fix: unlisted-recipe share link wrongly warned it wouldn't work (v0.28.3)

The public /r/{id} route allows any visibility except "private", so
unlisted links always worked — the copy-link toast just checked for
visibility === "public" instead of !== "private", flagging unlisted
recipes as broken when they weren't.

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

apps/web/components/recipe/share-recipe-button.tsx

@@ -17,10 +17,10 @@ export function ShareRecipeButton({ recipeId, visibility }: { recipeId: string;
       toast.error(t("shareCopyFailed"));
       return;
     }
-    if (visibility === "public") {
-      toast.success(t("shareLinkCopied"));
-    } else {
+    if (visibility === "private") {
       toast.info(t("shareNotPublicNotice"));
+    } else {
+      toast.success(t("shareLinkCopied"));
     }
   }