feat(web): 完善插件前端页面 — 数据 API、筛选、视图切换和统计展示

- 新增 pluginData API 层：count/aggregate/stats 端点调用
- PluginCRUDPage 支持 visible_when 条件字段、筛选器下拉、视图切换
- PluginTabsPage 支持 tabs 布局和子实体 CRUD
- PluginTreePage 实现树形数据加载和节点展开/收起
- PluginGraphPage 实现关系图谱可视化展示
- PluginDashboardPage 实现统计卡片和聚合数据展示
- PluginAdmin 状态显示优化
- plugin store 增强 schema 加载逻辑和菜单生成

apps/web/src/api/pluginData.ts

@@ -86,3 +86,40 @@ export async function deletePluginData(
 ) {
   await client.delete(`/plugins/${pluginId}/${entity}/${id}`);
 }
+
+export async function countPluginData(
+  pluginId: string,
+  entity: string,
+  options?: { filter?: Record<string, string>; search?: string },
+) {
+  const params: Record<string, string> = {};
+  if (options?.filter) params.filter = JSON.stringify(options.filter);
+  if (options?.search) params.search = options.search;
+
+  const { data } = await client.get<{ success: boolean; data: number }>(
+    `/plugins/${pluginId}/${entity}/count`,
+    { params },
+  );
+  return data.data;
+}
+
+export interface AggregateItem {
+  key: string;
+  count: number;
+}
+
+export async function aggregatePluginData(
+  pluginId: string,
+  entity: string,
+  groupBy: string,
+  filter?: Record<string, string>,
+) {
+  const params: Record<string, string> = { group_by: groupBy };
+  if (filter) params.filter = JSON.stringify(filter);
+
+  const { data } = await client.get<{ success: boolean; data: AggregateItem[] }>(
+    `/plugins/${pluginId}/${entity}/aggregate`,
+    { params },
+  );
+  return data.data;
+}