feat: Pass adapter to the wizard

[razor-x]

Summary

The CLI mounts the wizard as seam wizard, owns the login, and owns where files go. It now answers for all three, so the wizard asks rather than working them out for itself.

Two files: createWizardAdapter beside the runWizard that hands it over, and its test. Built on @seamapi/wizard@0.7.0, and on #619, now in main.

The contract

export interface WizardAdapter {
  getAuth: () => Promise[WizardAuth]   // endpoint, apiKey, workspaceId
  config: StorageAdapter               // get/set — preferences the developer chose
  state: StorageAdapter                // get/set — what each project was set up with
}

• getAuth passes on the endpoint and workspace resolveAuth resolved — a flag over the environment over what is stored — and an API key, or nothing. The wizard only ever uses an API key, and only a workspace-scoped one may go in a project's .env, so a personal access token is not passed at all. isApiKey is @seamapi/http's own predicate, the one seam login validates with, so the two cannot disagree about what a token is.
• config and state wrap one JSON file each in the two methods the wizard reads and writes through: wizard.json beside cli.json, in the config and state directories, named off the config's rootPaths where the wizard is mounted.

The store and both paths are parameters with defaults, so a test hands it a memory config and a temp directory — the convention login() uses.

What the wizard does with it

Stored	Handed over	What the developer sees
nothing	apiKey: null	asked how to connect: browser or paste
PAT + workspace	apiKey: null, workspaceId	asked how to connect
API key	apiKey	offered that workspace by name, no browser trip

Once seamapi/wizard#7 lands. Until then the wizard accepts the adapter and does not read it, so this changes nothing for anyone.

Verified

seam login with a stored key, then the adapter built and driven end to end:

auth handed to the wizard: { endpoint: 'https://connect.getseam.com',
                             apiKey: 'seam_apikey1_…', workspaceId: null }
~/.config/seam/wizard.json        ← config.set('sdk', 'python')
~/.local/state/seam/wizard.json   ← state.set('projects.demo-app-…', record)
$ seam wizard --version → runs the mounted wizard

179 tests pass against the published 0.7.0.