Revise TypeScript setup instructions and dependencies

[LukeSchlangen]

Updated Node.js and npm version requirements, adjusted project setup instructions, and modified package.json structure.

Might depend on google/adk-js#46

[koverholt]

Thanks for the PR and improvements! Confirming that the tsc config and compilation step are not needed, and the quickstart is a smoother dev experience after removing them.

I tested all steps with adk-js and things are working for me, except I had to use zod@3 since the PR you linked is not yet merged. Using zod@4 results in an error: Unknown name "def" at 'tools[0].function_declarations[0].parameters'.

So this LGTM once that upstream PR is merged in adk-js. (I'll mark this PR as blocked for now)

Also pinging @joefernandez to review the changes since he worked on the original version of this quickstart.

[LukeSchlangen]

What if we remove the explicit zod dependency? That's what we had in the original get-started, so I think it should still work? (Need to test it.)

Then we can do a separate PR for the zod update when that's ready?

[LukeSchlangen]

Tested! It works. I removed Zod 4. I think it's good to merge if that works for you!

[koverholt]

Thanks for the updates. Confirming that I tested the latest version and it works as expected without zod, except for an issue with the model string that I left a comment about. Also left some other comments about potential tweaks.

[koverholt]

And once those comments are addressed, I will pass to @joefernandez for review since this is a heavily visited page / entrypoint.

[koverholt]

Thanks for the updates! There is an issue with the CLA check due to commits from a different GitHub account. Can you rebase to switch authorship of those commits, or otherwise fix the failing CLA check? Might have happened due to misconfigured git config user / email.

https://github.com/google/adk-docs/pull/1196/checks?check_run_id=61911522036

[LukeSchlangen]

I wasn't smart enough to figure out how to do that, so I'll close this one and open a new PR with the correct email: #1201