Release the package on npmjs.com

[t-kikuc]

What you want?:

as title

we need:

• Init npmjs for pipe-cd
• Push in the GHA

Note: This task should be handled by maintainers because it requires initializing in npmjs.

Why is it needed? / Without it, what's the problem?:

To remove the troublesome installation step of PAT and .npmrc.

https://github.com/pipe-cd/docs-mcp-server/?tab=readme-ov-file#prerequisites

After this improvement, users can install by only one click via the cursor deeplink .

[t-kikuc]

WIP: c821590