docs: add CHANGELOG for python v0.1.0

Guo-Zhang · Guo-Zhang · commit f940ea104673 · 2026-05-13T17:51:26.000+08:00
diff --git a/packages/python/CHANGELOG.md b/packages/python/CHANGELOG.md
@@ -1,3 +1,10 @@
+## 0.1.0
+
+- 正式发布
+- Project/Task 基于 Pydantic BaseModel
+- JSON 序列化 (to_dict / model_validate)
+- Task.replace() 等效 Dart copyWith
+
 ## 0.1.0-rc.1
 
 - 初始测试发布
