From c5c54e26dab507ba9dbba69aa00a85e65796becb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jim=20Liu=20=E5=AE=9D=E7=8E=89?= <junminliu@gmail.com>
Date: Sun, 5 Apr 2026 13:55:58 -0500
Subject: [PATCH] chore: release v1.90.1

---
 .claude-plugin/marketplace.json | 2 +-
 CHANGELOG.md                    | 5 +++++
 CHANGELOG.zh.md                 | 5 +++++
 CLAUDE.md                       | 2 +-
 4 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/.claude-plugin/marketplace.json b/.claude-plugin/marketplace.json
index 5432997..6c58971 100644
--- a/.claude-plugin/marketplace.json
+++ b/.claude-plugin/marketplace.json
@@ -6,7 +6,7 @@
   },
   "metadata": {
     "description": "Skills shared by Baoyu for improving daily work efficiency",
-    "version": "1.90.0"
+    "version": "1.90.1"
   },
   "plugins": [
     {
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 722981d..efe74af 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,11 @@
 
 English | [中文](./CHANGELOG.zh.md)
 
+## 1.90.1 - 2026-04-05
+
+### Fixes
+- `baoyu-post-to-wechat`: detect actual image format from buffer magic bytes to fix CDN content-type mismatches (e.g. WebP served for .png URLs); treat WebP as PNG-preferred for transparency handling
+
 ## 1.89.1 - 2026-04-01
 
 ### Features
diff --git a/CHANGELOG.zh.md b/CHANGELOG.zh.md
index da12155..01ede8c 100644
--- a/CHANGELOG.zh.md
+++ b/CHANGELOG.zh.md
@@ -2,6 +2,11 @@
 
 [English](./CHANGELOG.md) | 中文
 
+## 1.90.1 - 2026-04-05
+
+### 修复
+- `baoyu-post-to-wechat`：通过 magic bytes 检测实际图片格式，修复 CDN 返回与 URL 扩展名不一致的 content-type 问题（如 .png URL 实际返回 WebP）；WebP 格式按 PNG 策略处理以保留透明度
+
 ## 1.89.1 - 2026-04-01
 
 ### 新功能
diff --git a/CLAUDE.md b/CLAUDE.md
index 404ed78..f76c09e 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -1,6 +1,6 @@
 # CLAUDE.md
 
-Claude Code marketplace plugin providing AI-powered content generation skills. Version: **1.90.0**.
+Claude Code marketplace plugin providing AI-powered content generation skills. Version: **1.90.1**.
 
 ## Architecture