chore: make package.json scripts compatible with npm

[Its-Just-Nans]

It's more common to use npm in npm script than node or bun
Allowing compatibility between them

[Copilot]

Pull Request Overview

Updates the build script in package.json to use npm instead of bun for improved compatibility across different package managers.

• Replaces bun run with npm run in the build script command
• Maintains the same functionality while ensuring compatibility with npm-based workflows

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