feat: add bulk "add to collection" action on recipes page

Select recipes → add to an existing collection or create a new one inline. Fixes duplicate "visibility" i18n key bug found during verification.

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

apps/web/messages/en.json

@@ -121,6 +121,14 @@
     "viewList": "List view",
     "viewCompact": "Compact view",
     "updatedLabel": "Updated {date}",
+    "addToCollection": "Add to collection",
+    "addToCollectionTitle": "Add {count, plural, one {1 recipe} other {{count} recipes}} to a collection",
+    "newCollectionOption": "New collection…",
+    "newCollectionNamePlaceholder": "Collection name",
+    "addToCollectionSuccess": "{count, plural, one {1 recipe} other {{count} recipes}} added to \"{name}\"",
+    "addToCollectionFailed": "Failed to add to collection",
+    "createCollectionFailed": "Failed to create collection",
+    "noCollectionsYet": "You don't have any collections yet.",
     "versionHistoryTitle": "Version History",
     "versionsLoading": "Loading versions...",
     "versionsEmpty": "No versions yet. Versions are saved automatically when you edit this recipe.",

apps/web/messages/fr.json

@@ -121,6 +121,14 @@
     "viewList": "Vue liste",
     "viewCompact": "Vue compacte",
     "updatedLabel": "Mis à jour le {date}",
+    "addToCollection": "Ajouter à une collection",
+    "addToCollectionTitle": "Ajouter {count, plural, one {1 recette} other {{count} recettes}} à une collection",
+    "newCollectionOption": "Nouvelle collection…",
+    "newCollectionNamePlaceholder": "Nom de la collection",
+    "addToCollectionSuccess": "{count, plural, one {1 recette} other {{count} recettes}} ajoutée(s) à « {name} »",
+    "addToCollectionFailed": "Échec de l'ajout à la collection",
+    "createCollectionFailed": "Échec de la création de la collection",
+    "noCollectionsYet": "Vous n'avez pas encore de collection.",
     "versionHistoryTitle": "Historique des versions",
     "versionsLoading": "Chargement des versions...",
     "versionsEmpty": "Aucune version pour l'instant. Les versions sont enregistrées automatiquement lorsque vous modifiez cette recette.",