feat: trading feedback engine — periodic performance reports with AI summarization

- Migration 038: trading_reports table + report-summarizer agent seed
- 6 reporting modules: models, collector, sections, validator, summarizer, generator
- API endpoints: GET /api/reports (paginated, filterable), GET /api/reports/{id}
- Frontend hooks: useReports, useReport with TanStack Query
- Scheduler: daily (after 16:30 ET) and weekly (Saturday) report triggers
- Redis queue consumer for async report generation with retry/dedup
- 5 property-based tests (chunking, serialization, validation, accuracy, deltas)
- 109 unit/integration tests across all modules
- 6 frontend hook tests with MSW mocks

frontend/src/api/hooks.ts

@@ -1051,3 +1051,44 @@ export function useValidationAttributionLayers(lookback = '30d', horizon = '7d')
   const path = `/api/validation/attribution/layers${qs.toString() ? '?' + qs : ''}`;
   return useGet<LayerAttributionResponse>(['validation-attribution-layers', lookback, horizon], 'query', path);
 }
+
+// ---------------------------------------------------------------------------
+// Trading Reports
+// ---------------------------------------------------------------------------
+
+export interface ReportListItem {
+  id: string;
+  report_type: string;
+  period_start: string;
+  period_end: string;
+  validation_status: string;
+  generated_at: string;
+}
+
+export interface ReportDetail extends ReportListItem {
+  report_data: Record<string, unknown>;
+  created_at: string;
+}
+
+export function useReports(params?: {
+  report_type?: string;
+  start_date?: string;
+  end_date?: string;
+  limit?: number;
+  offset?: number;
+}) {
+  const qs = new URLSearchParams();
+  if (params?.report_type) qs.set('report_type', params.report_type);
+  if (params?.start_date) qs.set('start_date', params.start_date);
+  if (params?.end_date) qs.set('end_date', params.end_date);
+  if (params?.limit) qs.set('limit', String(params.limit));
+  if (params?.offset) qs.set('offset', String(params.offset));
+  const path = `/api/reports${qs.toString() ? '?' + qs : ''}`;
+  return useGet<ReportListItem[]>(['reports', params], 'query', path);
+}
+
+export function useReport(id: string | undefined) {
+  return useGet<ReportDetail>(
+    ['report', id], 'query', `/api/reports/${id}`, !!id
+  );
+}