tasks

Wire Google Workspace OAuth as a Third Identity Provider

Env scaffolding for Google OAuth was added (uncommitted .env.example diff + real credentials in .env), but the code wiring was never written. This task implements the routes, session-payload union widening, header tooltip row, login button, and roster matching to bring Google to parity with the GitHub + LinkedIn providers — highest-leverage move before the May 27 All-Hands since most VC attendees convert better on Workspace than on either existing provider.