fix: 彻底修复章节重复 - createChapters也改用upsert

server/src/modules/book-generator/book-generator.store.ts

@@ -356,8 +356,23 @@ export class BookStore {
     const bookIdNum = parseInt(bookId);
     // 使用 upsert 避免唯一约束冲突
     for (const c of chapters) {
-      await prisma.bookChapter.create({
-        data: {
+      await prisma.bookChapter.upsert({
+        where: {
+          bookId_parentId_level_number: {
+            bookId: bookIdNum,
+            parentId: null,
+            level: 1,
+            number: c.number,
+          }
+        },
+        update: {
+          title: c.title,
+          summary: c.summary,
+          keyPoints: c.keyPoints ? JSON.stringify(c.keyPoints) : null,
+          estimatedWords: c.estimatedWords || 5000,
+          status: 'completed',
+        } as any,
+        create: {
           bookId: bookIdNum,
           parentId: null,
           level: 1,
@@ -366,7 +381,7 @@ export class BookStore {
           summary: c.summary,
           keyPoints: c.keyPoints ? JSON.stringify(c.keyPoints) : null,
           estimatedWords: c.estimatedWords || 5000,
-          status: 'completed', // 大纲已完成
+          status: 'completed',
         } as any,
       });
     }