docs: update README and CHANGELOG for qwen api compatibility

CHANGELOG.md

@@ -2,6 +2,19 @@
 
 English | [中文](./CHANGELOG.zh.md)
 
+## Unreleased
+
+### Features
+- `baoyu-image-gen`: add DashScope Qwen API compatibility with automatic model routing
+- `baoyu-image-gen`: add default negative_prompt for Qwen API to improve image quality
+
+### Breaking Changes
+- `baoyu-image-gen`: change DashScope default model from `z-image-turbo` to `qwen-image-2.0-pro`
+
+### Documentation
+- `baoyu-image-gen`: add DashScope model compatibility documentation
+- `baoyu-image-gen`: add Qwen API specification document
+
 ## 1.59.0 - 2026-03-09
 
 ### Features

CHANGELOG.zh.md

@@ -2,6 +2,19 @@
 
 [English](./CHANGELOG.md) | 中文
 
+## 未发布
+
+### 新功能
+- `baoyu-image-gen`：新增 DashScope Qwen API 兼容支持，自动模型路由
+- `baoyu-image-gen`：为 Qwen API 添加默认 negative_prompt 提升图片质量
+
+### 破坏性变更
+- `baoyu-image-gen`：DashScope 默认模型从 `z-image-turbo` 变更为 `qwen-image-2.0-pro`
+
+### 文档
+- `baoyu-image-gen`：新增 DashScope 模型兼容性说明文档
+- `baoyu-image-gen`：新增 Qwen API 规格文档
+
 ## 1.59.0 - 2026-03-09
 
 ### 新功能

README.md

@@ -666,7 +666,7 @@ AI SDK-based image generation using official OpenAI, Google and DashScope (Aliyu
 | `DASHSCOPE_API_KEY` | DashScope API key (Aliyun) | - |
 | `OPENAI_IMAGE_MODEL` | OpenAI model | `gpt-image-1.5` |
 | `GOOGLE_IMAGE_MODEL` | Google model | `gemini-3-pro-image-preview` |
-| `DASHSCOPE_IMAGE_MODEL` | DashScope model | `z-image-turbo` |
+| `DASHSCOPE_IMAGE_MODEL` | DashScope model | `qwen-image-2.0-pro` |
 | `OPENAI_BASE_URL` | Custom OpenAI endpoint | - |
 | `GOOGLE_BASE_URL` | Custom Google endpoint | - |
 | `DASHSCOPE_BASE_URL` | Custom DashScope endpoint | - |

README.zh.md

@@ -666,7 +666,7 @@ AI 驱动的生成后端。
 | `DASHSCOPE_API_KEY` | DashScope API 密钥（阿里云） | - |
 | `OPENAI_IMAGE_MODEL` | OpenAI 模型 | `gpt-image-1.5` |
 | `GOOGLE_IMAGE_MODEL` | Google 模型 | `gemini-3-pro-image-preview` |
-| `DASHSCOPE_IMAGE_MODEL` | DashScope 模型 | `z-image-turbo` |
+| `DASHSCOPE_IMAGE_MODEL` | DashScope 模型 | `qwen-image-2.0-pro` |
 | `OPENAI_BASE_URL` | 自定义 OpenAI 端点 | - |
 | `GOOGLE_BASE_URL` | 自定义 Google 端点 | - |
 | `DASHSCOPE_BASE_URL` | 自定义 DashScope 端点 | - |
@@ -923,7 +923,7 @@ GOOGLE_IMAGE_MODEL=gemini-3-pro-image-preview
 
 # DashScope（阿里通义万相）
 DASHSCOPE_API_KEY=sk-xxx
-DASHSCOPE_IMAGE_MODEL=z-image-turbo
+DASHSCOPE_IMAGE_MODEL=qwen-image-2.0-pro
 # DASHSCOPE_BASE_URL=https://dashscope.aliyuncs.com/api/v1
 EOF
 ```