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Date: Mon, 27 Apr 2026 16:55:18 +0000
Subject: [PATCH] =?UTF-8?q?fix(leaderboard):=20=E6=97=A5=E5=BF=97=E5=8C=BA?=
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Copilot CR (PR #328)
JS 历史包袱：typeof null === "object"。之前 fallback 兜底分支日志写
"kind=object"，遇到既有内容是 null 时排查者会误以为是个普通对象，绕半天。
单独识别 null，日志输出 kind=null。

实测三种情况日志输出：
- null    → kind=null
- {...}   → kind=object
- "str"   → kind=string
---
 scripts/generate-leaderboard.mjs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/scripts/generate-leaderboard.mjs b/scripts/generate-leaderboard.mjs
index 2172bf0..5972e8c 100644
--- a/scripts/generate-leaderboard.mjs
+++ b/scripts/generate-leaderboard.mjs
@@ -185,8 +185,10 @@ async function main() {
           preservedExisting = true;
         } else {
           // 非数组（对象、字面量、null 等）→ 不 preserve，走下方兜底覆盖空数组
+          // typeof null === "object" 是 JS 历史包袱，单独标识避免排查时误以为是普通对象
+          const kind = parsed === null ? "null" : typeof parsed;
           console.warn(
-            `[generate-leaderboard] ${OUTPUT} 已存在但内容不是数组（typeof=${typeof parsed}），按无效数据处理，兜底覆盖为 []。`,
+            `[generate-leaderboard] ${OUTPUT} 已存在但内容不是数组（kind=${kind}），按无效数据处理，兜底覆盖为 []。`,
           );
         }
       } catch {