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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
* by default is true.
     */
    private boolean isRegisterConsumerInstance() {
        Boolean registerConsumer = getApplication().getRegisterConsumer();
        if (registerConsumer == null) {
            return true;
        }
        return Boolean.TRUE.equals(registerConsumer);
    }
    @Override
    public ReferenceCache getReferenceCache() {
        return referenceCache;
    }
    /**
     * Initialize
     */
    @Override
    public void initialize() {
        if (initialized) {
            return;
        }
        
        synchronized (startLock) {
            if (initialized) {
                return;
            }
            
            registerShutdownHook();
            startConfigCenter();
            loadApplicationConfigs();