fix(types): PKG-CHAPTER-04 preserve CJS ESM and legacy consumer contracts

refactor/tasks.json

@@ -1205,11 +1205,14 @@
         "ENG-04",
         "ENG-06"
       ],
-      "status": "todo",
+      "status": "done",
       "risk": "M",
       "deliverable": "承接 03 的自有源码 TS 化，完善公开 Chapters/Option/Result 与 update 推导，关闭声明模块解析和旧消费差异",
       "acceptance": "严格类型检查、旧消费样例通过；声明路径/导出和同步异步兼容；处理 BASE-TYPE-01/03，保持运行时和新旧 TS 模块解析消费",
-      "evidence": []
+      "evidence": [
+        "changes/2026-09-10-PKG-CHAPTER-04-public-types.md",
+        "baselines/chapter-types-validation.json"
+      ]
     },
     {
       "id": "PKG-CHAPTER-05",