The warnings added in 6398542 were wrong. UG1, UG2 and LD1 were failing
because this branch predated e17a5dc, not because the behaviour they assert
was missing: merging user/main brought the FilePond upload gate and the
oriented-derivative slide dims, and all three pass with no product change.
Headers now point at e17a5dc for both mechanisms. Also corrects the plan's
.env note — the env layering is intentional (.env global, .env.<ENV> per
environment via the generated remote-*-<env> targets); the actual fault is
just that `-include .env` additionally requires makefile-valid syntax and
line 6 is not, which breaks make in both non-worktree clones.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>