fix(web): 修复 TypeScript 编译错误 — 10 处类型/未使用变量问题

- EntitySelect: 未使用的 searchFields 改为 _searchFields
- PluginKanbanPage: DragEndEvent/DragStartEvent 改为 type import, lane_order 改为 optional
- PluginDashboardPage: 添加 PluginPageSchema import, 移除未使用的 CHART_COLORS/palette/totalCount
- PluginGraphPage: 移除未使用的 Title/textColor, 修复 hovered → hoverState

apps/web/src/pages/PluginDashboardPage.tsx

@@ -15,7 +15,7 @@ import {
 } from '@ant-design/icons';
 import { Column, Pie, Funnel, Line } from '@ant-design/charts';
 import { countPluginData, aggregatePluginData, type AggregateItem } from '../api/pluginData';
-import { getPluginSchema, type PluginEntitySchema, type PluginSchemaResponse, type DashboardWidget } from '../api/plugins';
+import { getPluginSchema, type PluginEntitySchema, type PluginSchemaResponse, type PluginPageSchema, type DashboardWidget } from '../api/plugins';
 
 // ── 类型定义 ──
 
@@ -188,12 +188,10 @@ function SkeletonStatCard({ delay }: { delay: string }) {
 function BreakdownCard({
   breakdown,
   totalCount,
-  palette,
   index,
 }: {
   breakdown: FieldBreakdown;
   totalCount: number;
-  palette: { tagColor: string };
   index: number;
 }) {
   const maxCount = Math.max(...breakdown.items.map((i) => i.count), 1);
@@ -337,11 +335,6 @@ const WIDGET_ICON_MAP: Record<string, React.ReactNode> = {
   line_chart: <LineChartOutlined />,
 };
 
-const CHART_COLORS = [
-  '#4F46E5', '#059669', '#D97706', '#E11D48', '#7C3AED',
-  '#2563EB', '#0891B2', '#C026D3', '#EA580C', '#65A30D',
-];
-
 interface WidgetData {
   widget: DashboardWidget;
   data: AggregateItem[];
@@ -751,7 +744,6 @@ export function PluginDashboardPage() {
     setError(null);
 
     try {
-      const totalCount = entityStats.find((s) => s.name === selectedEntity)?.count ?? 0;
       const fieldResults: FieldBreakdown[] = [];
 
       for (const field of filterableFields) {
@@ -951,7 +943,6 @@ export function PluginDashboardPage() {
               key={bd.fieldName}
               breakdown={bd}
               totalCount={currentTotal}
-              palette={currentPalette}
               index={i}
             />
           ))}