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/settings/webhooks-manager.tsx

@@ -2,6 +2,7 @@
 
 import { useState } from "react";
 import Link from "next/link";
+import { useTranslations } from "next-intl";
 import { toast } from "sonner";
 import { ChevronDown, ChevronUp, RotateCcw } from "lucide-react";
 import { Button } from "@/components/ui/button";
@@ -65,6 +66,7 @@ function formatDateTime(iso: string) {
 }
 
 export function WebhooksManager({ initialWebhooks }: { initialWebhooks: Webhook[] }) {
+  const t = useTranslations("settingsForm");
   const [webhookList, setWebhookList] = useState<Webhook[]>(initialWebhooks);
   const [url, setUrl] = useState("");
   const [selectedEvents, setSelectedEvents] = useState<WebhookEventType[]>([]);
@@ -94,7 +96,7 @@ export function WebhooksManager({ initialWebhooks }: { initialWebhooks: Webhook[
       });
       if (!res.ok) {
         const data = await res.json() as { error?: string };
-        throw new Error(data.error ?? "Failed to create webhook");
+        throw new Error(data.error ?? t("webhookCreateFailed"));
       }
       const data = await res.json() as CreateWebhookResponse;
       setNewSecret({ id: data.id, secret: data.secret });
@@ -105,7 +107,7 @@ export function WebhooksManager({ initialWebhooks }: { initialWebhooks: Webhook[
       setUrl("");
       setSelectedEvents([]);
     } catch (err) {
-      toast.error(err instanceof Error ? err.message : "Failed to create webhook");
+      toast.error(err instanceof Error ? err.message : t("webhookCreateFailed"));
     } finally {
       setCreating(false);
     }
@@ -116,12 +118,12 @@ export function WebhooksManager({ initialWebhooks }: { initialWebhooks: Webhook[
       const res = await fetch(`/api/v1/webhooks/${id}`, { method: "DELETE" });
       if (!res.ok && res.status !== 204) {
         const data = await res.json() as { error?: string };
-        throw new Error(data.error ?? "Failed to delete webhook");
+        throw new Error(data.error ?? t("webhookDeleteFailed"));
       }
       setWebhookList((prev) => prev.filter((w) => w.id !== id));
       if (newSecret?.id === id) setNewSecret(null);
     } catch (err) {
-      toast.error(err instanceof Error ? err.message : "Failed to delete webhook");
+      toast.error(err instanceof Error ? err.message : t("webhookDeleteFailed"));
     }
   }
 
@@ -134,13 +136,13 @@ export function WebhooksManager({ initialWebhooks }: { initialWebhooks: Webhook[
       });
       if (!res.ok) {
         const data = await res.json() as { error?: string };
-        throw new Error(data.error ?? "Failed to update webhook");
+        throw new Error(data.error ?? t("webhookUpdateFailed"));
       }
       setWebhookList((prev) =>
         prev.map((w) => (w.id === id ? { ...w, active: !currentActive } : w))
       );
     } catch (err) {
-      toast.error(err instanceof Error ? err.message : "Failed to update webhook");
+      toast.error(err instanceof Error ? err.message : t("webhookUpdateFailed"));
     }
   }
 
@@ -151,7 +153,7 @@ export function WebhooksManager({ initialWebhooks }: { initialWebhooks: Webhook[
       setCopied(true);
       setTimeout(() => setCopied(false), 2000);
     } catch {
-      toast.error("Failed to copy to clipboard");
+      toast.error(t("copyFailed"));
     }
   }
 
@@ -186,9 +188,9 @@ export function WebhooksManager({ initialWebhooks }: { initialWebhooks: Webhook[
         body: JSON.stringify({ deliveryId }),
       });
       if (res.ok) {
-        toast.success("Redelivery queued");
+        toast.success(t("redeliverySuccess"));
       } else {
-        toast.error("Failed to redeliver");
+        toast.error(t("redeliveryFailed"));
       }
     } finally {
       setRedelivering(null);
@@ -210,7 +212,7 @@ export function WebhooksManager({ initialWebhooks }: { initialWebhooks: Webhook[
           <Input
             id="webhook-url"
             type="url"
-            placeholder="https://example.com/webhook"
+            placeholder={t("webhookUrlPlaceholder")}
             value={url}
             onChange={(e) => setUrl(e.target.value)}
             maxLength={2048}
@@ -242,7 +244,7 @@ export function WebhooksManager({ initialWebhooks }: { initialWebhooks: Webhook[
         </div>
 
         <Button type="submit" disabled={creating || !url.trim()}>
-          {creating ? "Adding…" : "Add webhook"}
+          {creating ? t("webhookAdding") : t("webhookAddButton")}
         </Button>
       </form>