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- [ ] 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
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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
executeShutdownCallbacks();
                
                
                
                
                
                destroyExecutorRepository();
                onStopped();
            } catch (Throwable ex) {
                String msg = getIdentifier() + " an error occurred while stopping application: " + ex.getMessage();
                onFailed(msg, ex);
            }
        }
    }
    private void executeShutdownCallbacks() {
        ShutdownHookCallbacks shutdownHookCallbacks = applicationModel.getBeanFactory().getBean(ShutdownHookCallbacks.class);
        shutdownHookCallbacks.callback();
    }
    @Override
    public void notifyModuleChanged(ModuleModel moduleModel, DeployState state) {
        checkState(moduleModel, state);
        
        synchronized (stateLock) {
            stateLock.notifyAll();
        }
    }
    @Override
    public void checkState(ModuleModel moduleModel, DeployState moduleState) {
        synchronized (stateLock) {
            if (!moduleModel.isInternal() && moduleState == DeployState.STARTED) {