feat(est-test): 현재데이타 갱신(Main Data·선택파일)

- 원본 0x10e12c8 규칙: 노임·자재·유류·표준·기계·환율, 품명/규격/단위 맞춤, 단가미갱신 표시
- 서버 /api/main-data 가 원본 설치 main.estx 를 원천으로 제공

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tools/est-test/server.cjs

@@ -7,6 +7,9 @@ const http = require("node:http"),
 const { importEstx, table: dbisamTable } = require("./import-estx.cjs");
 const { readXls } = require("./xls-read.cjs");
 const bookStore = require("./book-store.cjs");
+const mainDataPath =
+  process.env.EST_MAIN_DATA || "C:/Dasansoft/Est Plus 2/Data/ProjectData/main.estx";
+let mainData = null;
 const exchange = require("./exchange.cjs");
 const { exportEstx } = require("./export-estx.cjs");
 const jdl = require("./jdl.cjs");
@@ -89,6 +92,7 @@ const allowed = new Set([
   "native-global-vars.js",
   "native-new-estimate.js",
   "native-book.js",
+  "native-data-update.js",
   "native-wonga-tools.js",
   "native-estimate-print.js",
   "native-xml-check.js",
@@ -251,6 +255,26 @@ const server = http.createServer(async (req, res) => {
       reply(res, 200, importEstx(bytes, name));
       return;
     }
+    if (req.method === "GET" && url.pathname === "/api/main-data") {
+      // 현재데이타 갱신 원천 Main Data(원본 설치 main.estx = BufDat\Main\Main_1) — 갱신에 쓰는 표만
+      if (!mainData) {
+        const project = importEstx(fs.readFileSync(mainDataPath), "Main");
+        const keys = [
+          "LaborcDat",
+          "StuffcDat",
+          "SilJukDat",
+          "MachTitleDat",
+          "MachMainDat",
+          "MachGijunDat",
+        ];
+        mainData = {
+          name: "Main",
+          tables: Object.fromEntries(keys.map((k) => [k, project.tables[k] || []])),
+        };
+      }
+      reply(res, 200, mainData);
+      return;
+    }
     if (req.method === "GET" && url.pathname.startsWith("/api/book")) {
       // 품셈 보기(원본 BookData) — /api/book · /api/book/<책>/tree · /text/<pkid> · /search?q=&mode=title|body|keyword
       const [, book, what, id] = url.pathname.slice(1).split("/").slice(1);