Enhance: comportable pnpm zip

[Jonghakseo]

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Priority*

• High: This PR needs to be merged first, before other tasks.
• Medium: This PR should be merged quickly to prevent conflicts due to common changes. (default)
• Low: This PR does not affect other tasks, so it can be merged later.

Purpose of the PR*

Inspired by #805, When pnpm zip runs, it excludes the dist-zip folder from the clean target to leave the existing zip version, and reveals the time of the compression in the filename.

Changes*

1. exclude dist-zip from clean:bundle.
2. specify compression time in compressed filename.
3. update README.md

How to check the feature

Reference