feat: 盲盒想法支持编辑和删除，展示用户已投入的想法列表

src/app/api/blindbox/route.ts

@@ -55,10 +55,15 @@ export async function GET(req: NextRequest) {
   }
 
   try {
-    const [poolCount, drawn] = await Promise.all([
+    const [poolCount, myIdeas, drawn] = await Promise.all([
       prisma.blindBoxIdea.count({
         where: { roomId, status: "in_pool" },
       }),
+      prisma.blindBoxIdea.findMany({
+        where: { roomId, userId, status: "in_pool" },
+        orderBy: { createdAt: "desc" },
+        select: { id: true, content: true, createdAt: true },
+      }),
       prisma.blindBoxIdea.findMany({
         where: { roomId, status: "drawn" },
         orderBy: { createdAt: "desc" },
@@ -69,8 +74,57 @@ export async function GET(req: NextRequest) {
       }),
     ]);
 
-    return NextResponse.json({ poolCount, drawn });
+    return NextResponse.json({ poolCount, myIdeas, drawn });
   } catch {
     return errorResponse("查询失败", 500);
   }
 }
+
+export async function PUT(req: NextRequest) {
+  try {
+    const { ideaId, userId, content } = await req.json();
+
+    if (!userId) return errorResponse("请先登录", 401);
+    if (!ideaId) return errorResponse("缺少 ideaId", 400);
+    if (!content || typeof content !== "string" || content.trim().length === 0) {
+      return errorResponse("内容不能为空", 400);
+    }
+    if (content.trim().length > 200) {
+      return errorResponse("内容不能超过 200 字", 400);
+    }
+
+    const idea = await prisma.blindBoxIdea.findUnique({ where: { id: ideaId } });
+    if (!idea) return errorResponse("想法不存在", 404);
+    if (idea.userId !== userId) return errorResponse("只能编辑自己的想法", 403);
+    if (idea.status !== "in_pool") return errorResponse("已抽中的想法不能编辑", 400);
+
+    const updated = await prisma.blindBoxIdea.update({
+      where: { id: ideaId },
+      data: { content: content.trim() },
+    });
+
+    return NextResponse.json({ id: updated.id, content: updated.content });
+  } catch {
+    return errorResponse("编辑失败", 500);
+  }
+}
+
+export async function DELETE(req: NextRequest) {
+  try {
+    const { ideaId, userId } = await req.json();
+
+    if (!userId) return errorResponse("请先登录", 401);
+    if (!ideaId) return errorResponse("缺少 ideaId", 400);
+
+    const idea = await prisma.blindBoxIdea.findUnique({ where: { id: ideaId } });
+    if (!idea) return errorResponse("想法不存在", 404);
+    if (idea.userId !== userId) return errorResponse("只能删除自己的想法", 403);
+    if (idea.status !== "in_pool") return errorResponse("已抽中的想法不能删除", 400);
+
+    await prisma.blindBoxIdea.delete({ where: { id: ideaId } });
+
+    return NextResponse.json({ deleted: true });
+  } catch {
+    return errorResponse("删除失败", 500);
+  }
+}