refactor(b09): 옛 탭 옮기기 ③ 관급·사급 — 새 틀 탭 파일로(내역 응답 한 벌을 봄)

- 화면 확인: 옮기기 전후 같음 — 사급 0 · 관급 0 · 안 갈린 것 13줄

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016VBGFXB9AbJBwXP19z75Qq

B09_Estimation/B09_Estimation_UI_Store.ts

@@ -8,6 +8,7 @@
  * ========================================================================== */
 
 import { API_BASE_URL } from "@config/config_frontend";
+import type { ProvenancePayload } from "@ui/ui_template_provenance";
 
 export interface BillNoteDto {
   column: string;
@@ -89,7 +90,28 @@ export interface ResourceRowDto {
 
 export type ResourceGroup = "labor" | "material" | "expense" | "machine" | "lumpsum";
 
+export interface MaterialSheetRowDto {
+  name: string;
+  spec: string;
+  unit: string;
+  total_amount: string;
+  unit_price_krw: string | null;
+  amount_krw: string | null;
+  note: string;
+}
+
+export interface MaterialSheetDto {
+  contractor: MaterialSheetRowDto[];
+  owner: MaterialSheetRowDto[];
+  unknown: MaterialSheetRowDto[];
+  contractor_total_krw: string;
+  owner_total_krw: string;
+  notes: string[];
+}
+
 export interface BillDto {
+  /** 근거 사전 — 개발환경에서만 옴. */
+  provenance?: ProvenancePayload;
   resources: {
     groups: Record<ResourceGroup, ResourceRowDto[]>;
     missing: string[];
@@ -104,6 +126,7 @@ export interface BillDto {
     missing: MissingDto[];
     unconfirmed_count: number;
     notes: string[];
+    material_sheet: MaterialSheetDto | null;
   };
   price_basis: { entries: SheetEntryDto[] };
   unit_price_sheet: { entries: SheetEntryDto[] };