Interactive account picker menu with dev+deploy commands

[Macil]

No description provided.

[greptile-apps]

Greptile Summary

The PR replaces account-registration links in deploy and dev with an interactive picker that can associate an existing compatible account, open a scope-upgrade flow, or start new-account setup. Reviewers should focus on the picker’s asynchronous recovery behavior and its integration with deployment polling and Ink lifecycle.

• Adds a typed backend operation for associating an account with a deployment and includes compatible-account changes in deployment equality checks.
• Introduces an @inkjs/ui Select shared by deploy and dev, with account filtering, display labels, setup-link launching, and association status/error rendering.
• Makes deploy UI unmounting await Ink shutdown and distinguishes programmatic unmounts from user-triggered exits.
• Updates Deno dependency metadata for the new terminal selection component.

Confidence Score: 3/5

The PR should not merge until both account-picker failure paths allow users to retry setup and association actions.

Browser-launch errors permanently disable the picker, while failed association requests silently suppress retries of the same account, leaving pending deployments blocked or requiring a command restart.

Files Needing Attention: ui/common.tsx

Important Files Changed

Filename	Overview
ui/common.tsx	Adds the shared interactive account picker, but both browser-launch and association failures can leave users unable to retry the intended action.
backend.ts	Adds the authenticated account-association request and makes deployment polling observe compatible-account changes.
commands/deploy.ts	Awaits Ink unmount completion and exits only when the renderer shuts itself down.
ui/deploy.tsx	Mounts the account picker beneath deployment progress while registration authentication is pending.
ui/dev.tsx	Mounts the same picker in the development deployment-readiness screen.
deno.json	Adds the Ink UI package used by the new Select component.
deno.lock	Locks @inkjs/ui and its transitive terminal-rendering dependencies.

_{Reviews (1): Last reviewed commit: "put padding above account picker" | Re-trigger Greptile}