test(i18n): add translated page CRUD locale validation coverage

packages/db/prisma/migrations/20260212220000_page_translations/migration.sql

@@ -0,0 +1,24 @@
+-- CreateTable
+CREATE TABLE "PageTranslation" (
+    "id" TEXT NOT NULL,
+    "pageId" TEXT NOT NULL,
+    "locale" TEXT NOT NULL,
+    "title" TEXT NOT NULL,
+    "summary" TEXT,
+    "content" TEXT NOT NULL,
+    "seoTitle" TEXT,
+    "seoDescription" TEXT,
+    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updatedAt" TIMESTAMP(3) NOT NULL,
+
+    CONSTRAINT "PageTranslation_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateIndex
+CREATE INDEX "PageTranslation_locale_idx" ON "PageTranslation"("locale");
+
+-- CreateIndex
+CREATE UNIQUE INDEX "PageTranslation_pageId_locale_key" ON "PageTranslation"("pageId", "locale");
+
+-- AddForeignKey
+ALTER TABLE "PageTranslation" ADD CONSTRAINT "PageTranslation_pageId_fkey" FOREIGN KEY ("pageId") REFERENCES "Page"("id") ON DELETE CASCADE ON UPDATE CASCADE;

packages/db/prisma/schema.prisma

@@ -267,10 +267,28 @@ model Page {
   createdAt      DateTime @default(now())
   updatedAt      DateTime @updatedAt
   navItems       NavigationItem[]
+  translations   PageTranslation[]
 
   @@index([status])
 }
 
+model PageTranslation {
+  id             String   @id @default(uuid())
+  pageId         String
+  locale         String
+  title          String
+  summary        String?
+  content        String
+  seoTitle       String?
+  seoDescription String?
+  createdAt      DateTime @default(now())
+  updatedAt      DateTime @updatedAt
+  page           Page     @relation(fields: [pageId], references: [id], onDelete: Cascade)
+
+  @@unique([pageId, locale])
+  @@index([locale])
+}
+
 model NavigationMenu {
   id        String           @id @default(uuid())
   name      String