<!-- If you need to report a security issue please visit https://github.com/apache/dubbo/security/policy -->

- [ ] I have searched the [issues](https://github.com/apache/dubbo/issues) of this repository and believe that this is not a duplicate.

## Describe the proposal
<!-- Please use this for a concrete design proposal for functionality. -->
<!-- If you just want to request a new feature and discuss the possible business value, create a Feature Request. -->

EN:
Observability task, optimizing thread pool index embedding function
1 Need to specify a name for the core thread pool
2 Core thread pool index is not effective
3. Remove the frame-level indicators and only keep the core monitoring indicators (the frame-level code type is completely deleted and will be considered later)

可观测性任务，优化线程池指标埋点功能
1需要为核心线程池指定名称
2核心线程池指标生效问题
3移除框架层指标只保留核心监控指标
prepareApplicationInstance();
            }
            DeployState newState = calculateState();
            switch (newState) {
                case STARTED:
                    onStarted();
                    break;
                case STARTING:
                    onStarting();
                    break;
                case STOPPING:
                    onStopping();
                    break;
                case STOPPED:
                    onStopped();
                    break;
                case FAILED:
                    Throwable error = null;
                    ModuleModel errorModule = null;
                    for (ModuleModel module : applicationModel.getModuleModels()) {
                        ModuleDeployer deployer = module.getDeployer();
                        if (deployer.isFailed() && deployer.getError() != null) {
                            error = deployer.getError();
                            errorModule = module;
                            break;
                        }
                    }
                    onFailed(getIdentifier() + " found failed module: " + errorModule.getDesc(), error);
                    break;
                case PENDING: