fix: audit fixes — tier-quota bypass, webhook SSRF, auth hardening, pagination, a11y

Full audit (bugs/UI-UX/backend/feature-gap) turned up a money-leak AI quota
bypass, webhook SSRF, and a long tail of missing pagination/auth/a11y work.
Fixes land together since HANDOFF.md tracked them as one backlog.

- AI routes charge tier quota before generating; nutrition POST is author-only
- Webhook dispatch re-validates URL per delivery (SSRF/DNS-rebinding), treats
  redirects as failures; recipe.published now actually dispatches
- New indexes/unique constraints on recipes, meal-planning, comments FK cascade
- Recipe PUT/restore snapshot only inside the transaction, after validation
- Recipe DELETE cleans up S3 objects (recipe + review photos)
- Optimistic UI (favorite/star/follow/shopping-list) rolls back on failure
- Upload presign enforces file size cap + per-tier storage quota
- Route-level loading/error/not-found states across (app), admin, and root
- middleware.ts guards (app)/admin; requireAdmin checks DB role, not cached
  session; rate limiting applied to both session and API-key branches,
  bucketed per key; Stripe webhook dedupes by event id
- Pagination added to recipes, feed, profile, comments, pantry, admin tables
- Nav shows real avatar + profile link + dark-mode toggle; destructive actions
  standardized on AlertDialog
- Unsaved-changes guard + real ingredient/step validation on recipe form;
  canonical /recipes/[id] used in-app; next/image migration; aria-labels and
  alt text across icon buttons, avatars, recipe photos
- packages/api-types removed (zero callers, too drifted to safely rewire);
  openapi.ts and ai-keys error shape drift fixed; BYOK decrypt failures now
  surface instead of silently falling back to the platform key

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

apps/web/components/recipe/recipe-card.tsx

@@ -1,6 +1,7 @@
 "use client";
 
 import Link from "next/link";
+import Image from "next/image";
 import { useTranslations } from "next-intl";
 import { Clock, Users, Lock, Globe, Link2 } from "lucide-react";
 import { Badge } from "@/components/ui/badge";
@@ -42,11 +43,13 @@ export function RecipeCard({ recipe }: { recipe: Recipe }) {
     <Link href={`/recipes/${recipe.id}`}>
       <Card className="group overflow-hidden hover:shadow-md transition-shadow h-full flex flex-col">
         {cover ? (
-          <div className="aspect-video overflow-hidden bg-muted">
-            <img
+          <div className="relative aspect-video overflow-hidden bg-muted">
+            <Image
               src={getPublicUrl(cover.storageKey)}
               alt={recipe.title}
-              className="w-full h-full object-cover group-hover:scale-105 transition-transform duration-300"
+              fill
+              sizes="(max-width: 640px) 100vw, (max-width: 1024px) 50vw, 25vw"
+              className="object-cover group-hover:scale-105 transition-transform duration-300"
             />
           </div>
         ) : (