feat: collapse/expand all — toggle icon in ArrayEditor + pricing sections

- ArrayEditor shows ChevronsUpDown toggle when collapsible with 2+ items
- Toggle appears even without label prop (fixes pricing missing icon)
- Pricing: centralized section state with toggle-all button for all 3 sections

src/app/admin/_components/ArrayEditor.tsx

@@ -2,7 +2,7 @@
 
 import { useState, useRef, useCallback, useEffect } from "react";
 import { createPortal } from "react-dom";
-import { Plus, Trash2, GripVertical, ChevronDown } from "lucide-react";
+import { Plus, Trash2, GripVertical, ChevronDown, ChevronsUpDown } from "lucide-react";
 
 interface ArrayEditorProps<T> {
   items: T[];
@@ -293,8 +293,23 @@ export function ArrayEditor<T>({
 
   return (
     <div>
-      {label && (
-        <h3 className="text-sm font-medium text-neutral-300 mb-3">{label}</h3>
+      {(label || (collapsible && items.length > 1)) && (
+        <div className="flex items-center justify-between mb-3">
+          {label ? <h3 className="text-sm font-medium text-neutral-300">{label}</h3> : <div />}
+          {collapsible && items.length > 1 && (() => {
+            const allCollapsed = collapsed.size >= items.length;
+            return (
+              <button
+                type="button"
+                onClick={() => allCollapsed ? setCollapsed(new Set()) : setCollapsed(new Set(items.map((_, i) => i)))}
+                className="rounded p-1 text-neutral-500 hover:text-white transition-colors"
+                title={allCollapsed ? "Развернуть все" : "Свернуть все"}
+              >
+                <ChevronsUpDown size={16} className={`transition-transform duration-200 ${allCollapsed ? "" : "rotate-90"}`} />
+              </button>
+            );
+          })()}
+        </div>
       )}
 
       {addPosition === "top" && (

src/app/admin/pricing/page.tsx

@@ -1,7 +1,7 @@
 "use client";
 
 import { useState } from "react";
-import { ChevronDown } from "lucide-react";
+import { ChevronDown, ChevronsUpDown } from "lucide-react";
 import { SectionEditor } from "../_components/SectionEditor";
 import { InputField, SelectField } from "../_components/FormField";
 import { ArrayEditor } from "../_components/ArrayEditor";
@@ -52,21 +52,21 @@ function PriceField({ label, value, onChange }: { label: string; value: string;
 function CollapsibleSection({
   title,
   count,
-  defaultOpen = true,
+  isOpen,
+  onToggle,
   children,
 }: {
   title: string;
   count?: number;
-  defaultOpen?: boolean;
+  isOpen: boolean;
+  onToggle: () => void;
   children: React.ReactNode;
 }) {
-  const [open, setOpen] = useState(defaultOpen);
-
   return (
     <div className="rounded-xl border border-white/10 bg-neutral-900/30 overflow-hidden">
       <button
         type="button"
-        onClick={() => setOpen(!open)}
+        onClick={onToggle}
         className="flex items-center justify-between w-full px-5 py-3.5 text-left cursor-pointer group hover:bg-white/[0.02] transition-colors"
       >
         <div className="flex items-center gap-2">
@@ -77,12 +77,12 @@ function CollapsibleSection({
         </div>
         <ChevronDown
           size={16}
-          className={`text-neutral-500 transition-transform duration-200 ${open ? "rotate-180" : ""}`}
+          className={`text-neutral-500 transition-transform duration-200 ${isOpen ? "rotate-180" : ""}`}
         />
       </button>
       <div
         className="grid transition-[grid-template-rows] duration-300 ease-out"
-        style={{ gridTemplateRows: open ? "1fr" : "0fr" }}
+        style={{ gridTemplateRows: isOpen ? "1fr" : "0fr" }}
       >
         <div className="overflow-hidden">
           <div className="px-5 pb-5 space-y-4">
@@ -94,12 +94,23 @@ function CollapsibleSection({
   );
 }
 
-export default function PricingEditorPage() {
+function PricingContent({ data, update }: { data: PricingData; update: (d: PricingData) => void }) {
+  const [sections, setSections] = useState({ subscriptions: true, rental: true, rules: false });
+  const allOpen = sections.subscriptions && sections.rental && sections.rules;
+
+  function toggleAll() {
+    const target = !allOpen;
+    setSections({ subscriptions: target, rental: target, rules: target });
+  }
+
+  function toggleSection(key: keyof typeof sections) {
+    setSections(prev => ({ ...prev, [key]: !prev[key] }));
+  }
+
   return (
-    <SectionEditor<PricingData> sectionKey="pricing" title="Цены">
-      {(data, update) => (
     <div className="space-y-4">
-          <div className="grid gap-3 sm:grid-cols-2">
+      <div className="flex items-center justify-between">
+        <div className="grid gap-3 sm:grid-cols-2 flex-1">
           <InputField
             label="Заголовок секции"
             value={data.title}
@@ -111,9 +122,18 @@ export default function PricingEditorPage() {
             onChange={(v) => update({ ...data, subtitle: v })}
           />
         </div>
+        <button
+          type="button"
+          onClick={toggleAll}
+          className="rounded p-1 text-neutral-500 hover:text-white transition-colors ml-3 mt-4"
+          title={allOpen ? "Свернуть все секции" : "Развернуть все секции"}
+        >
+          <ChevronsUpDown size={16} className={`transition-transform duration-200 ${allOpen ? "rotate-90" : ""}`} />
+        </button>
+      </div>
 
       {/* Абонементы */}
-          <CollapsibleSection title="Абонементы" count={data.items.length}>
+      <CollapsibleSection title="Абонементы" count={data.items.length} isOpen={sections.subscriptions} onToggle={() => toggleSection("subscriptions")}>
             {(() => {
               const itemOptions = data.items
                 .map((it, idx) => ({ value: String(idx), label: it.name }))
@@ -196,7 +216,7 @@ export default function PricingEditorPage() {
           </CollapsibleSection>
 
           {/* Аренда */}
-          <CollapsibleSection title="Аренда" count={data.rentalItems.length}>
+          <CollapsibleSection title="Аренда" count={data.rentalItems.length} isOpen={sections.rental} onToggle={() => toggleSection("rental")}>
             <InputField
               label="Заголовок"
               value={data.rentalTitle}
@@ -236,7 +256,7 @@ export default function PricingEditorPage() {
           </CollapsibleSection>
 
           {/* Правила */}
-          <CollapsibleSection title="Правила" count={data.rules.length} defaultOpen={false}>
+          <CollapsibleSection title="Правила" count={data.rules.length} isOpen={sections.rules} onToggle={() => toggleSection("rules")}>
             <ArrayEditor
               items={data.rules}
               onChange={(rules) => update({ ...data, rules })}
@@ -248,7 +268,13 @@ export default function PricingEditorPage() {
             />
           </CollapsibleSection>
         </div>
-      )}
+  );
+}
+
+export default function PricingEditorPage() {
+  return (
+    <SectionEditor<PricingData> sectionKey="pricing" title="Цены">
+      {(data, update) => <PricingContent data={data} update={update} />}
     </SectionEditor>
   );
 }