Set closed-source commercial license to 299 yuan and add tip QR codes.

Author: makerjackie

README.md

@@ -25,15 +25,15 @@ HackathonWeekly（周周黑客松）社区平台 —— 一个面向创造者的
 
 ### 代码授权
 
-- **非商用/开源使用**：[AGPL-3.0](LICENSE) - 可自由使用，但必须开源
-- **商业使用**：需要[商业授权](docs/legal/commercial-terms.md) - 联系邮箱 **makerjackie@qq.com**
+- **开源商用：免费。** 基于这份代码做产品、收费都可以，只要你的代码同样按 [AGPL-3.0](LICENSE) 开源。
+- **闭源商用：¥299。** 如果要商用且闭源，需要获得作者授权，授权费 299 元，一次买断。详见 [商业授权](docs/legal/commercial-terms.md)。
 
-**什么算商业使用？**
-任何公司或组织用于业务目的的使用都需要商业授权，包括但不限于：
-- 公司内部系统
-- 客户服务平台
-- SaaS 产品
-- 盈利项目
+联系邮箱：**makerjackie@qq.com**。也可以直接扫下面的收款码：既是赞赏，也可以是 299 元闭源授权费。
+
+<p align="center">
+  <img src="docs/sponsor/wxpay.jpg" width="240" alt="微信支付" />
+  <img src="docs/sponsor/alipay.jpg" width="240" alt="支付宝" />
+</p>
 
 ### 文档授权
 
@@ -53,8 +53,6 @@ HackathonWeekly（周周黑客松）社区平台 —— 一个面向创造者的
 
 ## 赞助
 
-如果这个项目对你有帮助，欢迎通过以下方式支持我们：
-
-- [GitHub Sponsors](https://github.com/sponsors/makerjackie)
+如果这个项目对你有帮助，欢迎赞赏，或通过 [GitHub Sponsors](https://github.com/sponsors/makerjackie) 支持。
 
-你的支持帮助我们持续维护和改进社区平台。
+收款码见上方「许可证」一节。赞赏和 299 元闭源授权费都可以扫。

docs/legal/commercial-terms.md

@@ -3,26 +3,31 @@
 ## Overview
 
 This software is dual-licensed:
-- **AGPL-3.0** for non-commercial and open-source use
-- **Commercial License** for commercial use
 
-## What Requires a Commercial License?
+- **AGPL-3.0** for open-source use, including commercial use if you also open-source your work
+- **Closed-source commercial license** for commercial use without releasing source
+
+## Open-source commercial use
+
+Free. You may ship and sell a product based on this code if you also release your source under AGPL-3.0.
+
+## Closed-source commercial use
+
+CNY **299**, paid once.
+
+This covers commercial use where you do not want to open-source your modifications, including:
 
-Any use by a company or organization for business purposes requires a commercial license, including but not limited to:
 - Internal business tools and systems
 - Customer-facing applications
 - SaaS platforms
-- Revenue-generating projects
-
-## How to Obtain a Commercial License
+- Revenue-generating closed-source projects
 
-Contact us via email: **makerjackie@qq.com**
+## How to obtain a closed-source license
 
-We offer flexible licensing terms based on your use case.
+Contact **makerjackie@qq.com**, or pay CNY 299 via WeChat / Alipay using the codes in [README](../../README.md) and email a note.
 
-## Benefits of Commercial License
+## Benefits
 
 - No requirement to open-source your modifications
 - No AGPL-3.0 copyleft obligations
-- Commercial support available
-- Legal protection for your business use
+- Legal cover for closed-source commercial use