CI: fix the tests that keep main red, and ship the wasm as compressed parts (#5926, #5302) (#5941)

* Fix two ui-egui tests broken on main by concurrent landings

- profile_open_tests: #5614 renamed the built-in profile to "(PhotoCraft)" after #5208
  hard-coded "(Photocraft)" in the Use-embedded button label.
- smart_object_curves_preview_keeps_its_size_on_a_reduced_proxy (#5779): the reduced
  square is in the right place, but its corner pixels are 220/255 after the smart
  object's resampling; assert full coverage inside and over half at the corners.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

* Web: ship the wasm as compressed parts behind a boot module (#5302)

The release site held the app's wasm as one file, which sits at the 25 MiB
per-file cap of Cloudflare Pages, so the 24 MiB gate failed unrelated PRs.

packaging/web/package.sh now gzips the wasm and cuts it into parts of at
most 20 MiB under app/, and ships the page of a new crate,
apps/photocraft-web-boot. That module fetches the parts in order, has the
browser inflate them (DecompressionStream) and passes the stream to the
app's own wasm-bindgen loader, so the browser still compiles while it
downloads. A failed download is retried twice, then the page says so.

The check is now that no file in the site is over 24 MiB. trunk build in
apps/photocraft-web and the Docker image still give one .wasm.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

* Web boot: inflate the parts in the module where the browser can't (#5302)

* Tests: the adjustment-layer drag preview test follows #5778 (#5926)

#5778 caps a live adjustment-layer preview by the view's zoom, so at 100 %
the drag shows full resolution even with Low Resolution Previews on. The
test still expected the reduced copy there. It now checks that at 100 % every
column shows by default, and moves the low-res on/off comparison to 50 %,
where the reduced copy is still used: on, the drag shows only the (inverted)
black columns; off, it matches the committed view.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

---------

Co-authored-by: Brandon Thomas <[email protected]>
Co-authored-by: Claude Opus 5.5 <[email protected]>

AGENTS.md

@@ -39,6 +39,7 @@ apps/
   photocraft                 desktop app (eframe/wgpu), TCP control server
   photocraft-cli             headless CLI (convert/info/run/batch/commands/mcp)
   photocraft-web             the same app in the browser (trunk + wasm-bindgen)
+  photocraft-web-boot        starts the packaged browser app from compressed parts of its wasm (no file over a host's size cap)
 xtask/                       cargo xtask layers | wasm | ci | stats | corpus | test-corpus | parity | perf | scorecard
 ```