feat: 热点穿透题材数从50提升到100，支持缓存定向清理

- 热点穿透top由50提升到100(涨幅榜+热度榜各取前100合并)，保证题材数≥100
- themes.py graph路由top上限le由60放宽到200
- daily_collector HOTMAP_TOP_N同步到100与页面一致
- auvops.sh新增cache-clear-graph子命令定向清理theme_graph缓存

src/routes/hot-map.tsx

@@ -52,7 +52,7 @@ function HotMapPage() {
 
   const { data: graph, isLoading, isFetching, isError, refetch } = useQuery({
     queryKey: ["themeGraph", mode],
-    queryFn: () => fetchThemeGraph(mode, 50),
+    queryFn: () => fetchThemeGraph(mode, 100),
     staleTime: 60_000,
     retry: false,
   });