feat: 支持评分字段的导入

app/api/levels/route.ts

@@ -70,6 +70,21 @@ function parseRiddleId(raw: unknown): string | null {
   return riddleId
 }
 
+/**
+ * 解析评分：
+ * - undefined / null / '' → null（视为未评分）
+ * - 1-5 整数 → 原样返回
+ * - 其它 → 抛错
+ */
+function parseScore(raw: unknown): number | null {
+  if (raw === undefined || raw === null || raw === '') return null
+  const n = typeof raw === 'number' ? raw : Number(raw)
+  if (!Number.isInteger(n) || n < 1 || n > 5) {
+    throw new Error('评分必须是 1-5 之间的整数')
+  }
+  return n
+}
+
 function optionalString(raw: unknown): string | null {
   return raw ? String(raw) : null
 }
@@ -85,6 +100,8 @@ function buildLevelData(body: Record<string, unknown>) {
     hint1: optionalString(body.hint1),
     hint2: optionalString(body.hint2),
     hint3: optionalString(body.hint3),
+    difficultyScore: parseScore(body.difficultyScore),
+    funScore: parseScore(body.funScore),
   }
 }
 
@@ -112,9 +129,11 @@ export async function POST(request: NextRequest) {
 
     let position: number | undefined
     let riddleId: string | null
+    let data: ReturnType<typeof buildLevelData>
     try {
       position = parsePosition(body.position)
       riddleId = parseRiddleId(body.riddleId)
+      data = buildLevelData(body)
     } catch (e) {
       return NextResponse.json(
         { error: e instanceof Error ? e.message : 'invalid level payload' },
@@ -122,32 +141,18 @@ export async function POST(request: NextRequest) {
       )
     }
 
-    const data = buildLevelData(body)
-
     if (riddleId) {
       const existing = await prisma.level.findUnique({
         where: { riddleId },
       })
 
       if (existing) {
-        let newSortKey: string | undefined
-        if (position !== undefined) {
-          const total = await prisma.level.count()
-          if (position > total) {
-            return NextResponse.json(
-              { error: `position 超出范围，合法区间 [1, ${total}]` },
-              { status: 400 }
-            )
-          }
-          newSortKey = await keyForPosition(position, existing.id)
-        }
-
+        // 命中存量关卡 → 只更新内容字段，绝不动 sortKey / sortOrder。
+        // 关卡顺序由用户在系统里手动维护，批量导入不能覆盖。
+        // 注意：position 在此分支被显式忽略（即便客户端误传也不会被处理）。
         const level = await prisma.level.update({
           where: { id: existing.id },
-          data: {
-            ...data,
-            ...(newSortKey ? { sortKey: newSortKey } : {}),
-          },
+          data, // buildLevelData 不包含 sortKey
         })
 
         return NextResponse.json(level)
@@ -207,11 +212,13 @@ export async function PUT(request: NextRequest) {
     }
 
     let position: number | undefined
+    let data: ReturnType<typeof buildLevelData>
     try {
       position = parsePosition(body.position)
+      data = buildLevelData(body)
     } catch (e) {
       return NextResponse.json(
-        { error: e instanceof Error ? e.message : 'invalid position' },
+        { error: e instanceof Error ? e.message : 'invalid level payload' },
         { status: 400 }
       )
     }
@@ -229,8 +236,6 @@ export async function PUT(request: NextRequest) {
       newSortKey = await keyForPosition(position, id)
     }
 
-    const data = buildLevelData(body)
-
     const level = await prisma.level.update({
       where: { id },
       data: {