feat(rate-limits): use 1m buckets and 24h/3d ranges

Allow overview bucket_minutes=1; rate-limit analysis uses 1-minute
buckets and replaces 7d preset with 3 days.

frontend/app/(main)/access-logs/components/access-log-utils.ts

@@ -9,8 +9,8 @@ export type SearchDraft = {
 
 export type OverviewRangeHours = 24 | 168 | 360 | 720;
 
-/** 限流分析等短窗口场景：仅 24 小时 / 7 天 */
-export type RateLimitRangeHours = 24 | 168;
+/** 限流分析等短窗口场景：仅 24 小时 / 3 天 */
+export type RateLimitRangeHours = 24 | 72;
 
 export const PAGE_SIZE_OPTIONS = [20, 50, 100, 200];
 
@@ -29,7 +29,7 @@ export const RATE_LIMIT_RANGE_OPTIONS: {
   label: string;
 }[] = [
   { value: 24, label: '24 小时' },
-  { value: 168, label: '7 天' },
+  { value: 72, label: '3 天' },
 ];
 
 export const DETAIL_SORT_OPTIONS = [

frontend/app/(main)/rate-limits/components/rate-pressure-chart.tsx

@@ -11,10 +11,10 @@ import { calculateNiceAxisMax, formatCompactNumber } from '@/lib/utils/metrics';
 
 import {
   formatOverviewTrendLabel,
-  type OverviewRangeHours,
+  type RateLimitRangeHours,
 } from '../../access-logs/components/access-log-utils';
 
-const DEFAULT_BUCKET_SECONDS = 300;
+const DEFAULT_BUCKET_SECONDS = 60;
 const RPS_COLOR = '#38bdf8';
 const VISITS_COLOR = '#a78bfa';
 
@@ -54,14 +54,14 @@ function formatRps(value: number) {
 
 type RatePressureChartProps = {
   data?: AccessLogOverview;
-  hours: OverviewRangeHours;
+  hours: RateLimitRangeHours;
 };
 
 export function RatePressureChart({ data, hours }: RatePressureChartProps) {
   const bucketSeconds =
     (data?.bucket_minutes && data.bucket_minutes > 0
       ? data.bucket_minutes
-      : 5) * 60 || DEFAULT_BUCKET_SECONDS;
+      : 1) * 60 || DEFAULT_BUCKET_SECONDS;
 
   const rangeLabel = useMemo(() => {
     const end = data?.generated_at ? new Date(data.generated_at) : new Date();

frontend/app/(main)/rate-limits/page.tsx

@@ -31,12 +31,12 @@ function RateLimitsPageContent() {
   const [hosts, setHosts] = useState<string[]>([]);
 
   const overviewQuery = useQuery({
-    queryKey: ['openflare', 'rate-limits', 'overview', hours, hosts, 5],
+    queryKey: ['openflare', 'rate-limits', 'overview', hours, hosts, 1],
     queryFn: () =>
       AccessLogService.getOverview({
         hours,
         hosts: hosts.length > 0 ? hosts : undefined,
-        bucket_minutes: 5,
+        bucket_minutes: 1,
       }),
     enabled: !!user?.is_admin && tab === 'analysis',
   });