fly wireguard create - non informative error message and sparse docs

[dyasny]

Please only report specific issues with flyctl behavior. Anything like a support request for your application should go to https://community.fly.io. More people watch that space and can help you faster!

Describe the bug
Briefly, describe what broke and provide the following details:

• Run fly wireguard create : everything works as expected, great. But there's a warning about the interactive run of this command filtering our self records in DNS, so let's try and create a non-interactive WG config.

• Look at the help for flyctl, both in cli and online, seems simple - fly wireguard create [org] [region] [name] [file] [flags] no further explanations. No examples.

• Give the command a try: flyctl wireguard create Personal yyz dy /tmp/mywg.conf and see a great error message: Error: Could not find

I eventually managed to get it working, but for a new user this looks like the error output is missing (could not find WHAT?)
Trying to go to the docs provides the same as with the --help output, so the docs might as well not exist.

• Operating system
• fly version

$ fly version
flyctl v0.2.22 linux/amd64 Commit: e3d9dcd3b481f07c08ec511a600db40f5820f920 BuildDate: 2024-03-18T20:13:16Z

** Paste your fly.toml

# paste your config file here

** Command output: **

 $ fly wireguard create --help
Add a WireGuard peer connection to an organization

Usage:
  flyctl wireguard create [org] [region] [name] [file] [flags]

Flags:
  -h, --help   help for create

Global Flags:
  -t, --access-token string   Fly API Access Token
      --debug                 Print additional logs and traces
      --verbose               Verbose output

$ flyctl wireguard create Personal yyz dy /tmp/mywg.conf
Error: Could not find 

$ flyctl wireguard create Personal yyz dy /tmp/mywg.conf --debug --verbose
Error: Could not find 
Stacktrace:
goroutine 1 [running]:
runtime/debug.Stack()
	/opt/hostedtoolcache/go/1.21.7/x64/src/runtime/debug/stack.go:24 +0x5e
github.com/superfly/flyctl/internal/cli.printError(0xc000822dc0, 0xc000db9b3e, 0x1d50bc0?, {0x258fa60, 0xc0000008c0})
	/home/runner/work/flyctl/flyctl/internal/cli/cli.go:162 +0x4db
github.com/superfly/flyctl/internal/cli.Run({0x25ab668?, 0xc0003fba80?}, 0xc000822dc0, {0xc000218010?, 0x8, 0x8})
	/home/runner/work/flyctl/flyctl/internal/cli/cli.go:110 +0x928
main.run()
	/home/runner/work/flyctl/flyctl/main.go:47 +0x156
main.main()
	/home/runner/work/flyctl/flyctl/main.go:26 +0x18