feat(plugin,freelance,itops,web): P5-P6 dashboard widgets 平台扩展 + 仪表盘声明

P5 平台扩展:
- manifest.rs: Dashboard 变体新增 widgets 字段
- manifest.rs: 定义 PluginWidget/StatCard/ActionQuery 类型
- 前端: 扩展 DashboardWidget 类型支持 stat_cards/action_list/funnel/card_list
- 前端: 新增 4 个 widget 渲染器 (StatCardsWidget/ActionListWidget/FunnelStageWidget/CardListWidget)
- 前端: PluginDashboardPage widget 数据加载支持新类型

P6 仪表盘 widgets:
- freelance: 工作台仪表盘 4 个 widgets (财务概览/紧急待办/商机漏斗/活跃项目)
- itops: 新增运维概览仪表盘 2 个 widgets (运维概览/紧急待办)

apps/web/src/api/plugins.ts

@@ -199,7 +199,8 @@ export type PluginPageSchema =
     };
 
 export interface DashboardWidget {
-  type: 'stat_card' | 'bar_chart' | 'pie_chart' | 'funnel_chart' | 'line_chart';
+  type: 'stat_card' | 'bar_chart' | 'pie_chart' | 'funnel_chart' | 'line_chart'
+    | 'stat_cards' | 'action_list' | 'funnel' | 'card_list';
   entity: string;
   title: string;
   icon?: string;
@@ -207,6 +208,44 @@ export interface DashboardWidget {
   dimension_field?: string;
   dimension_order?: string[];
   metric?: string;
+  // stat_cards
+  cards?: StatCardDef[];
+  // action_list
+  max_items?: number;
+  queries?: ActionQueryDef[];
+  // funnel
+  lane_field?: string;
+  value_field?: string;
+  lane_order?: string[];
+  // card_list
+  filter?: string;
+  title_field?: string;
+  subtitle_field?: string;
+  tags?: string[];
+  label?: string;
+  label_field?: string;
+  action?: string;
+  sort?: string;
+}
+
+export interface StatCardDef {
+  entity: string;
+  aggregate?: string;
+  field?: string;
+  filter?: string;
+  label: string;
+  icon?: string;
+  color?: string;
+}
+
+export interface ActionQueryDef {
+  entity: string;
+  filter?: string;
+  sort?: string;
+  label_field: string;
+  subtitle_field?: string;
+  action: string;
+  icon?: string;
 }
 
 export type PluginSectionSchema =