feat(M02): 임시 스프레드시트 시험 단추가 inspect 문맥을 켬(브레인 검증용)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0168FQuoV7vDh5nhnSowW5cp

M02_MasterTemplete/M02_MasterTemplete_Spreadsheet_Trial.ts

@@ -56,7 +56,10 @@ export function mountSpreadsheetTrial(
         readSpreadsheetTrial(),
       ]);
       if (!alive) return;
-      sheet = createSpreadsheet(area, got.문서 as Workbook, { onChange: () => onDirty(true) });
+      sheet = createSpreadsheet(area, got.문서 as Workbook, {
+        onChange: () => onDirty(true),
+        inspect: true, // ⚠ 임시 — 브레인 검증용 문맥(window.__aisloSheet) · 산출근거 카드는 안 넘김
+      });
     } catch (error) {
       if (!alive) return;
       area.replaceChildren(el("p", { className: "m02-trial__empty", text: why(error) }));