feat(chat): Enhance session management with new API endpoints and filtering options

- Added `status` query parameter to `list_sessions_api` for filtering sessions by their status (active/closed).
- Introduced `close_all_sessions_api` endpoint to allow users to close all active sessions for the current actor.
- Updated `SessionRepository` to support status filtering in session listing and implemented logic for closing active sessions.
- Improved Redis connection settings for better performance and reliability.

This update enhances the chat functionality by providing more control over session management, improving user experience and system efficiency.

docs/course/jinrong-module-risk/modules/01-capabilities.html

@@ -6,7 +6,7 @@
       风控专员 Demo <code>STAFF-30001</code> 带 <code>risk_officer</code> + <code>risk_demo</code> 角色：
       能看预警台账、处置、跑 AML 扫描，还能在模拟交易页触发规则引擎。
       本地登录页一键切换，改 JWT 角色后需<strong>重新登录</strong>。
-      仓库基线 <code>merger</code> · <code>python -m pytest</code> → <strong>795 passed</strong>。
+      仓库基线 <code>merger</code> · <code>python -m pytest</code> → <strong>804 passed</strong>。
     </p>
 
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