cli migrate-tenants support for wrangler.jsonc

[fl0wo]

Hi, would be cool to not have the cli forced to work on wrangler.toml file, but ideally to be able to provide where's the file, and if not provided, defaults to toml with json/jsonc fallback.

I got an error thrown from this line:
https://github.com/zpg6/better-auth-cloudflare/blob/a8957af938cabe80b2db85531edcfa798087ec94/cli/src/commands/migrate-tenants.ts#L370C45-L370C58

┌  Better Auth Cloudflare vunknown · migrate:tenants
│
└  No wrangler.toml found. Please run this command from a Cloudflare Workers project directory.

Current workaround:
I'm maintaining in sync two files wrangler.jsonc (with the syntax i like for my project) and wrangler.toml (rappresenting exactly the .jsonc version, so that migrate:tenants works)

[zpg6]

@fl0wo - great point! The CLI is quite tied to toml at the moment. Instead of toml operations, we should be reading and writing the wrangler data structure to whichever is the users preferred format.

Suggest for now to use toml only