Update Pier_v1 project

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

src/main.ts

@@ -3214,16 +3214,8 @@ function applyImport(): void {
   setStatus(`${state.piers.length}기 형상을 생성했습니다. 정보·경고는 오른쪽 알림에서 확인하세요.`);
 }
 
-function openImport(): void {
-  const landing = document.querySelector<HTMLDivElement>('.landing-overlay');
-  if (landing && !landing.hidden) return;
-  const dlg = $<HTMLDialogElement>('import-dialog');
-  if (!dlg.open) dlg.showModal();
-  $<HTMLInputElement>('project-name').focus();
-}
-
 async function fetchSample(): Promise<Uint8Array> {
-  const res = await fetch(new URL('samples/운곡교P1입력.xlsx', document.baseURI));
+  const res = await fetch(new URL('../도면추출/samples/운곡교P1입력.xlsx', import.meta.url));
   if (!res.ok) throw new Error(`샘플 응답 ${res.status}`);
   return new Uint8Array(await res.arrayBuffer());
 }
@@ -3232,7 +3224,6 @@ declare global {
   interface Window {
     loadBytesToApp?: (bytes: Uint8Array, fileName: string) => void;
     openSampleProject?: () => Promise<void>;
-    openDrawingFlow?: () => void;
   }
 }
 
@@ -3254,16 +3245,6 @@ window.openSampleProject = async () => {
     setError(error instanceof Error ? error.message : '샘플 교량 모델을 불러오지 못했습니다.');
   }
 };
-window.openDrawingFlow = () => {
-  const app = document.querySelector<HTMLElement>('.app');
-  const landing = document.querySelector<HTMLDivElement>('.landing-overlay');
-  if (app) {
-    app.hidden = false;
-    app.setAttribute('aria-hidden', 'false');
-  }
-  if (landing) landing.hidden = true;
-  setStatus('도면 입력은 현재 개발 중입니다. 기존 도면 분석 모듈과 연결되기 전까지는 파일 선택 흐름만 유지합니다.');
-};
 
 /** Piers that need a (re)build: never generated, or with changes not yet in the 3D model. */
 function generationTargets(): Pier[] {
@@ -3285,7 +3266,6 @@ function regenerateChanged(): void {
 }
 
 // --- events -----------------------------------------------------------------------------
-$<HTMLButtonElement>('open-import').addEventListener('click', openImport);
 $<HTMLButtonElement>('dlg-close').addEventListener('click', () => {
   $<HTMLDialogElement>('import-dialog').close();
   document.querySelector<HTMLElement>('.landing-overlay')?.classList.remove('modal-open');