The provider step was filtered to API_KEY only, which hid GitHub
Copilot, Google Antigravity, and GPT account from the founding-CEO
runtime picker even though they are first-class providers in the
catalog. Show every non-cloud provider, render an "Access token" field
in place of the API-key field for OAuth and account auths, and surface
a button that opens the provider's official sign-in page via the new
openExternalUrl IPC (validated to http(s) only).
OnboardingService.resolveProvider now accepts any non-cloud auth type.
Cloud providers still route through Settings since their multi-field
config does not fit the linear onboarding step.
ZacharyZhang-NY
e7eb829b48