The frontend is documented as a single image whose AUTH_MODE env var
selects local vs Clerk auth per deployment (docs/clerk.md). But the root
layout and /login read AUTH_MODE during render with no request-time
signal, so Next 16 statically prerendered them at build time in the
build host's mode (local). The deployed image then served the local
login form forever, ignoring AUTH_MODE=clerk at runtime — ClerkProvider
and <SignIn/> never appeared.
Add `await connection()` (the v16 way to read env at request time) in
the layout's IdentityProvider and in /login so both render per-request
and honor the runtime AUTH_MODE.
Also add a root .dockerignore: the repo had none, so every image build
shipped the 67GB Rust target/ dir as build context.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
