Three small fork tweaks bundled together; none touch upload flow:
* OIDC: pass `prompt=select_account` so Zitadel always shows its account
picker rather than silently passing through an existing session. Override
with OIDC_PROMPT env var.
* Branding: swap "with binarybeach.io" -> "with BinaryBeach.io" and replace
GitHub light/dark logo imports with our brand mark (works on both themes).
* Session: thread the binarybeachio session-lifecycle convention values
(SESSION_COOKIE_AGE, ADMIN_SESSION_COOKIE_AGE, SESSION_SAVE_EVERY_REQUEST)
through docker-compose.bb-local.yml app-env mixin and document the
cross-fork convention link in BINARYBEACHIO.md.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Patches the plane-backend GitHubOAuthProvider so the /auth/github/*
flow points at our self-hosted Zitadel instance when ZITADEL_DOMAIN
is set, and falls back to vanilla GitHub OAuth when unset (regression-
safe). Touch surface is one backend file plus a cosmetic frontend
label change. Full rationale, configuration steps, refresh procedure,
and AGPL compliance notes in BINARYBEACHIO.md at repo root.
