feat(i18n): translate hardcoded strings across print, public recipe, and recipe management UI

Wires dozens of components and server pages to next-intl instead of hardcoded
English text, and adds a lightweight getMessages/formatMessage helper for
server components (print pages, public recipe page, cook metadata) since
next-intl/server isn't wired into this app's routing. Backfills missing
en/fr message keys that existing code already referenced but fr.json lacked.

apps/web/components/recipe/photo-uploader.tsx

@@ -1,6 +1,7 @@
 "use client";
 
 import { useState, useRef } from "react";
+import { useTranslations } from "next-intl";
 import { Upload, X, Star } from "lucide-react";
 import { Button } from "@/components/ui/button";
 import { getPublicUrl } from "@/lib/storage";
@@ -20,6 +21,7 @@ export function PhotoUploader({
   photos: PhotoEntry[];
   onChange: (photos: PhotoEntry[]) => void;
 }) {
+  const t = useTranslations("recipeForm");
   const [uploading, setUploading] = useState(false);
   const inputRef = useRef<HTMLInputElement>(null);
 
@@ -72,7 +74,7 @@ export function PhotoUploader({
                 type="button"
                 onClick={() => setCover(photo.key)}
                 className="rounded-full bg-white/20 p-1 hover:bg-white/40 transition-colors"
-                title="Set as cover"
+                title={t("setCover")}
               >
                 <Star className={`h-3 w-3 ${photo.isCover ? "text-yellow-400" : "text-white"}`} />
               </button>
@@ -80,7 +82,7 @@ export function PhotoUploader({
                 type="button"
                 onClick={() => remove(photo.key)}
                 className="rounded-full bg-white/20 p-1 hover:bg-red-500/80 transition-colors"
-                title="Remove"
+                title={t("removePhoto")}
               >
                 <X className="h-3 w-3 text-white" />
               </button>