[linkis-engineconn-manager-core]module errorcode optimization and documentation

[binbinCheng]

[linkis-engineconn-manager-core]module errorcode optimization and documentation

Example：

documentation（文档）

Error code optimization（错误码优化）

Classes that need to be optimized（需要优化的类）

class	path
ECMCoreException	org.apache.linkis.ecm.core.exception.ECMCoreException

[github-actions]

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