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/en.json

@@ -65,6 +65,8 @@
     "shareCopyFailed": "Failed to copy link",
     "shareNotPublicNotice": "This link will only work once the recipe is set to Public — link copied anyway.",
     "print": "Print",
+    "qrCodeAlt": "QR code linking to this recipe",
+    "qrCodeCaption": "Scan to view online",
     "ingredients": "Ingredients",
     "instructions": "Instructions",
     "photos": "Photos",