feat: ingredient/tag search on My Recipes, QR code on printed recipes

My Recipes search previously only matched title/description; now also
matches ingredient rawName and tags, mirroring the public search
improvement from earlier. Hit and fixed a real bug along the way:
embedding drizzle column proxies from a foreign table inside a raw
sql`` fragment passed to db.query.recipes.findMany's `where` gets
rewritten to the wrong table alias by the relational query builder,
producing broken SQL — worked fine in the plain query builder used by
/api/v1/search, but not here. Fixed by using literal SQL identifiers
for the ingredients subquery instead of column proxies.

Recipe print pages get the same QR-code treatment shopping lists got
earlier, gated on visibility !== "private" (both public and unlisted
resolve at /r/[id]).

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

apps/web/messages/fr.json

@@ -65,6 +65,8 @@
     "shareCopyFailed": "Échec de la copie du lien",
     "shareNotPublicNotice": "Ce lien ne fonctionnera qu'une fois la recette définie sur Public — lien copié quand même.",
     "print": "Imprimer",
+    "qrCodeAlt": "Code QR menant à cette recette",
+    "qrCodeCaption": "Scannez pour voir en ligne",
     "ingredients": "Ingrédients",
     "instructions": "Instructions",
     "photos": "Photos",