fix: remove stale React Query cache on site inspection complete

SSE complete event now removes the cached siteInspection query data
so the result page fetches fresh data with aggregate_scores from API.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/src/hooks/useSiteInspectionSSE.ts

@@ -2,6 +2,7 @@
 
 import { useEffect, useRef } from "react";
 import { useRouter } from "next/navigation";
+import { useQueryClient } from "@tanstack/react-query";
 import { useSiteInspectionStore } from "@/stores/useSiteInspectionStore";
 import { api } from "@/lib/api";
 import type {
@@ -29,6 +30,7 @@ export function useSiteInspectionSSE(siteInspectionId: string | null) {
     setError,
   } = useSiteInspectionStore();
   const router = useRouter();
+  const queryClient = useQueryClient();
   const eventSourceRef = useRef<EventSource | null>(null);
 
   useEffect(() => {
@@ -94,7 +96,10 @@ export function useSiteInspectionSSE(siteInspectionId: string | null) {
         const data: SSESiteComplete = JSON.parse(e.data);
         setCompleted(data.aggregate_scores);
         eventSource.close();
-        // 결과 페이지로 자동 이동
+        // stale 캐시 제거 → 결과 페이지에서 fresh 데이터 로드
+        queryClient.removeQueries({
+          queryKey: ["siteInspection", siteInspectionId],
+        });
         router.push(`/site-inspections/${siteInspectionId}`);
       } catch {
         // JSON 파싱 실패 무시
@@ -138,5 +143,6 @@ export function useSiteInspectionSSE(siteInspectionId: string | null) {
     setCompleted,
     setError,
     router,
+    queryClient,
   ]);
 }