fix(M02): 저장 직후 지우기가 409 로 거절되던 흠 — 저장 뒤 좌측 목록 다시 읽음 · 지우기 전에도 최신 판으로

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0148XFUpPfpiuTjxF1EK9c95

M02_MasterTemplete/M02_MasterTemplete_UI_Page.ts

@@ -17,7 +17,7 @@ import "./M02_MasterTemplete_UI_Style.css";
 export async function renderM02MasterTemplate(root: HTMLElement): Promise<void> {
   const user = await fetchSessionUser().catch(() => null);
   const isAdmin = user?.role === "SYSTEM_ADMIN";
-  const main = createMain(isAdmin);
+  const main = createMain(isAdmin, () => void side.refresh());
   const side = buildSide({
     isAdmin,
     userName: user?.name,