_KEY läuft die Route kontrolliert
-// false), damit das UI die manuelle Eingabe anbieten kann.
+// ins Leere (configured: false), damit das UI die manuelle Eingabe anbietet.
 
-const ALLOWED_TABLES: Record<string, { idColumn: string; textColumn: string }> = {
+const ALLOWED_TABLES: Record<string, { idColumn: string; translationTable: TranslationTable }> = {
-  dishes: { idColumn: "id", textColumn: "name" },
+  dishes: { idColumn: "id", translationTable: "dish_translations" },
-  sections: { idColumn: "key", textColumn: "label" },
+  sections: { idColumn: "key", translationTable: "section_translations" },
-  allergens: { idColumn: "code", textColumn: "name" },
+  allergens: { idColumn: "code", translationTable: "allergen_translations" },
-  additives: { idColumn: "code", textColumn: "name" },
+  additives: { idColumn: "code", translationTable: "additive_translations" },
+  closed_days: { idColumn: "closed_date", translationTable: "closed_day_translations" },
 };
 
-async function translateWithDeepL(text: string, targetLang: "EN" | "PL", apiKey: string) {
+// Unsere Sprachcodes -> DeepL target_lang. Sprachen ohne Eintrag hier sind
+// von DeepL nicht unterstützt und bleiben bei manueller Eingabe.
+const DEEPL_TARGET_LANG: Record<string, string> = {
+  en: "EN", pl: "PL", fr: "FR", es: "ES", it: "IT", nl: "NL", pt: "PT-PT",
+  ru: "RU", ja: "JA", zh: "ZH", cs: "CS", da: "DA", el: "EL", fi: "FI",
+  hu: "HU", id: "ID", ko: "KO", nb: "NB", ro: "RO", sk: "SK", sl: "SL",
+  sv: "SV", tr: "TR", uk: "UK", bg: "BG", et: "ET", lv: "LV", lt: "LT",
+};
+
+async function translateWithDeepL(text: string, targetLang: string, apiKey: string) {
   const host = apiKey.endsWith(":fx")
     ? "https://api-free.deepl.com"
     : "https://api.deepl.com";
@@ -71,25 +82,31 @@ export async function POST(request: Request) {
     return NextResponse.json({ configured: false });
   }
 
-  try {
+  const activeCodes = (await listActiveLanguageCodes()).filter((c) => c !== "de");
-    const [en, pl] = await Promise.all([
+  const targets = activeCodes
-      translateWithDeepL(text, "EN", apiKey),
+    .map((code) => ({ code, target: DEEPL_TARGET_LANG[code.toLowerCase()] }))
-      translateWithDeepL(text, "PL", apiKey),
+    .filter((t): t is { code: string; target: string } => Boolean(t.target));
-    ]);
-    if (!en || !pl) throw new Error("Keine Übersetzung erhalten.");
 
-    if (persist) {
+  try {
-      // table/idColumn/textColumn kommen ausschließlich aus dem oben
+    const results = await Promise.all(
-      // geprüften ALLOWED_TABLES-Whitelist, nie aus Nutzereingaben –
+      targets.map(async (t) => ({
-      // sicher für die String-Interpolation in der Query.
+        code: t.code,
-      await query(
+        text: await translateWithDeepL(text, t.target, apiKey),
-        `update ${table} set ${config.textColumn}_en = $1, ${config.textColumn}_pl = $2
+      }))
-         where ${config.idColumn} = $3`,
-        [en, pl, id]
     );
+    const translations: Record<string, string> = {};
+    for (const r of results) {
+      if (r.text) translations[r.code] = r.text;
+    }
+    if (Object.keys(translations).length === 0) {
+      throw new Error("Keine Übersetzung erhalten.");
     }
 
-    return NextResponse.json({ configured: true, en, pl });
+    if (persist) {
+      await replaceTranslations(config.translationTable, id, translations);
+    }
+
+    return NextResponse.json({ configured: true, translations });
   } catch (err) {
     return NextResponse.json(
       { error: err instanceof Error ? err.message : "Übersetzung fehlgeschlagen." },

app/feed.xml/route.ts

@@ -1,5 +1,6 @@
 import { query } from "@/lib/db";
 import { loadMenuEntries } from "@/lib/db/menu-entries";
+import { listClosedDays } from "@/lib/db/closed-days";
 import { addDays, entriesFor, formatPrice, mondayOf, todayISO } from "@/lib/menu";
 import { localized, SITE_TITLE } from "@/lib/types";
 import type { Section } from "@/lib/types";
@@ -45,16 +46,24 @@ export async function GET() {
   // Wochennavigation anzeigt.
   const rangeEnd = addDays(monday, 11);
 
-  const [sections, entries] = await Promise.all([
+  const [sections, entries, closedDays] = await Promise.all([
     query<Section>("select * from sections order by sort"),
     loadMenuEntries(monday, rangeEnd),
+    listClosedDays(monday, rangeEnd),
   ]);
 
-  const days = Array.from(new Set(entries.map((e) => e.menu_date))).sort();
+  const days = Array.from(
+    new Set([...entries.map((e) => e.menu_date), ...closedDays.map((c) => c.closed_date)])
+  ).sort();
 
   const items = days
     .map((iso) => {
-      const dayContent = sections
+      const closed = closedDays.find((c) => c.closed_date === iso);
+      const dayContent = closed
+        ? `<p><strong>Geschlossen</strong>${
+            closed.reason ? ` – ${escapeXml(closed.reason)}` : ""
+          }</p>`
+        : sections
             .map((s) => {
               const dishes = entriesFor(entries, iso, s.key);
               if (dishes.length === 0) return "";

app/intern/page.tsx

@@ -7,5 +7,10 @@ export default async function InternPage({
   searchParams: Promise<{ woche?: string }>;
 }) {
   const { woche } = await searchParams;
-  return <WeekEditor monday={mondayOf(woche)} />;
+  return (
+    <WeekEditor
+      monday={mondayOf(woche)}
+      translateEnabled={!!process.env.DEEPL_API_KEY}
+    />
+  );
 }

app/page.tsx

@@ -1,6 +1,8 @@
 import Link from "next/link";
 import { query } from "@/lib/db";
 import { loadMenuEntries } from "@/lib/db/menu-entries";
+import { loadTranslations } from "@/lib/db/translations";
+import { listClosedDays } from "@/lib/db/closed-days";
 import { getSettings } from "@/lib/db/settings";
 import {
   addDays,
@@ -33,13 +35,41 @@ export default async function Home({
     iso: addDays(monday, i),
   }));
 
-  const [sections, entries, allergens, additives, settings] = await Promise.all([
+  const [
-    query<Section>("select * from sections order by sort"),
+    sectionRows,
+    entries,
+    allergenRows,
+    additiveRows,
+    settings,
+    sectionTranslations,
+    allergenTranslations,
+    additiveTranslations,
+    closedDays,
+  ] = 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<Omit<CodeItem, "translations">>("select code, name, sort from allergens order by sort"),
-    query<CodeItem>("select * from additives 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"),
+    listClosedDays(monday, friday),
   ]);
+  const closedDayFor = (iso: string) => closedDays.find((c) => c.closed_date === iso);
+
+  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";
@@ -104,6 +134,7 @@ export default async function Home({
         monday={monday}
         sections={sections}
         entries={entries}
+        closedDays={closedDays}
         showLabeling={labelingDetailed}
       />
 
@@ -129,13 +160,28 @@ export default async function Home({
             <thead>
               <tr>
                 <th className="section-head w-56" aria-hidden />
-                {days.map((d) => (
+                {days.map((d) => {
+                  const closed = closedDayFor(d.iso);
+                  return (
                     <th key={d.iso} className="day-head">
                       <span className="font-bold">{d.weekday}</span>
                       <br />
                       {formatDateLong(d.iso, dict.dateLocale)}
+                      {closed && (
+                        <div className="mt-1 text-xs font-normal">
+                          <span className="rounded-full bg-red-100 text-red-700 px-2 py-0.5 font-semibold">
+                            {dict.publicMenu.closedLabel}
+                          </span>
+                          {localized(closed, locale) && (
+                            <div className="mt-0.5 opacity-90">
+                              {localized(closed, locale)}
+                            </div>
+                          )}
+                        </div>
+                      )}
                     </th>
-                ))}
+                  );
+                })}
               </tr>
             </thead>
             <tbody>
@@ -147,7 +193,9 @@ export default async function Home({
                   </th>
                   {days.map((d) => (
                     <td key={d.iso} className="cell">
-                      {entriesFor(entries, d.iso, s.key).map((e) => {
+                      {closedDayFor(d.iso)
+                        ? null
+                        : entriesFor(entries, d.iso, s.key).map((e) => {
                             const codes = dishCodes(e.dish);
                             return (
                               <div key={e.id} className="dish">

components/CodeListManager.tsx

@@ -7,7 +7,7 @@ import { useCallback, useEffect, useState } from "react";
 import { formatMessage } from "@/lib/i18n/shared";
 import { localized } from "@/lib/types";
 import type { CodeItem } from "@/lib/types";
-import { useDict, useLocale } from "@/components/i18n/LocaleProvider";
+import { useDict, useLanguages, useLocale } from "@/components/i18n/LocaleProvider";
 
 export default function CodeListManager({
   table,
@@ -18,6 +18,7 @@ export default function CodeListManager({
 }) {
   const dict = useDict();
   const locale = useLocale();
+  const languages = useLanguages().filter((l) => l.code !== "de");
   const title =
     table === "allergens" ? dict.codeList.allergensTitle : dict.codeList.additivesTitle;
   const codeLabel =
@@ -30,8 +31,7 @@ export default function CodeListManager({
     original: string | null; // code vor der Bearbeitung, null = neu
     code: string;
     name: string;
-    nameEn: string;
+    translations: Record<string, string>;
-    namePl: string;
   } | null>(null);
   const [error, setError] = useState<string | null>(null);
   const [notice, setNotice] = useState<string | null>(null);
@@ -60,8 +60,7 @@ export default function CodeListManager({
     const payload = {
       code,
       name,
-      name_en: editing.nameEn.trim() || null,
+      translations: editing.translations,
-      name_pl: editing.namePl.trim() || null,
     };
 
     const res = editing.original
@@ -118,7 +117,9 @@ export default function CodeListManager({
       const data = await res.json();
       if (!res.ok) throw new Error(data?.error ?? `Fehler (${res.status})`);
       setEditing((prev) =>
-        prev ? { ...prev, nameEn: data.en ?? prev.nameEn, namePl: data.pl ?? prev.namePl } : prev
+        prev
+          ? { ...prev, translations: { ...prev.translations, ...(data.translations ?? {}) } }
+          : prev
       );
       setTranslateState("done");
     } catch (err) {
@@ -202,7 +203,7 @@ export default function CodeListManager({
           type="button"
           className="btn btn-add"
           onClick={() => {
-            setEditing({ original: null, code: "", name: "", nameEn: "", namePl: "" });
+            setEditing({ original: null, code: "", name: "", translations: {} });
             setTranslateState("idle");
           }}
         >
@@ -237,25 +238,26 @@ export default function CodeListManager({
               required
             />
           </div>
+          {languages.length > 0 && (
             <div className="grid gap-2 sm:grid-cols-2">
-            <div>
+              {languages.map((lang) => (
-              <label className="label">{dict.dishManager.nameEnLabel}</label>
+                <div key={lang.code}>
+                  <label className="label">{lang.label}</label>
                   <input
                     className="input"
-                value={editing.nameEn}
+                    value={editing.translations[lang.code] ?? ""}
-                onChange={(e) => setEditing({ ...editing, nameEn: e.target.value })}
+                    onChange={(e) =>
+                      setEditing({
+                        ...editing,
+                        translations: { ...editing.translations, [lang.code]: e.target.value },
+                      })
+                    }
                   />
                 </div>
-            <div>
+              ))}
-              <label className="label">{dict.dishManager.namePlLabel}</label>
-              <input
-                className="input"
-                value={editing.namePl}
-                onChange={(e) => setEditing({ ...editing, namePl: e.target.value })}
-              />
             </div>
-          </div>
+          )}
-          {translateEnabled && (
+          {translateEnabled && languages.length > 0 && (
             <div>
               <button
                 type="button"
@@ -304,8 +306,7 @@ export default function CodeListManager({
                   original: item.code,
                   code: item.code,
                   name: item.name,
-                  nameEn: item.name_en ?? "",
+                  translations: { ...item.translations },
-                  namePl: item.name_pl ?? "",
                 });
                 setTranslateState("idle");
               }}

components/DishManager.tsx

@@ -6,13 +6,12 @@ import { formatMessage } from "@/lib/i18n/shared";
 import { localized } from "@/lib/types";
 import type { CodeItem, Dish } from "@/lib/types";
 import ChipPicker from "@/components/ChipPicker";
-import { useDict, useLocale } from "@/components/i18n/LocaleProvider";
+import { useDict, useLanguages, useLocale } from "@/components/i18n/LocaleProvider";
 
 interface DishForm {
   id: string | null; // null = neues Gericht
   name: string;
-  nameEn: string;
+  translations: Record<string, string>;
-  namePl: string;
   price: string;
   allergens: string[];
   additives: string[];
@@ -21,8 +20,7 @@ interface DishForm {
 const EMPTY_FORM: DishForm = {
   id: null,
   name: "",
-  nameEn: "",
+  translations: {},
-  namePl: "",
   price: "",
   allergens: [],
   additives: [],
@@ -35,6 +33,7 @@ export default function DishManager({
 }) {
   const dict = useDict();
   const locale = useLocale();
+  const languages = useLanguages().filter((l) => l.code !== "de");
   const [dishes, setDishes] = useState<Dish[]>([]);
   const [allergens, setAllergens] = useState<CodeItem[]>([]);
   const [additives, setAdditives] = useState<CodeItem[]>([]);
@@ -93,11 +92,10 @@ export default function DishManager({
     }
     const payload = {
       name: form.name.trim(),
-      name_en: form.nameEn.trim() || null,
-      name_pl: form.namePl.trim() || null,
       price,
       allergens: form.allergens,
       additives: form.additives,
+      translations: form.translations,
     };
     const res = form.id
       ? await fetch(`/api/dishes/${form.id}`, {
@@ -218,7 +216,9 @@ export default function DishManager({
       const data = await res.json();
       if (!res.ok) throw new Error(data?.error ?? `Fehler (${res.status})`);
       setForm((prev) =>
-        prev ? { ...prev, nameEn: data.en ?? prev.nameEn, namePl: data.pl ?? prev.namePl } : prev
+        prev
+          ? { ...prev, translations: { ...prev.translations, ...(data.translations ?? {}) } }
+          : prev
       );
       setTranslateState("done");
     } catch (err) {
@@ -352,31 +352,29 @@ export default function DishManager({
             />
           </div>
 
+          {languages.length > 0 && (
             <div className="grid gap-3 sm:grid-cols-2">
-            <div>
+              {languages.map((lang) => (
-              <label className="label" htmlFor="dish-name-en">
+                <div key={lang.code}>
-                {dict.dishManager.nameEnLabel}
+                  <label className="label" htmlFor={`dish-name-${lang.code}`}>
+                    {lang.label}
                   </label>
                   <input
-                id="dish-name-en"
+                    id={`dish-name-${lang.code}`}
                     className="input"
-                value={form.nameEn}
+                    value={form.translations[lang.code] ?? ""}
-                onChange={(e) => setForm({ ...form, nameEn: e.target.value })}
+                    onChange={(e) =>
+                      setForm({
+                        ...form,
+                        translations: { ...form.translations, [lang.code]: e.target.value },
+                      })
+                    }
                   />
                 </div>
-            <div>
+              ))}
-              <label className="label" htmlFor="dish-name-pl">
-                {dict.dishManager.namePlLabel}
-              </label>
-              <input
-                id="dish-name-pl"
-                className="input"
-                value={form.namePl}
-                onChange={(e) => setForm({ ...form, namePl: e.target.value })}
-              />
             </div>
-          </div>
+          )}
-          {translateEnabled && (
+          {translateEnabled && languages.length > 0 && (
             <div>
               <button
                 type="button"
@@ -495,8 +493,7 @@ export default function DishManager({
                       setForm({
                         id: dish.id,
                         name: dish.name,
-                        nameEn: dish.name_en ?? "",
+                        translations: { ...dish.translations },
-                        namePl: dish.name_pl ?? "",
                         price: String(dish.price).replace(".", ","),
                         allergens: dish.allergens ?? [],
                         additives: dish.additives ?? [],

components/PublicMobileMenu.tsx

@@ -19,7 +19,7 @@ import {
   weekdayIndex,
 } from "@/lib/menu";
 import { localized } from "@/lib/types";
-import type { MenuEntry, Section } from "@/lib/types";
+import type { ClosedDay, MenuEntry, Section } from "@/lib/types";
 import { useDict, useLocale } from "@/components/i18n/LocaleProvider";
 import LanguageSwitcher from "@/components/i18n/LanguageSwitcher";
 
@@ -27,11 +27,13 @@ export default function PublicMobileMenu({
   monday,
   sections,
   entries,
+  closedDays,
   showLabeling,
 }: {
   monday: string;
   sections: Section[];
   entries: MenuEntry[];
+  closedDays: ClosedDay[];
   showLabeling: boolean;
 }) {
   const router = useRouter();
@@ -60,11 +62,18 @@ export default function PublicMobileMenu({
   }
 
   function renderDay(day: { weekday: string; iso: string }) {
+    const closed = closedDays.find((c) => c.closed_date === day.iso);
     return (
       <div key={day.iso} className="mb-4 last:mb-0">
         <h3 className="font-bold text-[var(--c-primary)] mb-2">
           {day.weekday} · {formatDateLong(day.iso, dict.dateLocale)}
         </h3>
+        {closed ? (
+          <div className="rounded-md border border-red-200 bg-red-50 px-3 py-2 text-sm text-red-700">
+            <span className="font-semibold">{dict.publicMenu.closedLabel}</span>
+            {localized(closed, locale) && <span> – {localized(closed, locale)}</span>}
+          </div>
+        ) : (
           <div className="space-y-3">
             {sections.map((s) => {
               const items = entriesFor(entries, day.iso, s.key);
@@ -101,6 +110,7 @@ export default function PublicMobileMenu({
               );
             })}
           </div>
+        )}
       </div>
     );
   }

components/SectionManager.tsx

@@ -7,13 +7,12 @@ import { useCallback, useEffect, useState } from "react";
 import { formatMessage } from "@/lib/i18n/shared";
 import { localized } from "@/lib/types";
 import type { Section } from "@/lib/types";
-import { useDict, useLocale } from "@/components/i18n/LocaleProvider";
+import { useDict, useLanguages, useLocale } from "@/components/i18n/LocaleProvider";
 
 interface SectionForm {
   key: string | null; // null = neue Essenszeit
   label: string;
-  labelEn: string;
+  translations: Record<string, string>;
-  labelPl: string;
   timeFrom: string;
   timeTo: string;
 }
@@ -21,8 +20,7 @@ interface SectionForm {
 const EMPTY_FORM: SectionForm = {
   key: null,
   label: "",
-  labelEn: "",
+  translations: {},
-  labelPl: "",
   timeFrom: "",
   timeTo: "",
 };
@@ -35,6 +33,7 @@ function splitTimeRange(range: string): { from: string; to: string } {
 export default function SectionManager() {
   const dict = useDict();
   const locale = useLocale();
+  const languages = useLanguages().filter((l) => l.code !== "de");
   const [sections, setSections] = useState<Section[]>([]);
   const [form, setForm] = useState<SectionForm | null>(null);
   const [error, setError] = useState<string | null>(null);
@@ -61,9 +60,8 @@ export default function SectionManager() {
     if (!label || !form.timeFrom || !form.timeTo) return;
     const payload = {
       label,
-      label_en: form.labelEn.trim() || null,
-      label_pl: form.labelPl.trim() || null,
       time_range: `${form.timeFrom} - ${form.timeTo}`,
+      translations: form.translations,
     };
 
     const res = form.key
@@ -160,30 +158,28 @@ export default function SectionManager() {
               required
             />
           </div>
+          {languages.length > 0 && (
             <div className="grid gap-3 sm:grid-cols-2">
-            <div>
+              {languages.map((lang) => (
-              <label className="label" htmlFor="section-label-en">
+                <div key={lang.code}>
-                {dict.sectionManager.nameEnLabel}
+                  <label className="label" htmlFor={`section-label-${lang.code}`}>
+                    {lang.label}
                   </label>
                   <input
-                id="section-label-en"
+                    id={`section-label-${lang.code}`}
                     className="input"
-                value={form.labelEn}
+                    value={form.translations[lang.code] ?? ""}
-                onChange={(e) => setForm({ ...form, labelEn: e.target.value })}
+                    onChange={(e) =>
-              />
+                      setForm({
-            </div>
+                        ...form,
-            <div>
+                        translations: { ...form.translations, [lang.code]: e.target.value },
-              <label className="label" htmlFor="section-label-pl">
+                      })
-                {dict.sectionManager.namePlLabel}
+                    }
-              </label>
-              <input
-                id="section-label-pl"
-                className="input"
-                value={form.labelPl}
-                onChange={(e) => setForm({ ...form, labelPl: e.target.value })}
                   />
                 </div>
+              ))}
             </div>
+          )}
           <div className="flex gap-3">
             <div className="max-w-32">
               <label className="label" htmlFor="section-time-from">
@@ -267,8 +263,7 @@ export default function SectionManager() {
                   setForm({
                     key: section.key,
                     label: section.label,
-                    labelEn: section.label_en ?? "",
+                    translations: { ...section.translations },
-                    labelPl: section.label_pl ?? "",
                     timeFrom: from,
                     timeTo: to,
                   });

components/WeekEditor.tsx

@@ -14,12 +14,19 @@ import {
 } from "@/lib/menu";
 import { formatMessage } from "@/lib/i18n/shared";
 import { localized } from "@/lib/types";
-import type { Dish, MenuEntry, Section } from "@/lib/types";
+import type { ClosedDay, Dish, MenuEntry, Section } from "@/lib/types";
-import { useDict, useLocale } from "@/components/i18n/LocaleProvider";
+import { useDict, useLanguages, useLocale } from "@/components/i18n/LocaleProvider";
 
-export default function WeekEditor({ monday }: { monday: string }) {
+export default function WeekEditor({
+  monday,
+  translateEnabled,
+}: {
+  monday: string;
+  translateEnabled: boolean;
+}) {
   const dict = useDict();
   const locale = useLocale();
+  const languages = useLanguages().filter((l) => l.code !== "de");
   const friday = addDays(monday, 4);
   const days = dict.weekdays.long.map((weekday, i) => ({
     weekday,
@@ -32,6 +39,7 @@ export default function WeekEditor({ monday }: { monday: string }) {
   const [sections, setSections] = useState<Section[]>([]);
   const [dishes, setDishes] = useState<Dish[]>([]);
   const [entries, setEntries] = useState<MenuEntry[]>([]);
+  const [closedDays, setClosedDays] = useState<ClosedDay[]>([]);
   const [loading, setLoading] = useState(true);
   const [error, setError] = useState<string | null>(null);
   // Zelle, in der gerade ein Gericht hinzugefügt wird
@@ -43,6 +51,19 @@ export default function WeekEditor({ monday }: { monday: string }) {
   // Mobil: ein Tag auf einmal statt aller fünf gleichzeitig
   const [selectedDayIdx, setSelectedDayIdx] = useState(todayIdx >= 0 ? todayIdx : 0);
 
+  // Tag, für den gerade das Schließen-Formular offen ist
+  const [closingIso, setClosingIso] = useState<string | null>(null);
+  const [closeReason, setCloseReason] = useState("");
+  const [closeTranslations, setCloseTranslations] = useState<Record<string, string>>({});
+  const [closeTranslateState, setCloseTranslateState] = useState<"idle" | "busy" | "done">(
+    "idle"
+  );
+  const [closeBusy, setCloseBusy] = useState(false);
+
+  function closedDayFor(iso: string): ClosedDay | undefined {
+    return closedDays.find((c) => c.closed_date === iso);
+  }
+
   function startAdding(iso: string, section: string) {
     setAdding({ iso, section });
     setSelectedDish("");
@@ -57,17 +78,19 @@ export default function WeekEditor({ monday }: { monday: string }) {
 
   const load = useCallback(async () => {
     setError(null);
-    const [se, di, en] = await Promise.all([
+    const [se, di, en, cd] = await Promise.all([
       fetch("/api/sections"),
       fetch("/api/dishes"),
       fetch(`/api/menu-entries?from=${monday}&to=${friday}`),
+      fetch(`/api/closed-days?from=${monday}&to=${friday}`),
     ]);
-    if (!se.ok || !di.ok || !en.ok) {
+    if (!se.ok || !di.ok || !en.ok || !cd.ok) {
       setError(formatMessage(dict.weekEditor.loadError, { message: "load failed" }));
     } else {
       setSections(await se.json());
       setDishes(await di.json());
       setEntries(await en.json());
+      setClosedDays(await cd.json());
     }
     setLoading(false);
   }, [monday, friday, dict]);
@@ -107,6 +130,77 @@ export default function WeekEditor({ monday }: { monday: string }) {
     await load();
   }
 
+  function startClosing(iso: string) {
+    const existing = closedDayFor(iso);
+    setClosingIso(iso);
+    setCloseReason(existing?.reason ?? "");
+    setCloseTranslations({ ...(existing?.translations ?? {}) });
+    setCloseTranslateState("idle");
+  }
+
+  function cancelClosing() {
+    setClosingIso(null);
+  }
+
+  async function saveClosing() {
+    if (!closingIso) return;
+    setCloseBusy(true);
+    setError(null);
+    const res = await fetch("/api/closed-days", {
+      method: "POST",
+      headers: { "Content-Type": "application/json" },
+      body: JSON.stringify({
+        closed_date: closingIso,
+        reason: closeReason.trim() || null,
+        translations: closeTranslations,
+      }),
+    });
+    setCloseBusy(false);
+    if (!res.ok) {
+      setError(formatMessage(dict.weekEditor.saveError, { message: String(res.status) }));
+      return;
+    }
+    setClosingIso(null);
+    await load();
+  }
+
+  async function reopenDay(iso: string) {
+    setCloseBusy(true);
+    setError(null);
+    const res = await fetch(`/api/closed-days/${iso}`, { method: "DELETE" });
+    setCloseBusy(false);
+    if (!res.ok) {
+      setError(formatMessage(dict.weekEditor.deleteError, { message: String(res.status) }));
+      return;
+    }
+    if (closingIso === iso) setClosingIso(null);
+    await load();
+  }
+
+  async function autoTranslateClosing() {
+    if (!closingIso || !closeReason.trim()) return;
+    setCloseTranslateState("busy");
+    setError(null);
+    try {
+      const res = await fetch("/api/translate", {
+        method: "POST",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify({
+          table: "closed_days",
+          id: closedDayFor(closingIso) ? closingIso : null,
+          text: closeReason.trim(),
+        }),
+      });
+      const data = await res.json();
+      if (!res.ok) throw new Error(data?.error ?? `Fehler (${res.status})`);
+      setCloseTranslations((prev) => ({ ...prev, ...(data.translations ?? {}) }));
+      setCloseTranslateState("done");
+    } catch (err) {
+      setError(err instanceof Error ? err.message : String(err));
+      setCloseTranslateState("idle");
+    }
+  }
+
   const [hintBefore, hintAfter] = dict.weekEditor.newDishesHint.split("{link}");
   const selectedDishObj = dishes.find((d) => d.id === selectedDish) ?? null;
   const query = dishSearch.trim().toLowerCase();
@@ -114,6 +208,121 @@ export default function WeekEditor({ monday }: { monday: string }) {
     ? dishes.filter((d) => localized(d, locale).toLowerCase().includes(query))
     : dishes;
 
+  // Kleine Anzeige/Umschaltung unter dem Tagesdatum: "Geschlossen" +
+  // Wieder-öffnen-Button, sonst ein dezenter "Tag schließen"-Link.
+  function renderClosureBadge(iso: string) {
+    const closed = closedDayFor(iso);
+    if (closed) {
+      return (
+        <div className="mt-1 flex flex-wrap items-center justify-center gap-1 text-xs">
+          <span className="rounded-full bg-red-100 text-red-700 px-2 py-0.5 font-semibold">
+            {dict.weekEditor.closedLabel}
+          </span>
+          <button
+            type="button"
+            className="text-gray-400 hover:text-[var(--c-primary)] underline"
+            onClick={() => reopenDay(iso)}
+            disabled={closeBusy}
+          >
+            {dict.weekEditor.reopenDay}
+          </button>
+        </div>
+      );
+    }
+    return (
+      <button
+        type="button"
+        className="mt-1 text-xs text-gray-400 hover:text-[var(--c-primary)] underline"
+        onClick={() => startClosing(iso)}
+      >
+        {dict.weekEditor.closeDay}
+      </button>
+    );
+  }
+
+  // Formular zum Schließen/Bearbeiten eines Tages – ein gemeinsames
+  // Formular für Desktop-Tabelle und mobile Tagesansicht, da immer nur
+  // ein Tag gleichzeitig bearbeitet werden kann.
+  function renderClosingForm() {
+    if (!closingIso) return null;
+    const day = days.find((d) => d.iso === closingIso);
+    return (
+      <form
+        onSubmit={(e) => {
+          e.preventDefault();
+          saveClosing();
+        }}
+        className="card mb-4 space-y-3"
+      >
+        <h2 className="font-semibold">
+          {dict.weekEditor.closeDay}: {day?.weekday} ·{" "}
+          {formatDateLong(closingIso, dict.dateLocale)}
+        </h2>
+        <div>
+          <label className="label" htmlFor="closed-reason">
+            {dict.weekEditor.closedReasonLabel}
+          </label>
+          <input
+            id="closed-reason"
+            className="input"
+            placeholder={dict.weekEditor.closedReasonPlaceholder}
+            value={closeReason}
+            onChange={(e) => setCloseReason(e.target.value)}
+          />
+        </div>
+        {languages.length > 0 && (
+          <div className="grid gap-3 sm:grid-cols-2">
+            {languages.map((lang) => (
+              <div key={lang.code}>
+                <label className="label" htmlFor={`closed-reason-${lang.code}`}>
+                  {lang.label}
+                </label>
+                <input
+                  id={`closed-reason-${lang.code}`}
+                  className="input"
+                  value={closeTranslations[lang.code] ?? ""}
+                  onChange={(e) =>
+                    setCloseTranslations({
+                      ...closeTranslations,
+                      [lang.code]: e.target.value,
+                    })
+                  }
+                />
+              </div>
+            ))}
+          </div>
+        )}
+        {translateEnabled && languages.length > 0 && (
+          <div>
+            <button
+              type="button"
+              className="btn btn-neutral"
+              onClick={autoTranslateClosing}
+              disabled={closeTranslateState === "busy" || !closeReason.trim()}
+            >
+              {closeTranslateState === "busy"
+                ? dict.dishManager.translating
+                : dict.dishManager.autoTranslate}
+            </button>
+            {closeTranslateState === "done" && (
+              <span className="ml-2 text-sm text-green-700">
+                {dict.dishManager.translated}
+              </span>
+            )}
+          </div>
+        )}
+        <div className="flex gap-2">
+          <button type="submit" className="btn btn-add" disabled={closeBusy}>
+            {dict.common.save}
+          </button>
+          <button type="button" className="btn btn-neutral" onClick={cancelClosing}>
+            {dict.common.cancel}
+          </button>
+        </div>
+      </form>
+    );
+  }
+
   // Inhalt einer Tag/Essenszeit-Zelle: Eintragsliste + "hinzufügen"-Flow.
   // Identisches Fragment für Desktop-Tabelle und Mobile-Karten, damit der
   // Bearbeitungs-Zustand (adding/selectedDish/dishSearch) nicht dupliziert
@@ -121,6 +330,7 @@ export default function WeekEditor({ monday }: { monday: string }) {
   // unabhängig davon, welche Ansicht gerade rendert.
   function renderCell(iso: string, sectionKey: string) {
     const isAdding = adding?.iso === iso && adding?.section === sectionKey;
+    const closed = Boolean(closedDayFor(iso));
     return (
       <>
         {entriesFor(entries, iso, sectionKey).map((e) => {
@@ -143,7 +353,7 @@ export default function WeekEditor({ monday }: { monday: string }) {
             </div>
           );
         })}
-        {isAdding ? (
+        {closed ? null : isAdding ? (
           <div className="mt-2 space-y-1 text-left">
             {selectedDishObj ? (
               <div className="flex items-center gap-1 text-sm">
@@ -250,6 +460,7 @@ export default function WeekEditor({ monday }: { monday: string }) {
           {error}
         </p>
       )}
+      {renderClosingForm()}
       {loading ? (
         <p className="text-gray-500">{dict.weekEditor.loading}</p>
       ) : (
@@ -272,9 +483,10 @@ export default function WeekEditor({ monday }: { monday: string }) {
                 </button>
               ))}
             </div>
-            <h2 className="font-bold text-[var(--c-primary)] mb-2">
+            <h2 className="font-bold text-[var(--c-primary)] mb-1">
               {selectedDay.weekday} · {formatDateLong(selectedDay.iso, dict.dateLocale)}
             </h2>
+            <div className="mb-2">{renderClosureBadge(selectedDay.iso)}</div>
             <div className="space-y-3">
               {sections.map((s) => (
                 <div key={s.key} className="rounded-md border border-gray-200 overflow-hidden">
@@ -301,6 +513,7 @@ export default function WeekEditor({ monday }: { monday: string }) {
                       <span className="font-bold">{d.weekday}</span>
                       <br />
                       {formatDateLong(d.iso, dict.dateLocale)}
+                      {renderClosureBadge(d.iso)}
                     </th>
                   ))}
                 </tr>

db/migrations/0006_content_translations.sql

@@ -0,0 +1,71 @@
+-- Teil 2 des "mehrsprachig variabel"-Umbaus: Speiseplan-Inhalte
+-- (Gerichte, Essenszeiten, Allergene, Zusatzstoffe) bekommen eine
+-- Übersetzungstabelle je Ressource statt fester name_en/name_pl-
+-- Spalten (Teil 1, v1.10.0, hat dasselbe schon für die
+-- Bedienoberfläche gemacht). Deutsch bleibt die Basis-Spalte
+-- (name/label) auf der jeweiligen Haupttabelle.
+--
+-- WICHTIG bei Deployments mit echten Daten: vor dem Einspielen ein
+-- Backup ziehen (siehe DEPLOYMENT.md, Abschnitt "Backup") – Schritt 3
+-- entfernt die alten name_en/name_pl-Spalten unwiderruflich, nachdem
+-- Schritt 2 ihren Inhalt in die neuen Tabellen übernommen hat.
+
+-- ---------- Schritt 1: neue Tabellen ----------
+create table dish_translations (
+  dish_id       uuid not null references dishes(id) on delete cascade,
+  language_code text not null references languages(code) on delete cascade,
+  name          text not null,
+  primary key (dish_id, language_code)
+);
+
+create table section_translations (
+  section_key   text not null references sections(key) on delete cascade,
+  language_code text not null references languages(code) on delete cascade,
+  name          text not null,
+  primary key (section_key, language_code)
+);
+
+-- allergens.code/additives.code sind vom Admin umbenennbar (Primary
+-- Key), anders als dishes.id/sections.key – "on update cascade" nötig,
+-- damit eine Umbenennung des Kürzels nicht die Übersetzungszeilen
+-- verwaist.
+create table allergen_translations (
+  allergen_code text not null references allergens(code) on delete cascade on update cascade,
+  language_code text not null references languages(code) on delete cascade,
+  name          text not null,
+  primary key (allergen_code, language_code)
+);
+
+create table additive_translations (
+  additive_code text not null references additives(code) on delete cascade on update cascade,
+  language_code text not null references languages(code) on delete cascade,
+  name          text not null,
+  primary key (additive_code, language_code)
+);
+
+-- ---------- Schritt 2: bestehende Übersetzungen übernehmen ----------
+insert into dish_translations (dish_id, language_code, name)
+select id, 'en', name_en from dishes where name_en is not null and trim(name_en) != '';
+insert into dish_translations (dish_id, language_code, name)
+select id, 'pl', name_pl from dishes where name_pl is not null and trim(name_pl) != '';
+
+insert into section_translations (section_key, language_code, name)
+select key, 'en', label_en from sections where label_en is not null and trim(label_en) != '';
+insert into section_translations (section_key, language_code, name)
+select key, 'pl', label_pl from sections where label_pl is not null and trim(label_pl) != '';
+
+insert into allergen_translations (allergen_code, language_code, name)
+select code, 'en', name_en from allergens where name_en is not null and trim(name_en) != '';
+insert into allergen_translations (allergen_code, language_code, name)
+select code, 'pl', name_pl from allergens where name_pl is not null and trim(name_pl) != '';
+
+insert into additive_translations (additive_code, language_code, name)
+select code, 'en', name_en from additives where name_en is not null and trim(name_en) != '';
+insert into additive_translations (additive_code, language_code, name)
+select code, 'pl', name_pl from additives where name_pl is not null and trim(name_pl) != '';
+
+-- ---------- Schritt 3: alte Spalten entfernen ----------
+alter table dishes drop column name_en, drop column name_pl;
+alter table sections drop column label_en, drop column label_pl;
+alter table allergens drop column name_en, drop column name_pl;
+alter table additives drop column name_en, drop column name_pl;

db/migrations/0007_closed_days.sql

@@ -0,0 +1,18 @@
+-- Kantine an einzelnen Tagen als geschlossen markieren (Feiertage o. Ä.),
+-- mit optionalem, mehrsprachigem Grund. Ein Tag ohne Zeile hier gilt als
+-- regulär geöffnet.
+create table closed_days (
+  closed_date date primary key,
+  reason      text,
+  created_at  timestamptz not null default now()
+);
+
+-- Wert-Spalte heißt bewusst "name" (nicht "reason"), damit die generische
+-- Zugriffsschicht in lib/db/translations.ts unverändert funktioniert –
+-- dieselbe Konvention wie bei section_translations.name für sections.label.
+create table closed_day_translations (
+  closed_date   date not null references closed_days(closed_date) on delete cascade,
+  language_code text not null references languages(code) on delete cascade,
+  name          text not null,
+  primary key (closed_date, language_code)
+);

db/seed-demo.sql

@@ -16,42 +16,81 @@ delete from allergens;
 delete from additives;
 
 -- ---------- Essenszeiten ----------
-insert into sections (key, label, label_en, label_pl, time_range, sort) values
+insert into sections (key, label, time_range, sort) values
-  ('brotzeit',        'Brotzeit',                'Breakfast',              'Śniadanie',                  '09:00 - 10:00', 1),
+  ('brotzeit',        'Brotzeit',                '09:00 - 10:00', 1),
-  ('mittagessen',     'Mittagessen',             'Lunch',                  'Obiad',                       '11:30 - 13:30', 2),
+  ('mittagessen',     'Mittagessen',              '11:30 - 13:30', 2),
-  ('mittagessen_veg', 'Mittagessen vegetarisch', 'Lunch (vegetarian)',     'Obiad (wegetariański)',       '11:30 - 13:30', 3),
+  ('mittagessen_veg', 'Mittagessen vegetarisch',  '11:30 - 13:30', 3),
-  ('suppe',           'Suppe',                   'Soup',                   'Zupa',                        '11:30 - 13:30', 4);
+  ('suppe',           'Suppe',                    '11:30 - 13:30', 4);
+
+insert into section_translations (section_key, language_code, name) values
+  ('brotzeit',        'en', 'Breakfast'),
+  ('brotzeit',        'pl', 'Śniadanie'),
+  ('mittagessen',     'en', 'Lunch'),
+  ('mittagessen',     'pl', 'Obiad'),
+  ('mittagessen_veg', 'en', 'Lunch (vegetarian)'),
+  ('mittagessen_veg', 'pl', 'Obiad (wegetariański)'),
+  ('suppe',           'en', 'Soup'),
+  ('suppe',           'pl', 'Zupa');
 
 -- ---------- Allergene (EU-Kennzeichnung, Buchstaben) ----------
-insert into allergens (code, name, name_en, name_pl, sort) values
+insert into allergens (code, name, sort) values
-  ('A', 'Glutenhaltiges Getreide',        'Cereals containing gluten',        'Zboża zawierające gluten',      1),
+  ('A', 'Glutenhaltiges Getreide',        1),
-  ('B', 'Krebstiere',                     'Crustaceans',                      'Skorupiaki',                     2),
+  ('B', 'Krebstiere',                     2),
-  ('C', 'Eier',                           'Eggs',                             'Jaja',                           3),
+  ('C', 'Eier',                           3),
-  ('D', 'Fisch',                          'Fish',                             'Ryby',                           4),
+  ('D', 'Fisch',                          4),
-  ('E', 'Erdnüsse',                       'Peanuts',                          'Orzeszki ziemne',                5),
+  ('E', 'Erdnüsse',                       5),
-  ('F', 'Sojabohnen',                     'Soybeans',                         'Soja',                           6),
+  ('F', 'Sojabohnen',                     6),
-  ('G', 'Milch (einschließlich Laktose)', 'Milk (including lactose)',         'Mleko (w tym laktoza)',          7),
+  ('G', 'Milch (einschließlich Laktose)', 7),
-  ('H', 'Schalenfrüchte (Nüsse)',         'Tree nuts',                        'Orzechy',                        8),
+  ('H', 'Schalenfrüchte (Nüsse)',         8),
-  ('I', 'Sellerie',                       'Celery',                           'Seler',                          9),
+  ('I', 'Sellerie',                       9),
-  ('J', 'Senf',                           'Mustard',                          'Gorczyca',                      10),
+  ('J', 'Senf',                          10),
-  ('K', 'Sesamsamen',                     'Sesame seeds',                     'Nasiona sezamu',                11),
+  ('K', 'Sesamsamen',                    11),
-  ('L', 'Schwefeldioxid und Sulfite',     'Sulphur dioxide and sulphites',    'Dwutlenek siarki i siarczyny',  12),
+  ('L', 'Schwefeldioxid und Sulfite',    12),
-  ('M', 'Lupinen',                        'Lupin',                            'Łubin',                         13),
+  ('M', 'Lupinen',                       13),
-  ('N', 'Weichtiere',                     'Molluscs',                         'Mięczaki',                      14);
+  ('N', 'Weichtiere',                    14);
+
+insert into allergen_translations (allergen_code, language_code, name) values
+  ('A', 'en', 'Cereals containing gluten'),      ('A', 'pl', 'Zboża zawierające gluten'),
+  ('B', 'en', 'Crustaceans'),                    ('B', 'pl', 'Skorupiaki'),
+  ('C', 'en', 'Eggs'),                           ('C', 'pl', 'Jaja'),
+  ('D', 'en', 'Fish'),                           ('D', 'pl', 'Ryby'),
+  ('E', 'en', 'Peanuts'),                        ('E', 'pl', 'Orzeszki ziemne'),
+  ('F', 'en', 'Soybeans'),                       ('F', 'pl', 'Soja'),
+  ('G', 'en', 'Milk (including lactose)'),       ('G', 'pl', 'Mleko (w tym laktoza)'),
+  ('H', 'en', 'Tree nuts'),                      ('H', 'pl', 'Orzechy'),
+  ('I', 'en', 'Celery'),                         ('I', 'pl', 'Seler'),
+  ('J', 'en', 'Mustard'),                        ('J', 'pl', 'Gorczyca'),
+  ('K', 'en', 'Sesame seeds'),                   ('K', 'pl', 'Nasiona sezamu'),
+  ('L', 'en', 'Sulphur dioxide and sulphites'),  ('L', 'pl', 'Dwutlenek siarki i siarczyny'),
+  ('M', 'en', 'Lupin'),                          ('M', 'pl', 'Łubin'),
+  ('N', 'en', 'Molluscs'),                       ('N', 'pl', 'Mięczaki');
 
 -- ---------- Zusatzstoffe (Ziffern) ----------
-insert into additives (code, name, name_en, name_pl, sort) values
+insert into additives (code, name, sort) values
-  ('1',  'mit Farbstoff',                    'with colouring',                       'z barwnikiem',                     1),
+  ('1',  'mit Farbstoff',                    1),
-  ('2',  'mit Konservierungsstoff',          'with preservative',                    'z konserwantem',                   2),
+  ('2',  'mit Konservierungsstoff',          2),
-  ('3',  'mit Antioxidationsmittel',         'with antioxidant',                     'z przeciwutleniaczem',             3),
+  ('3',  'mit Antioxidationsmittel',         3),
-  ('4',  'mit Geschmacksverstärker',         'with flavour enhancer',                'ze wzmacniaczem smaku',            4),
+  ('4',  'mit Geschmacksverstärker',         4),
-  ('5',  'geschwefelt',                      'sulphured',                            'siarkowany',                       5),
+  ('5',  'geschwefelt',                      5),
-  ('6',  'geschwärzt',                       'blackened',                            'barwiony na czarno',               6),
+  ('6',  'geschwärzt',                       6),
-  ('7',  'gewachst',                         'waxed',                                'woskowany',                        7),
+  ('7',  'gewachst',                         7),
-  ('8',  'mit Phosphat',                     'with phosphate',                       'z fosforanem',                     8),
+  ('8',  'mit Phosphat',                     8),
-  ('9',  'mit Süßungsmittel(n)',             'with sweetener(s)',                    'ze słodzikiem/słodzikami',         9),
+  ('9',  'mit Süßungsmittel(n)',             9),
-  ('10', 'enthält eine Phenylalaninquelle',  'contains a source of phenylalanine',   'zawiera źródło fenyloalaniny',    10),
+  ('10', 'enthält eine Phenylalaninquelle', 10),
-  ('11', 'koffeinhaltig',                    'caffeinated',                          'zawiera kofeinę',                 11);
+  ('11', 'koffeinhaltig',                   11);
+
+insert into additive_translations (additive_code, language_code, name) values
+  ('1',  'en', 'with colouring'),                     ('1',  'pl', 'z barwnikiem'),
+  ('2',  'en', 'with preservative'),                  ('2',  'pl', 'z konserwantem'),
+  ('3',  'en', 'with antioxidant'),                   ('3',  'pl', 'z przeciwutleniaczem'),
+  ('4',  'en', 'with flavour enhancer'),               ('4',  'pl', 'ze wzmacniaczem smaku'),
+  ('5',  'en', 'sulphured'),                           ('5',  'pl', 'siarkowany'),
+  ('6',  'en', 'blackened'),                           ('6',  'pl', 'barwiony na czarno'),
+  ('7',  'en', 'waxed'),                               ('7',  'pl', 'woskowany'),
+  ('8',  'en', 'with phosphate'),                      ('8',  'pl', 'z fosforanem'),
+  ('9',  'en', 'with sweetener(s)'),                   ('9',  'pl', 'ze słodzikiem/słodzikami'),
+  ('10', 'en', 'contains a source of phenylalanine'),  ('10', 'pl', 'zawiera źródło fenyloalaniny'),
+  ('11', 'en', 'caffeinated'),                         ('11', 'pl', 'zawiera kofeinę');
 
 -- ---------- Testgerichte ----------
 insert into dishes (name, price) values

lib/db/closed-days.ts

@@ -0,0 +1,50 @@
+import "server-only";
+import { query, queryOne } from "@/lib/db";
+import { loadTranslationsFor, replaceTranslations } from "./translations";
+import type { ClosedDay } from "@/lib/types";
+
+interface ClosedDayRow {
+  closed_date: string;
+  reason: string | null;
+}
+
+/** Geschlossene Tage in einem Zeitraum (für Wochenplan/öffentliche Speisekarte/RSS). */
+export async function listClosedDays(fromISO: string, toISO: string): Promise<ClosedDay[]> {
+  const rows = await query<ClosedDayRow>(
+    "select closed_date, reason from closed_days where closed_date between $1 and $2",
+    [fromISO, toISO]
+  );
+  if (rows.length === 0) return [];
+  const translations = await loadTranslationsFor(
+    "closed_day_translations",
+    rows.map((r) => r.closed_date)
+  );
+  return rows.map((r) => ({
+    ...r,
+    translations: translations.get(r.closed_date) ?? {},
+  }));
+}
+
+/** Tag als geschlossen markieren (oder bestehenden Grund aktualisieren). */
+export async function setClosedDay(
+  date: string,
+  reason: string | null,
+  translations?: Record<string, string | null>
+): Promise<ClosedDay> {
+  const row = (await queryOne<ClosedDayRow>(
+    `insert into closed_days (closed_date, reason) values ($1, $2)
+     on conflict (closed_date) do update set reason = excluded.reason
+     returning closed_date, reason`,
+    [date, reason]
+  ))!;
+  if (translations) {
+    await replaceTranslations("closed_day_translations", row.closed_date, translations);
+  }
+  const loaded = await loadTranslationsFor("closed_day_translations", [row.closed_date]);
+  return { ...row, translations: loaded.get(row.closed_date) ?? {} };
+}
+
+/** Tag wieder öffnen (löscht auch alle Übersetzungen des Grunds per Cascade). */
+export async function removeClosedDay(date: string): Promise<void> {
+  await query("delete from closed_days where closed_date = $1", [date]);
+}

lib/db/code-lists.ts

@@ -1,39 +1,70 @@
 import "server-only";
-import { query, queryOne, withTransaction } from "@/lib/db";
+import { query, queryOne } from "@/lib/db";
+import {
+  loadTranslations,
+  loadTranslationsFor,
+  replaceTranslations,
+  type TranslationTable,
+} from "./translations";
 import type { CodeItem } from "@/lib/types";
 
 // "allergens"/"additives" sind identisch aufgebaute Tabellen (Kürzel +
-// Bezeichnung in DE/EN/PL). Tabellenname kommt nie aus Nutzereingaben,
+// Bezeichnung in Deutsch, Übersetzungen in der jeweiligen
+// *_translations-Tabelle). Tabellenname kommt nie aus Nutzereingaben,
 // sondern immer aus dem literal getypten Parameter unten – sicher für
 // String-Interpolation in der Query.
 export type CodeTable = "allergens" | "additives";
 
+const TRANSLATION_TABLE: Record<CodeTable, TranslationTable> = {
+  allergens: "allergen_translations",
+  additives: "additive_translations",
+};
+
+interface CodeRow {
+  code: string;
+  name: string;
+  sort: number;
+}
+
 export async function listCodes(table: CodeTable): Promise<CodeItem[]> {
-  return query<CodeItem>(`select * from ${table} order by sort`);
+  const rows = await query<CodeRow>(`select code, name, sort from ${table} order by sort`);
+  const translations = await loadTranslations(TRANSLATION_TABLE[table]);
+  return rows.map((r) => ({ ...r, translations: translations.get(r.code) ?? {} }));
 }
 
 export async function createCode(
   table: CodeTable,
-  input: { code: string; name: string; name_en: string | null; name_pl: string | null }
+  input: { code: string; name: string; translations?: Record<string, string | null> }
 ): Promise<CodeItem> {
   const maxRow = await queryOne<{ sort: number }>(
     `select sort from ${table} order by sort desc limit 1`
   );
-  return (await queryOne<CodeItem>(
+  const row = (await queryOne<CodeRow>(
-    `insert into ${table} (code, name, name_en, name_pl, sort) values ($1, $2, $3, $4, $5) returning *`,
+    `insert into ${table} (code, name, sort) values ($1, $2, $3) returning code, name, sort`,
-    [input.code, input.name, input.name_en, input.name_pl, (maxRow?.sort ?? 0) + 1]
+    [input.code, input.name, (maxRow?.sort ?? 0) + 1]
   ))!;
+  if (input.translations) {
+    await replaceTranslations(TRANSLATION_TABLE[table], row.code, input.translations);
+  }
+  const translations = await loadTranslationsFor(TRANSLATION_TABLE[table], [row.code]);
+  return { ...row, translations: translations.get(row.code) ?? {} };
 }
 
 export async function updateCode(
   table: CodeTable,
   originalCode: string,
-  input: { code: string; name: string; name_en: string | null; name_pl: string | null }
+  input: { code: string; name: string; translations?: Record<string, string | null> }
 ): Promise<CodeItem | null> {
-  return queryOne<CodeItem>(
+  const row = await queryOne<CodeRow>(
-    `update ${table} set code = $1, name = $2, name_en = $3, name_pl = $4 where code = $5 returning *`,
+    `update ${table} set code = $1, name = $2 where code = $3 returning code, name, sort`,
-    [input.code, input.name, input.name_en, input.name_pl, originalCode]
+    [input.code, input.name, originalCode]
   );
+  if (!row) return null;
+  if (input.translations) {
+    await replaceTranslations(TRANSLATION_TABLE[table], row.code, input.translations);
+  }
+  const translations = await loadTranslationsFor(TRANSLATION_TABLE[table], [row.code]);
+  return { ...row, translations: translations.get(row.code) ?? {} };
 }
 
 export async function deleteCode(table: CodeTable, code: string): Promise<void> {
@@ -43,8 +74,7 @@ export async function deleteCode(table: CodeTable, code: string): Promise<void>
 export interface CodeImportRow {
   code: string;
   name: string;
-  name_en: string | null;
+  translations: Record<string, string>;
-  name_pl: string | null;
 }
 
 /** CSV-Import: legt neue Kürzel an, bestehende (gleicher Code) werden
@@ -54,32 +84,31 @@ export async function importCodes(
   table: CodeTable,
   rows: CodeImportRow[]
 ): Promise<{ created: number; updated: number }> {
-  return withTransaction(async (client) => {
+  const existing = await query<{ code: string }>(`select code from ${table}`);
-    const existing = await client.query<{ code: string }>(`select code from ${table}`);
+  const known = new Set(existing.map((r) => r.code));
-    const known = new Set(existing.rows.map((r) => r.code));
+  const maxRow = await queryOne<{ sort: number }>(
-    const maxRow = await client.query<{ sort: number }>(
     `select coalesce(max(sort), 0) as sort from ${table}`
   );
-    let nextSort = (maxRow.rows[0]?.sort ?? 0) + 1;
+  let nextSort = (maxRow?.sort ?? 0) + 1;
   let created = 0;
   let updated = 0;
 
   for (const row of rows) {
     if (known.has(row.code)) {
-        await client.query(
+      await query(`update ${table} set name = $1 where code = $2`, [row.name, row.code]);
-          `update ${table} set name = $1, name_en = $2, name_pl = $3 where code = $4`,
-          [row.name, row.name_en, row.name_pl, row.code]
-        );
       updated++;
     } else {
-        await client.query(
+      await query(`insert into ${table} (code, name, sort) values ($1, $2, $3)`, [
-          `insert into ${table} (code, name, name_en, name_pl, sort) values ($1, $2, $3, $4, $5)`,
+        row.code,
-          [row.code, row.name, row.name_en, row.name_pl, nextSort++]
+        row.name,
-        );
+        nextSort++,
+      ]);
       known.add(row.code);
       created++;
     }
+    if (Object.keys(row.translations).length > 0) {
+      await replaceTranslations(TRANSLATION_TABLE[table], row.code, row.translations);
+    }
   }
   return { created, updated };
-  });
 }

lib/db/menu-entries.ts

@@ -1,5 +1,6 @@
 import "server-only";
 import { query } from "@/lib/db";
+import { loadTranslationsFor } from "./translations";
 import type { MenuEntry } from "@/lib/types";
 
 interface MenuEntryRow {
@@ -9,8 +10,6 @@ interface MenuEntryRow {
   position: number;
   dish_id: string;
   name: string;
-  name_en: string | null;
-  name_pl: string | null;
   price: string;
   allergens: string[];
   additives: string[];
@@ -22,7 +21,7 @@ interface MenuEntryRow {
 export async function loadMenuEntries(fromISO: string, toISO: string): Promise<MenuEntry[]> {
   const rows = await query<MenuEntryRow>(
     `select me.id, me.menu_date, me.section_key, me.position,
-            d.id as dish_id, d.name, d.name_en, d.name_pl, d.price, d.allergens, d.additives
+            d.id as dish_id, d.name, d.price, d.allergens, d.additives
      from menu_entries me
      join dishes d on d.id = me.dish_id
      where me.menu_date between $1 and $2
@@ -30,6 +29,9 @@ export async function loadMenuEntries(fromISO: string, toISO: string): Promise<M
     [fromISO, toISO]
   );
 
+  const dishIds = [...new Set(rows.map((r) => r.dish_id))];
+  const translations = await loadTranslationsFor("dish_translations", dishIds);
+
   return rows.map((r) => ({
     id: r.id,
     menu_date: r.menu_date,
@@ -38,8 +40,7 @@ export async function loadMenuEntries(fromISO: string, toISO: string): Promise<M
     dish: {
       id: r.dish_id,
       name: r.name,
-      name_en: r.name_en,
+      translations: translations.get(r.dish_id) ?? {},
-      name_pl: r.name_pl,
       price: Number(r.price),
       allergens: r.allergens,
       additives: r.additives,

lib/db/translations.ts

@@ -0,0 +1,87 @@
+import "server-only";
+import { query } from "@/lib/db";
+
+// Gemeinsame Zugriffsschicht für die vier Übersetzungstabellen aus
+// db/migrations/0006_content_translations.sql. Die Wert-Spalte heißt
+// in allen vieren bewusst einheitlich "name" (auch bei
+// section_translations, obwohl sections.label selbst anders heißt) –
+// vereinfacht diese generischen Helfer, statt zusätzlich eine Spalten-
+// Namens-Zuordnung pflegen zu müssen.
+export type TranslationTable =
+  | "dish_translations"
+  | "section_translations"
+  | "allergen_translations"
+  | "additive_translations"
+  | "closed_day_translations";
+
+const ID_COLUMN: Record<TranslationTable, string> = {
+  dish_translations: "dish_id",
+  section_translations: "section_key",
+  allergen_translations: "allergen_code",
+  additive_translations: "additive_code",
+  closed_day_translations: "closed_date",
+};
+
+/** Alle Übersetzungen einer Tabelle, gruppiert nach Eltern-ID. */
+export async function loadTranslations(
+  table: TranslationTable
+): Promise<Map<string, Record<string, string>>> {
+  const idCol = ID_COLUMN[table];
+  const rows = await query<{ id: string; language_code: string; name: string }>(
+    `select ${idCol} as id, language_code, name from ${table}`
+  );
+  return groupByParent(rows);
+}
+
+/** Übersetzungen nur für eine Teilmenge von Eltern-IDs laden (z. B. die
+ *  Gerichte des aktuell angezeigten Wochenplan-Zeitraums). */
+export async function loadTranslationsFor(
+  table: TranslationTable,
+  ids: string[]
+): Promise<Map<string, Record<string, string>>> {
+  if (ids.length === 0) return new Map();
+  const idCol = ID_COLUMN[table];
+  const rows = await query<{ id: string; language_code: string; name: string }>(
+    `select ${idCol} as id, language_code, name from ${table} where ${idCol} = any($1)`,
+    [ids]
+  );
+  return groupByParent(rows);
+}
+
+function groupByParent(
+  rows: { id: string; language_code: string; name: string }[]
+): Map<string, Record<string, string>> {
+  const map = new Map<string, Record<string, string>>();
+  for (const r of rows) {
+    if (!map.has(r.id)) map.set(r.id, {});
+    map.get(r.id)![r.language_code] = r.name;
+  }
+  return map;
+}
+
+/** Übersetzungen eines Eintrags für die übergebenen Sprachen setzen –
+ *  ein leerer/nur-Leerzeichen-Wert löscht die Zeile für diese Sprache
+ *  wieder (z. B. wenn ein Formularfeld geleert wird), statt eine leere
+ *  Übersetzung zu speichern. */
+export async function replaceTranslations(
+  table: TranslationTable,
+  id: string,
+  translations: Record<string, string | null | undefined>
+): Promise<void> {
+  const idCol = ID_COLUMN[table];
+  for (const [languageCode, rawValue] of Object.entries(translations)) {
+    const value = rawValue?.trim();
+    if (!value) {
+      await query(`delete from ${table} where ${idCol} = $1 and language_code = $2`, [
+        id,
+        languageCode,
+      ]);
+      continue;
+    }
+    await query(
+      `insert into ${table} (${idCol}, language_code, name) values ($1, $2, $3)
+       on conflict (${idCol}, language_code) do update set name = excluded.name`,
+      [id, languageCode, value]
+    );
+  }
+}

lib/i18n/dictionaries.ts

@@ -75,6 +75,7 @@ const de = {
     suggestDish: "Rezept vorschlagen",
     noEntry: "–",
     rssFeed: "RSS-Feed abonnieren",
+    closedLabel: "Geschlossen",
   },
   weekEditor: {
     title: "Wochenplan",
@@ -87,14 +88,17 @@ const de = {
     duplicateEntry: "Dieses Gericht ist an diesem Tag bereits zugewiesen.",
     saveError: "Speichern fehlgeschlagen: {message}",
     deleteError: "Löschen fehlgeschlagen: {message}",
+    closeDay: "Tag schließen",
+    reopenDay: "Wieder öffnen",
+    closedLabel: "Geschlossen",
+    closedReasonLabel: "Grund (optional)",
+    closedReasonPlaceholder: "z. B. Weihnachtsfeiertage",
   },
   dishManager: {
     title: "Gerichte",
     newDish: "Neues Gericht",
     editDish: "Gericht bearbeiten",
     nameLabel: "Bezeichnung",
-    nameEnLabel: "Name (Englisch)",
-    namePlLabel: "Name (Polnisch)",
     autoTranslate: "Automatisch übersetzen",
     translating: "Übersetze…",
     translated: "Übersetzt.",
@@ -150,8 +154,6 @@ const de = {
     newSection: "Neue Essenszeit",
     editSection: "Essenszeit bearbeiten",
     nameLabel: "Bezeichnung",
-    nameEnLabel: "Bezeichnung (Englisch)",
-    namePlLabel: "Bezeichnung (Polnisch)",
     timeFrom: "Von",
     timeTo: "Bis",
     moveUp: "Nach oben",

lib/i18n/index.ts

@@ -14,12 +14,15 @@ export * from "./shared";
 
 /** Aktuelle Sprache aus dem Cookie lesen, validiert gegen die aktiven
  *  Sprachen (Server-Komponenten). Ungültig oder nicht mehr aktiv →
- *  Basis-Sprache. */
+ *  Basis-Sprache, sofern die noch aktiv ist – sonst die erste aktive
+ *  Sprache (z. B. wenn Deutsch im Admin-Bereich deaktiviert wurde). */
 export async function getLocale(): Promise<Locale> {
   const store = await cookies();
   const value = store.get(LOCALE_COOKIE)?.value;
   const active = await listActiveLanguageCodes();
-  return isLocale(value, active) ? value : DEFAULT_LOCALE;
+  if (isLocale(value, active)) return value;
+  if (active.includes(DEFAULT_LOCALE)) return DEFAULT_LOCALE;
+  return active[0] ?? DEFAULT_LOCALE;
 }
 
 /** Wörterbuch für eine Sprache. Nicht-deutsche Sprachen werden aus der

lib/types.ts

@@ -12,8 +12,9 @@ export interface Profile {
 export interface Section {
   key: string;
   label: string;
-  label_en: string | null;
+  // Sprachcode (z. B. "en", "fr") -> übersetzter Name. Enthält nie "de" -
-  label_pl: string | null;
+  // Deutsch ist immer die "label"-Spalte selbst.
+  translations: Record<string, string>;
   time_range: string;
   sort: number;
 }
@@ -21,8 +22,7 @@ export interface Section {
 export interface Dish {
   id: string;
   name: string;
-  name_en: string | null;
+  translations: Record<string, string>;
-  name_pl: string | null;
   price: number;
   allergens: string[];
   additives: string[];
@@ -39,8 +39,7 @@ export interface MenuEntry {
 export interface CodeItem {
   code: string;
   name: string;
-  name_en: string | null;
+  translations: Record<string, string>;
-  name_pl: string | null;
   sort: number;
 }
 
@@ -51,12 +50,36 @@ export interface DishSuggestion {
   created_at: string;
 }
 
+export interface ClosedDay {
+  closed_date: string;
+  reason: string | null;
+  translations: Record<string, string>;
+}
+
 /** Übersetzten Namen für die aktuelle Sprache liefern, sonst Deutsch als Fallback. */
 export function localized(
-  item: { name?: string; label?: string; name_en?: string | null; name_pl?: string | null; label_en?: string | null; label_pl?: string | null },
+  item: {
+    name?: string;
+    label?: string;
+    // Grund eines geschlossenen Tages (s. ClosedDay) – optional, anders
+    // als name/label bei den übrigen Inhaltstypen.
+    reason?: string | null;
+    // Neue, dynamische Form (Gerichte/Essenszeiten/Allergene/
+    // Zusatzstoffe, s. lib/db/translations.ts) – Sprachcode -> Text.
+    translations?: Record<string, string>;
+    // Ältere, feste Form – wird u. a. noch für den Hinweistext in den
+    // Design-Einstellungen genutzt (settings.labeling_notice_en/_pl),
+    // die kein Übersetzungstabellen-Konzept haben.
+    name_en?: string | null;
+    name_pl?: string | null;
+    label_en?: string | null;
+    label_pl?: string | null;
+  },
   locale: string
 ): string {
-  const de = item.name ?? item.label ?? "";
+  const de = item.name ?? item.label ?? item.reason ?? "";
+  if (locale === "de") return de;
+  if (item.translations) return item.translations[locale] || de;
   if (locale === "en") return item.name_en || item.label_en || de;
   if (locale === "pl") return item.name_pl || item.label_pl || de;
   return de;

package.json

@@ -1,6 +1,6 @@
 {
   "name": "canteen-menu",
-  "version": "1.10.0",
+  "version": "1.12.0",
   "private": true,
   "scripts": {
     "predev": "node --env-file-if-exists=.env.local db/migrate.mjs && node --env-file-if-exists=.env.local scripts/bootstrap-admin.mjs",