Nacos 3.1.1 发布，进一步加强MCP&A2A注册中心能力， 同时2.5.2版本也迎来发布。

## Feature

[#13867] Support override existing configuration when updating MCP server.
[#13922] Add thread pool configuration to allow core thread timeout.
[#13946] Refactor AgentEndpoint model and add new fields to support advanced protocol and queries.
[#13953] Add support for default security configurations, including selection and setup for inbound and outbound security schemes.
[#13957] Support batch registration of agent endpoints.
[#13951] Add configurable CORS filter for console module.

## Enhancement/Refactor

[#13822] Separate responsibilities between client executor and login scheduled executor to prevent thread pool exhaustion.
[#13863] Optimize shutdown.sh script to combine multiple PIDs into a single line for cleaner process termination.
[#13911] Enhance importToolsFromMcp API to support streamable protocol servers.
[#13914] Upgrade checkStyle plugin version to improve code linting and maintainability.
[#13945] Support merging versions when importing MCP server specifications.
[#13963] Refactor List config apis to support return configTags and desc.

## BugFix

[#13140] Fix consistent namespace handling for ConfigChangeNotifyRequest when client namespace is empty.
[#13860] Fix potential null pointer exception risk in ConfigMigrateService.
[#13866] Fix inability to edit imported MCP servers in the console.
[#13869] Fix error creating bean 'consoleHealthController' due to missing dependency injection.
[#13877] Fix namespaceId issue in McpRemoteHandler causing incorrect context propagation.
[#13882] Fix synchronization lock and add volatile keyword for TpsControlManager to ensure thread safety.
[#13884] Fix JSON parsing error in MCP server validation API during import.
[#13902] Fix deprecated Log4j2 package scanning warnings by updating logger initialization logic.
[#13948] Fix failure when updating agent card through the console interface.
[#13959] Fix Password update fails when deployed with independent console/server.
[#13964] Fix when nacos.extension.ai.enabled is false, nacos start failed.

## Dependencies

[#13879] Add unit tests for AI-related components.
[#13881] Add utility APIs for development and testing purposes.

This version is mainly do some enhancement and fix some bugs from 2.5.1.

Please see the details of the changes below:

# Change details

## Enhancement&Refactor
[#12102] Fix deprecated Log4j2 package scanning warnings.
[#13183] Add grpc client request metrics switch.
[#13234] Make the IP input box in Listening Query be required.
[#13297] Add build-helper-maven-plugin to support IDEA auto-recognize generated sources.

## BugFix
[#12484] Fix ConfigController.stopBeta srcUser param is null.
[#13171] Fix the full regular dump for gray configuration.
[#13193] Fix Configuration database health check sql for mysql and derby plugin.
[#13218] Fix naming v1 catalog page service api return all datum when pageSize is large.
[#13223] Fix the permission problem of ip dimension query configuration monitoring.
[#13229] Fix the config tag being lost during configuration export.
[#13249] Fix configuration change plugin return incompatibility.
[#13273] Fix create cluster client don't effect fpr nacos.remote.client.grpc config problem.
[#13400] Fix naming subscriber get appName is `-` problem.
[#13614] Fix namespace conversion bug for default namespaceId from `` to `public`.
[#13629] Fix NPE problem when update instance metadata with null value.
[#13716] Fix namespaceId has no default value in the oracle database plugin.
[#13744] Fix CONFIG_INFO_GRAY_WRAPPER_ROW_MAPPER not registered to database plugin.


## Dependency
[#13183] Bump tomcat-embed-core to 9.0.99.
[#13454] Upgrade nacos-logback-adapter to 1.1.4.