feat: 支持教学案例展示功能

packages/server/prisma/migrations/20260918000000_teaching_cases/migration.sql

@@ -0,0 +1,27 @@
+CREATE TABLE `TeachingCase` (
+  `id` VARCHAR(191) NOT NULL,
+  `title` VARCHAR(80) NOT NULL,
+  `displayName` VARCHAR(30) NOT NULL,
+  `lessonCount` INTEGER NOT NULL,
+  `background` VARCHAR(500) NOT NULL,
+  `achievement` VARCHAR(1000) NOT NULL,
+  `frames` JSON NOT NULL,
+  `sortOrder` INTEGER NOT NULL DEFAULT 0,
+  `published` BOOLEAN NOT NULL DEFAULT false,
+  `consentConfirmed` BOOLEAN NOT NULL DEFAULT false,
+  `consentNote` VARCHAR(500) NOT NULL,
+  `consentedAt` DATETIME(3) NULL,
+  `version` INTEGER NOT NULL DEFAULT 1,
+  `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  `updatedAt` DATETIME(3) NOT NULL,
+  INDEX `TeachingCase_published_sortOrder_createdAt_idx` (`published`, `sortOrder`, `createdAt`),
+  PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+CREATE TABLE `TeachingCaseAsset` (
+  `id` VARCHAR(191) NOT NULL,
+  `objectKey` VARCHAR(255) NOT NULL,
+  `ready` BOOLEAN NOT NULL DEFAULT false,
+  `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  UNIQUE INDEX `TeachingCaseAsset_objectKey_key` (`objectKey`),
+  PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;

packages/server/prisma/schema.prisma

@@ -691,3 +691,31 @@ model ProductStockChange {
   @@index([productId, createdAt])
   @@map("product_stock_changes")
 }
+
+// Public teaching stories never reference private ProgressPhoto records.
+model TeachingCase {
+  id               String   @id @default(cuid())
+  title            String   @db.VarChar(80)
+  displayName      String   @db.VarChar(30)
+  lessonCount      Int
+  background       String   @db.VarChar(500)
+  achievement      String   @db.VarChar(1000)
+  frames           Json
+  sortOrder        Int      @default(0)
+  published        Boolean  @default(false)
+  consentConfirmed Boolean  @default(false)
+  consentNote      String   @db.VarChar(500)
+  consentedAt      DateTime?
+  version          Int      @default(1)
+  createdAt        DateTime @default(now())
+  updatedAt        DateTime @updatedAt
+
+  @@index([published, sortOrder, createdAt])
+}
+
+model TeachingCaseAsset {
+  id        String   @id @default(cuid())
+  objectKey String   @unique @db.VarChar(255)
+  ready     Boolean  @default(false)
+  createdAt DateTime @default(now())
+}