space register and authorize need testing

[travis]

Per #60 (comment) it would be good to have tests for space register. It would also be nice to test authorize.

Both of these commands interact with real services, and space register in particular can't execute if the test agent doesn't have any proofs.

I've pushed a branch with the beginnings of a test for these flows:

https://github.com/web3-storage/w3cli/tree/feat/register-space-testing
0a39f58

but figuring out the right way to test these commands that depend on remote services is a bit of a project.

[gobengo]

bengo@bengo ~/protocol.ai/w3protocol/packages/access-api ⚡  w3 authorize [email protected]
file:///Users/bengo/.nvm/versions/node/v18.10.0/lib/node_modules/@web3-storage/w3cli/node_modules/@ucanto/principal/src/signer.js:47
    if (archive.id.startsWith('did:key:')) {
                   ^

TypeError: Cannot read properties of undefined (reading 'startsWith')
    at Importer.from (file:///Users/bengo/.nvm/versions/node/v18.10.0/lib/node_modules/@web3-storage/w3cli/node_modules/@ucanto/principal/src/signer.js:47:20)
    at AgentData.fromExport (file:///Users/bengo/.nvm/versions/node/v18.10.0/lib/node_modules/@web3-storage/w3cli/node_modules/@web3-storage/access/src/agent-data.js:79:27)
    at create (file:///Users/bengo/.nvm/versions/node/v18.10.0/lib/node_modules/@web3-storage/w3cli/node_modules/@web3-storage/w3up-client/src/index.node.js:27:40)
    at async authorize (file:///Users/bengo/.nvm/versions/node/v18.10.0/lib/node_modules/@web3-storage/w3cli/index.js:20:18)

Node.js v18.10.0
bengo@bengo ~/protocol.ai/w3protocol/packages/access-api ⚡      

I'm assuming this is because I have stored state from very old verisons?
I'm willing to fully reset since this is beta. what would I do to reset my store?