feat(admin): make all sortable/repeater cards collapsible, collapsed by default

- Add useCollapsibleItems: key-based open state, clickable/keyboard head, aria-expanded
- sortable items with sub-fields and every inline repeater/group row now collapse
- Repeater head summary falls back to the first filled field when no listPreview
- Drop per-schema collapsible/defaultCollapsed for repeater groups (JS + PHP)
- Align FloatBtnItemPanel head with the shared collapse attrs

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

tests/widget-system/vip-settings-structured-contract.test.cjs

@@ -143,12 +143,11 @@ test('等级 Tab 标题由显示名称动态驱动', () => {
   assert.match(rendererVue, /:name="tabName\(tab\)"/);
   assert.match(rendererVue, /:tab="tabName\(tab\)"/);
   assert.match(rendererVue, /function tabName\(tab\) \{[\s\S]*?tab\.titleKey[\s\S]*?tab\.titleFallback/);
-  // 手风琴：默认收起，点击标题行展开。
-  assert.match(fieldVue, /const repeaterCollapsible = computed\(\(\) => !!props\.schema\.collapsible\)/);
-  assert.match(fieldVue, /const repeaterDefaultOpen = computed\(\(\) => props\.schema\.defaultCollapsed === false\)/);
-  assert.match(fieldVue, /function toggleRepeaterItem\(index\)/);
-  assert.match(fieldVue, /v-show="!repeaterCollapsible \|\| isRepeaterItemOpen\(index\)"/);
+  // 手风琴：所有 repeater/group 行默认收起，点击标题行展开（按行 key 记录开合）。
+  assert.match(fieldVue, /useCollapsibleItems\(\)/);
+  assert.match(fieldVue, /v-show="isRepeaterItemOpen\(repeaterDragKey\(element\)\)"/);
   assert.match(fieldVue, /aksrt-field__repeater-summary/);
+  assert.doesNotMatch(fieldVue, /schema\.collapsible|schema\.defaultCollapsed/);
   // accordion/fieldset 的 sections 分块手风琴。
   assert.match(fieldVue, /const fieldsetSections = computed\(/);
   assert.match(fieldVue, /function toggleFieldsetSection\(index\)/);
@@ -168,8 +167,6 @@ test('结构化分组默认收起，标题行带摘要；升级价格按三块
   assert.deepStrictEqual(Object.keys(accordion.groups).sort(), [...expectedGroups].sort());
   for (const key of expectedGroups) {
     const cfg = accordion.groups[key];
-    assert.strictEqual(cfg.collapsible, true, `${key} 应开启手风琴`);
-    assert.strictEqual(cfg.defaultCollapsed, true, `${key} 应默认收起`);
     assert.ok(cfg.listPreview && cfg.listPreview.titleKey, `${key} 应配置标题行摘要`);
     assert.ok(cfg.listPreview.descKey, `${key} 应配置标题行时长摘要`);
     assert.strictEqual(cfg.listPreview.descUnitKey, 'unit', `${key} 时长摘要应带单位`);
@@ -470,13 +467,11 @@ test('SPA 镜像 schema 与 PHP schema 同构', async () => {
   const points = schema.groups.find((g) => g.key === 'points-exchange').fields[1];
   assert.strictEqual(points.type, 'group');
   assert.deepStrictEqual(points.fields.map((f) => f.key), ['points', 'level', 'time', 'unit']);
-  // 手风琴配置与 PHP 侧一致。
+  // 标题行摘要配置与 PHP 侧一致（折叠为渲染器统一行为，不再由 schema 开关）。
   for (const key of ['vip_1_product', 'vip_2_product', 'vip_1_renew_product', 'vip_2_renew_product']) {
-    const group = findGroup(schema, key);
-    assert.strictEqual(group.collapsible, true, `${key} 应开启手风琴`);
-    assert.strictEqual(group.defaultCollapsed, true, `${key} 应默认收起`);
+    assert.strictEqual(findGroup(schema, key).listPreview.prefix, '价格：', `${key} 摘要前缀`);
   }
-  assert.strictEqual(findGroup(schema, 'pay_vip_points_exchange_product').collapsible, true);
+  assert.strictEqual(findGroup(schema, 'pay_vip_points_exchange_product').listPreview.prefix, '积分：');
   const upgrade = findGroup(schema, 'vip_upgrade_product');
   assert.strictEqual(upgrade.sections.length, 3);
   // SPA 默认值与 PHP 侧一致。

tests/widget-system/vip-settings-structured-harness.php

@@ -267,8 +267,6 @@ namespace {
 						foreach ($tab['fields'] as $field) {
 							if (($field['type'] ?? '') === 'group') {
 								$out['groups'][$tab['key'] . '/' . $field['key']] = [
-									'collapsible' => $field['collapsible'] ?? null,
-									'defaultCollapsed' => $field['defaultCollapsed'] ?? null,
 									'listPreview' => $field['listPreview'] ?? null,
 								];
 							}
@@ -294,8 +292,6 @@ namespace {
 						continue;
 					}
 					$out['groups']['points-exchange/' . $field['key']] = [
-						'collapsible' => $field['collapsible'] ?? null,
-						'defaultCollapsed' => $field['defaultCollapsed'] ?? null,
 						'listPreview' => $field['listPreview'] ?? null,
 					];
 				}