docs: Update README files with new terminology and images for Knowledge Base Management and Agent Mode Tool Call Process

README.md

@@ -288,11 +288,11 @@ On your first visit, you will be automatically redirected to the registration/lo
 
 <table>
   <tr>
-    <td><b>Knowledge Upload</b><br/><img src="./docs/images/knowledges.png" alt="Knowledge Upload Interface"></td>
-    <td><b>Q&A Entry</b><br/><img src="./docs/images/qa.png" alt="Q&A Entry Interface"></td>
+    <td><b>Knowledge Base Management</b><br/><img src="./docs/images/knowledgebases.png" alt="Knowledge Base Management"></td>
+    <td><b>Conversation Settings</b><br/><img src="./docs/images/settings.png" alt="Conversation Settings"></td>
   </tr>
   <tr>
-    <td colspan="2"><b>Rich Text & Image Responses</b><br/><img src="./docs/images/answer.png" alt="Rich Answer Interface"></td>
+    <td colspan="2"><b>Agent Mode Tool Call Process</b><br/><img src="./docs/images/agent-qa.png" alt="Agent Mode Tool Call Process"></td>
   </tr>
 </table>
 

README_CN.md

@@ -290,11 +290,11 @@ http://localhost
 
 <table>
   <tr>
-    <td><b>知识上传</b><br/><img src="./docs/images/knowledges.png" alt="知识上传界面"></td>
-    <td><b>知识问答入口</b><br/><img src="./docs/images/qa.png" alt="知识问答入口"></td>
+    <td><b>知识库管理</b><br/><img src="./docs/images/knowledgebases.png" alt="知识库管理"></td>
+    <td><b>对话设置</b><br/><img src="./docs/images/settings.png" alt="对话设置"></td>
   </tr>
   <tr>
-    <td colspan="2"><b>图文结果回答</b><br/><img src="./docs/images/answer.png" alt="图文结果回答"></td>
+    <td colspan="2"><b>Agent模式工具调用过程</b><br/><img src="./docs/images/agent-qa.png" alt="Agent模式工具调用过程"></td>
   </tr>
 </table>
 

README_JA.md

@@ -289,11 +289,11 @@ http://localhost
 
 <table>
   <tr>
-    <td><b>ナレッジアップロード</b><br/><img src="./docs/images/knowledges.png" alt="ナレッジアップロードインターフェース"></td>
-    <td><b>ナレッジQ&Aエントリー</b><br/><img src="./docs/images/qa.png" alt="ナレッジQ&Aエントリー"></td>
+    <td><b>ナレッジベース管理</b><br/><img src="./docs/images/knowledgebases.png" alt="ナレッジベース管理"></td>
+    <td><b>対話設定</b><br/><img src="./docs/images/settings.png" alt="対話設定"></td>
   </tr>
   <tr>
-    <td colspan="2"><b>図文結果回答</b><br/><img src="./docs/images/answer.png" alt="図文結果回答"></td>
+    <td colspan="2"><b>Agentモードツール呼び出しプロセス</b><br/><img src="./docs/images/agent-qa.png" alt="Agentモードツール呼び出しプロセス"></td>
   </tr>
 </table>