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/recipes/[id]/versions/[versionId]/route.ts

@@ -55,41 +55,6 @@ export async function POST(req: NextRequest, { params }: Params) {
   });
   if (!snapshot) return NextResponse.json({ error: "Snapshot not found" }, { status: 404 });
 
-  // Create a snapshot of the current state before restoring
-  const [maxVersionRow] = await db
-    .select({ v: max(recipeSnapshots.version) })
-    .from(recipeSnapshots)
-    .where(eq(recipeSnapshots.recipeId, id));
-  const nextVersion = (maxVersionRow?.v ?? 0) + 1;
-  await db.insert(recipeSnapshots).values({
-    id: crypto.randomUUID(),
-    recipeId: id,
-    authorId: session!.user.id,
-    version: nextVersion,
-    title: currentRecipe.title,
-    snapshotData: {
-      title: currentRecipe.title,
-      description: currentRecipe.description,
-      baseServings: currentRecipe.baseServings,
-      difficulty: currentRecipe.difficulty,
-      prepMins: currentRecipe.prepMins,
-      cookMins: currentRecipe.cookMins,
-      dietaryTags: currentRecipe.dietaryTags ?? {},
-      ingredients: currentRecipe.ingredients.map((i) => ({
-        rawName: i.rawName,
-        quantity: i.quantity,
-        unit: i.unit,
-        note: i.note,
-        order: i.order,
-      })),
-      steps: currentRecipe.steps.map((s) => ({
-        instruction: s.instruction,
-        timerSeconds: s.timerSeconds,
-        order: s.order,
-      })),
-    },
-  });
-
   // Restore the recipe from the snapshot
   const data = snapshot.snapshotData as {
     title: string;