feat: post-signup onboarding wizard (dietary/allergen prefs, notifications, skippable) (v0.77.0)

New accounts land on a 3-step wizard after signup — welcome, dietary preferences & allergens, notification opt-in — skippable at every step, shown once via a users.onboardingCompletedAt gate in the (app) layout. Existing accounts are backfilled as already-onboarded.

Also gives the allergen-preferences step a real write path: user_allergens previously only had a GDPR-export read.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

apps/web/messages/en.json

@@ -766,7 +766,10 @@
     "surpriseMe": "Surprise me",
     "generatingContent": "Generating recipe content…",
     "decrease": "Decrease",
-    "increase": "Increase"
+    "increase": "Increase",
+    "skip": "Skip",
+    "continue": "Continue",
+    "finish": "Finish"
   },
   "auth": {
     "signIn": "Sign in",
@@ -1642,5 +1645,33 @@
     "previous": "Previous",
     "next": "Next",
     "pageOf": "Page {page} of {total}"
+  },
+  "onboarding": {
+    "stepOf": "Step {step} of {total}",
+    "welcomeTitle": "Welcome to Epicure",
+    "welcomeBody": "A couple of quick questions to tailor recipes and meal plans to you — takes under a minute, and you can skip any step.",
+    "dietaryTitle": "Dietary preferences & allergens",
+    "dietaryBody": "We'll use these to steer AI recipe generation and flag matching recipes — you can always change them later in Settings.",
+    "dietaryTagsLabel": "Diet",
+    "allergensLabel": "Allergens to avoid",
+    "dietVegan": "Vegan",
+    "dietVegetarian": "Vegetarian",
+    "dietGlutenFree": "Gluten-free",
+    "dietDairyFree": "Dairy-free",
+    "dietNutFree": "Nut-free",
+    "dietHalal": "Halal",
+    "dietKosher": "Kosher",
+    "allergenPeanuts": "Peanuts",
+    "allergenTreeNuts": "Tree nuts",
+    "allergenDairy": "Dairy",
+    "allergenEggs": "Eggs",
+    "allergenShellfish": "Shellfish",
+    "allergenFish": "Fish",
+    "allergenSoy": "Soy",
+    "allergenGluten": "Gluten",
+    "notificationsTitle": "Stay in the loop",
+    "notificationsBody": "Get notified about comments, follows, and shopping list reminders. You can fine-tune categories anytime in Settings → Notifications.",
+    "finishFailed": "Something went wrong — you can finish setup later from Settings",
+    "goToRecipes": "Go to recipes"
   }
 }

apps/web/messages/fr.json

@@ -766,7 +766,10 @@
     "surpriseMe": "Surprends-moi",
     "generatingContent": "Génération du contenu de la recette…",
     "decrease": "Diminuer",
-    "increase": "Augmenter"
+    "increase": "Augmenter",
+    "skip": "Passer",
+    "continue": "Continuer",
+    "finish": "Terminer"
   },
   "auth": {
     "signIn": "Se connecter",
@@ -1633,5 +1636,33 @@
     "previous": "Précédent",
     "next": "Suivant",
     "pageOf": "Page {page} sur {total}"
+  },
+  "onboarding": {
+    "stepOf": "Étape {step} sur {total}",
+    "welcomeTitle": "Bienvenue sur Epicure",
+    "welcomeBody": "Quelques questions rapides pour adapter les recettes et les plans de repas à vos besoins — moins d'une minute, et chaque étape peut être passée.",
+    "dietaryTitle": "Préférences alimentaires & allergènes",
+    "dietaryBody": "Nous les utiliserons pour orienter la génération de recettes par l'IA et repérer les recettes correspondantes — vous pourrez toujours les modifier plus tard dans les Réglages.",
+    "dietaryTagsLabel": "Régime",
+    "allergensLabel": "Allergènes à éviter",
+    "dietVegan": "Végan",
+    "dietVegetarian": "Végétarien",
+    "dietGlutenFree": "Sans gluten",
+    "dietDairyFree": "Sans lactose",
+    "dietNutFree": "Sans fruits à coque",
+    "dietHalal": "Halal",
+    "dietKosher": "Kasher",
+    "allergenPeanuts": "Arachides",
+    "allergenTreeNuts": "Fruits à coque",
+    "allergenDairy": "Produits laitiers",
+    "allergenEggs": "Œufs",
+    "allergenShellfish": "Crustacés",
+    "allergenFish": "Poisson",
+    "allergenSoy": "Soja",
+    "allergenGluten": "Gluten",
+    "notificationsTitle": "Restez informé",
+    "notificationsBody": "Recevez des notifications pour les commentaires, les abonnements et les rappels de liste de courses. Vous pourrez affiner les catégories à tout moment dans Réglages → Notifications.",
+    "finishFailed": "Une erreur est survenue — vous pourrez terminer la configuration plus tard dans les Réglages",
+    "goToRecipes": "Aller aux recettes"
   }
 }