docs: update WeChat community group QR codes

- Replace 3 old QR codes (group 5/6/7) with 4 new ones (group 6/8/9/10)
- Update both English and Chinese sections in README.md
- Remove obsolete wechat_group5.jpg and wechat_group7.jpg
- Add wechat_group8.jpg, wechat_group9.jpg, wechat_group10.jpg

README.md

@@ -191,9 +191,10 @@ You're also welcome to join our **GenericAgent Community Group** for discussion,
 <div align="center">
   <table>
     <tr>
-      <td align="center"><strong>WeChat Group 5</strong><br><img src="assets/images/wechat_group5.jpg" alt="WeChat Group 5 QR Code" width="250"/></td>
       <td align="center"><strong>WeChat Group 6</strong><br><img src="assets/images/wechat_group6.jpg" alt="WeChat Group 6 QR Code" width="250"/></td>
-      <td align="center"><strong>WeChat Group 7</strong><br><img src="assets/images/wechat_group7.jpg" alt="WeChat Group 7 QR Code" width="250"/></td>
+      <td align="center"><strong>WeChat Group 8</strong><br><img src="assets/images/wechat_group8.jpg" alt="WeChat Group 8 QR Code" width="250"/></td>
+      <td align="center"><strong>WeChat Group 9</strong><br><img src="assets/images/wechat_group9.jpg" alt="WeChat Group 9 QR Code" width="250"/></td>
+      <td align="center"><strong>WeChat Group 10</strong><br><img src="assets/images/wechat_group10.jpg" alt="WeChat Group 10 QR Code" width="250"/></td>
     </tr>
   </table>
 </div>
@@ -464,9 +465,10 @@ GenericAgent 通过**分层记忆 × 最小工具集 × 自主执行循环**完
 <div align="center">
   <table>
     <tr>
-      <td align="center"><strong>微信群 5</strong><br><img src="assets/images/wechat_group5.jpg" alt="微信群 5 二维码" width="250"/></td>
       <td align="center"><strong>微信群 6</strong><br><img src="assets/images/wechat_group6.jpg" alt="微信群 6 二维码" width="250"/></td>
-      <td align="center"><strong>微信群 7</strong><br><img src="assets/images/wechat_group7.jpg" alt="微信群 7 二维码" width="250"/></td>
+      <td align="center"><strong>微信群 8</strong><br><img src="assets/images/wechat_group8.jpg" alt="微信群 8 二维码" width="250"/></td>
+      <td align="center"><strong>微信群 9</strong><br><img src="assets/images/wechat_group9.jpg" alt="微信群 9 二维码" width="250"/></td>
+      <td align="center"><strong>微信群 10</strong><br><img src="assets/images/wechat_group10.jpg" alt="微信群 10 二维码" width="250"/></td>
     </tr>
   </table>
 </div>