seokhyeon

### Is there an existing issue for this? - [X] I have searched the existing issues ### Current Behavior  ### Expected Behavior _No response_ ### Steps To Reproduce If...

Refactor/3376 dockerfile optimization

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## Description This PR addresses issue #3376 regarding Dockerfile optimization in the `jkube/quickstarts` project. The changes include setting a clear working directory to improve readability and organization of the Dockerfile....

Docker file optimization

5

### Component quickstarts ### Task description ### Description Set environment variable and don't use it Lack of clear working directory setting: Not setting a clear working directory can reduce readability....