test(post): retract the "these specs are red" notes — the merge fixed them

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>

tests/ui/post/lightbox-dims.spec.js

@@ -3,19 +3,15 @@
 // browser actually renders for the linked image (BUG 2026-07-09: portrait
 // iPhone JPEGs squeezed to landscape in the fullscreen lightbox).
 //
-// Root cause: entry-journal.html.twig feeds `img.width`/`img.height` (raw
+// Root cause: entry-journal.html.twig fed `img.width`/`img.height` (raw
 // getimagesize() of the ORIGINAL file — EXIF orientation ignored) into
-// data-pswp-*, while the slide href points at that original, which browsers
-// display EXIF-rotated. For a stored-landscape portrait photo the attrs say
-// landscape while the pixels render portrait → PhotoSwipe squeezes them.
+// data-pswp-*, while the slide href pointed at that original, which browsers
+// display EXIF-rotated. For a stored-landscape portrait photo the attrs said
+// landscape while the pixels rendered portrait → PhotoSwipe squeezed them.
 //
-// ⚠️ THIS SPEC CURRENTLY FAILS — the root cause above is still live.
-// entry-journal.html.twig:48-49 remains `{{ img.width }}` / `{{ img.height }}`,
-// so the fixture (stored 800x600, EXIF Orientation=6) reports 800 while the
-// browser renders 600. Fixing it means sourcing the dimensions from a medium
-// Grav has already oriented rather than the raw original — which cannot be
-// verified locally, since the dev container has no php-exif and so never
-// applies auto_fix_orientation. Left failing so the squeeze stays visible.
+// Fixed in e17a5dc: slides now link a 2000px fit-within derivative and measure
+// THAT file, and derivatives are re-encoded upright, so the attrs and the
+// rendered pixels agree.
 //
 // The invariant tested here is environment-proof: whatever file the slide
 // links to, its browser-rendered natural size must equal the data-pswp-*