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/app/api/v1/webhooks/route.ts

@@ -4,17 +4,16 @@ import { z } from "zod";
 import { db, webhooks, eq } from "@epicure/db";
 import { requireSession } from "@/lib/api-auth";
 import { validateWebhookUrl } from "@/lib/validate-webhook-url";
-
-const VALID_EVENTS = ["recipe.created", "recipe.updated", "recipe.published", "recipe.deleted"] as const;
+import { WEBHOOK_EVENTS } from "@/lib/webhooks";
 
 const CreateWebhookBody = z.object({
   url: z.string().min(1).max(2048),
-  events: z.array(z.enum(VALID_EVENTS)).default([]),
+  events: z.array(z.enum(WEBHOOK_EVENTS)).default([]),
 });
 
 const UpdateWebhookBody = z.object({
   url: z.string().min(1).max(2048).optional(),
-  events: z.array(z.enum(VALID_EVENTS)).optional(),
+  events: z.array(z.enum(WEBHOOK_EVENTS)).optional(),
   active: z.boolean().optional(),
 });