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/app/print/[id]/page.tsx

@@ -4,6 +4,7 @@ import { auth } from "@/lib/auth/server";
 import { db, recipes, eq, and } from "@epicure/db";
 import { PrintTrigger } from "@/components/recipe/print-trigger";
 import { hasQuantity } from "@/lib/fractions";
+import { getMessages, formatMessage } from "@/lib/i18n/server";
 
 type Params = { params: Promise<{ id: string }> };
 
@@ -12,6 +13,8 @@ export default async function RecipePrintPage({ params }: Params) {
   const session = await auth.api.getSession({ headers: await headers() });
   if (!session) return null;
 
+  const m = getMessages((session.user as { locale?: string }).locale);
+
   const recipe = await db.query.recipes.findFirst({
     where: and(eq(recipes.id, id), eq(recipes.authorId, session.user.id)),
     with: {
@@ -24,19 +27,9 @@ export default async function RecipePrintPage({ params }: Params) {
 
   const totalMins = (recipe.prepMins ?? 0) + (recipe.cookMins ?? 0);
 
-  const DIETARY_LABELS: Record<string, string> = {
-    vegan: "Vegan",
-    vegetarian: "Vegetarian",
-    glutenFree: "Gluten-free",
-    dairyFree: "Dairy-free",
-    nutFree: "Nut-free",
-    halal: "Halal",
-    kosher: "Kosher",
-  };
-
   const activeTags = Object.entries(recipe.dietaryTags ?? {})
     .filter(([, v]) => v)
-    .map(([k]) => DIETARY_LABELS[k])
+    .map(([k]) => m.recipe.dietary[k as keyof typeof m.recipe.dietary])
     .filter(Boolean);
 
   return (
@@ -88,10 +81,10 @@ export default async function RecipePrintPage({ params }: Params) {
         )}
 
         <div className="meta">
-          {recipe.baseServings && <span>Serves {recipe.baseServings}</span>}
-          {recipe.prepMins && <span>Prep {recipe.prepMins} min</span>}
-          {recipe.cookMins && <span>Cook {recipe.cookMins} min</span>}
-          {totalMins > 0 && <span>Total {totalMins} min</span>}
+          {recipe.baseServings && <span>{formatMessage(m.recipe.servings, { count: recipe.baseServings })}</span>}
+          {recipe.prepMins && <span>{formatMessage(m.recipe.prep, { mins: recipe.prepMins })}</span>}
+          {recipe.cookMins && <span>{formatMessage(m.recipe.cook, { mins: recipe.cookMins })}</span>}
+          {totalMins > 0 && <span>{formatMessage(m.recipe.total, { mins: totalMins })}</span>}
           {recipe.difficulty && <span>{recipe.difficulty.charAt(0).toUpperCase() + recipe.difficulty.slice(1)}</span>}
         </div>
 
@@ -105,7 +98,7 @@ export default async function RecipePrintPage({ params }: Params) {
 
         {recipe.ingredients.length > 0 && (
           <>
-            <h2>Ingredients</h2>
+            <h2>{m.recipe.ingredients}</h2>
             <ul className="ingredients">
               {recipe.ingredients.map((ing) => (
                 <li key={ing.id}>
@@ -122,7 +115,7 @@ export default async function RecipePrintPage({ params }: Params) {
 
         {recipe.steps.length > 0 && (
           <>
-            <h2>Instructions</h2>
+            <h2>{m.recipe.instructions}</h2>
             <ol className="steps">
               {recipe.steps.map((step) => (
                 <li key={step.id}>
@@ -137,7 +130,7 @@ export default async function RecipePrintPage({ params }: Params) {
         )}
       </article>
 
-      <footer>Printed from Epicure</footer>
+      <footer>{m.print.footer}</footer>
     </>
   );
 }