docs: update READMEs for 3.0 stable release

- Update TIP banner from beta.10 to stable 3.0 in all languages
- Add Korean language link to Japanese and Chinese READMEs
- Add DeepWiki badge to Japanese and Chinese READMEs
- Adjust DeepWiki badge position in Korean README for consistency

README.ko.md

@@ -16,8 +16,8 @@
 >
 > [!TIP]
 >
-> [![The Orchestrator is now available in beta.](./.github/assets/orchestrator-atlas.png?v=3)](https://github.com/code-yeongyu/oh-my-opencode/releases/tag/v3.0.0-beta.10)
-> > **오케스트레이터가 베타 버전으로 사용 가능합니다. 설치하려면 `oh-my-opencode@3.0.0-beta.10`을 사용하세요.**
+> [![Oh My OpenCode 3.0이 정식 출시되었습니다!](./.github/assets/orchestrator-atlas.png?v=3)](https://github.com/code-yeongyu/oh-my-opencode/releases/tag/v3.0.0)
+> > **Oh My OpenCode 3.0이 정식 출시되었습니다! `oh-my-opencode@latest`를 사용하여 설치하세요.**
 >
 > 함께해요!
 >
@@ -73,10 +73,11 @@
 [![GitHub Stars](https://img.shields.io/github/stars/code-yeongyu/oh-my-opencode?color=ffcb47&labelColor=black&style=flat-square)](https://github.com/code-yeongyu/oh-my-opencode/stargazers)
 [![GitHub Issues](https://img.shields.io/github/issues/code-yeongyu/oh-my-opencode?color=ff80eb&labelColor=black&style=flat-square)](https://github.com/code-yeongyu/oh-my-opencode/issues)
 [![License](https://img.shields.io/badge/license-SUL--1.0-white?labelColor=black&style=flat-square)](https://github.com/code-yeongyu/oh-my-opencode/blob/master/LICENSE.md)
-[![Ask DeepWiki](https://deepwiki.com/badge.svg)](https://deepwiki.com/code-yeongyu/oh-my-opencode)
 
 [English](README.md) | [한국어](README.ko.md) | [日本語](README.ja.md) | [简体中文](README.zh-cn.md)
 
+[![Ask DeepWiki](https://deepwiki.com/badge.svg)](https://deepwiki.com/code-yeongyu/oh-my-opencode)
+
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