feat(recipes): client-side image editor + modernize /add to match /edit

Add a from-scratch photo editor (crop, max-resolution scale-to-fit,
WebP quality with live final-size + dimensions readout) that opens on
image pick in the recipe add/edit flow. Conversion uses the browser's
canvas WebP encoder (sharp can't run client-side); crop, scale and the
size readout are built by hand.

Server now stores the client WebP full image byte-for-byte (passthrough)
so the on-disk file matches the user's chosen quality/size; sharp still
derives the 800px thumb and OKLAB colour. Non-WebP uploads keep the old
q90 re-encode fallback.

Rework /add to reuse EditTitleImgParallax (parallax hero +
titleExtras/below-hero layout, shape-tile Backform, SaveFab + optional
translation), replacing the antiquated CardAdd card. Move the edit/remove
image controls into the hero, below the fixed header. Delete now-dead
CardAdd and RecipeEditor.

package.json

@@ -1,6 +1,6 @@
 {
 	"name": "homepage",
-	"version": "1.94.1",
+	"version": "1.95.0",
 	"private": true,
 	"type": "module",
 	"scripts": {