fix: standardize locked-vs-hidden treatment across all 9 per-tier gated features (v0.79.0)

Rule, applied consistently everywhere via a new isFeatureAvailableAnyTier() helper: if a feature is enabled on at least one tier, it stays visible for locked-out viewers with a small "Pro" badge and opens an upgrade prompt on click; if a feature is disabled on every tier, it hides entirely, since there's no upgrade path to point at.

Covers: recipe variations, meal/drink pairings, nutrition estimation, Markdown export (5 call sites), weekly nutrition, import from URL, import from photo, and the Instacart grocery-delivery menu item. Previously inconsistent — some hid outright, one showed a lock icon overlapping its own icon.

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

apps/web/components/recipe/meal-pairing-button.tsx

@@ -4,8 +4,9 @@ import { useState } from "react";
 import { useTranslations } from "next-intl";
 import { useRouter } from "next/navigation";
 import { FakeProgressBar } from "@/components/ui/fake-progress-bar";
-import { UtensilsCrossed, Sparkles, Loader2, ChefHat, Salad, Wine, Cake, Sandwich, Soup, Check, Lock } from "lucide-react";
+import { UtensilsCrossed, Sparkles, Loader2, ChefHat, Salad, Wine, Cake, Sandwich, Soup, Check } from "lucide-react";
 import { UpgradeDialog } from "@/components/premium/upgrade-dialog";
+import { ProBadge } from "@/components/premium/pro-badge";
 import { toast } from "sonner";
 import { Button } from "@/components/ui/button";
 import { Tooltip, TooltipContent, TooltipProvider, TooltipTrigger } from "@/components/ui/tooltip";
@@ -152,13 +153,14 @@ export function MealPairingButton({ recipeId, locked = false }: { recipeId: stri
                 if (pairings.length === 0) suggest();
               }}
               aria-label={t("pairMealTooltip")}
-              className="relative"
             >
               <UtensilsCrossed className="h-4 w-4" />
-              {locked && <Lock className="h-2.5 w-2.5 absolute bottom-1 right-1 text-muted-foreground" />}
             </Button>
           } />
-          <TooltipContent>{t("pairMealTooltip")}</TooltipContent>
+          <TooltipContent className="flex items-center gap-1.5">
+            {t("pairMealTooltip")}
+            {locked && <ProBadge />}
+          </TooltipContent>
         </Tooltip>
       </TooltipProvider>