codemod at least has a typo, and maybe other problems

[Vandivier]

What is the problem?

when i run npx @blitzjs/codemod upgrade-legacy as instructed in https://blitzjs.com/docs/upgrading-from-framework, I see an error:
App directory doesn't exit

On inspection, this is a typo which should read
App directory doesn't exist

A deeper issue, though, is that I don't expect the app dir to pre-exist. I'm expecting the code mod to create it, because I am expecting this upgrade to move from pages dir to app dir along with the rest of the upgrade.

Paste all your error logs here:

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Paste all relevant code snippets here:

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What are detailed steps to reproduce this?

Run blitz -v and paste the output here:

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Please include below any other applicable logs and screenshots that show your problem:

No response

[Vandivier]

some other problems:

1. if i have next.config.js instead of blitz.config.js the codemod unnecessarily errors
2. it errors if i don't have an app dir. maybe this is proper? but can it just make an app dir?
3. it errors after inserting import { withBlitz } from "app/blitz-client"; blindly, if it was already in the file under insertion; instead, the mod should check ahead of time and only insert if needed

[Vandivier]

error for 3 above:

[Vandivier]

i fixed the above manually, now i got this:

[Vandivier]

ran at ref Vandivier/ladderly-3#220