feat: add sponsors section to localized README files

- Add Sponsors section to README.ko.md, README.ja.md, README.zh-cn.md, README.md
- List Numman Ali as the first sponsor
- Move thanks message to end of file to match structure

🤖 Generated with assistance of OhMyOpenCode (https://github.com/code-yeongyu/oh-my-opencode)

README.md

@@ -968,11 +968,15 @@ I have no affiliation with any project or model mentioned here. This is purely p
   - [The fix](https://github.com/sst/opencode/pull/5040) was merged after 1.0.132—use a newer version.
     - Fun fact: That PR was discovered and fixed thanks to OhMyOpenCode's Librarian, Explore, and Oracle setup.
 
-*Special thanks to [@junhoyeo](https://github.com/junhoyeo) for this amazing hero image.*
-
 ## Loved by professionals at
 
 - [Indent](https://indentcorp.com)
   - Making Spray - influencer marketing solution, vovushop - crossborder commerce platform, vreview - ai commerce review marketing solution
 - [Google](https://google.com)
 - [Microsoft](https://microsoft.com)
+
+## Sponsors
+- **Numman Ali** [GitHub](https://github.com/numman-ali) [X](https://x.com/nummanali)
+  - The first sponsor
+
+*Special thanks to [@junhoyeo](https://github.com/junhoyeo) for this amazing hero image.*