feat: 付款周期显示任意月数，如 5 年付、18 个月付

src/components/NodeDetail.tsx

@@ -9,7 +9,7 @@ import { Skeleton } from "@/components/ui/skeleton"
 import { Country, Status } from "@/components/NodeCard"
 import { api, type Node } from "@/lib/api"
 import {
-  axisBytes, axisTop, bytes, clockFor, despike, quarters, cpuName, CYCLES, FOREVER, money, osName, rate,
+  axisBytes, axisTop, bytes, clockFor, cycle, despike, quarters, cpuName, FOREVER, money, osName, rate,
   timeTicks,
 } from "@/lib/format"
 
@@ -365,7 +365,7 @@ export function NodeDetail({ node }: { node: Node }) {
           label="续费"
           value={[
             node.price > 0
-              ? `${money(node.price, node.currency)} / ${CYCLES[node.billing_cycle] ?? node.billing_cycle}`
+              ? `${money(node.price, node.currency)} / ${cycle(node.billing_cycle)}`
               : "免费",
             node.expires_at ? `${node.expires_at} 到期` : FOREVER,
           ].join(" · ")}

src/lib/format.test.ts

@@ -4,7 +4,7 @@
 //
 // Nothing imports it, so the bundle never includes it.
 import {
-  axisBytes, axisTop, bytes, cpuName, daysUntil, despike, osName, pair, quarters, timeTicks, uptime,
+  axisBytes, axisTop, bytes, cpuName, cycle, daysUntil, despike, osName, pair, quarters, timeTicks, uptime,
 } from "./format.ts"
 
 let failed = 0
@@ -117,6 +117,9 @@ eq(uptime(2 * 86400 + 5 * 3600), "2 天 5 小时", "超过一天不再写分钟"
   eq(despike([180, 181, 180, 180, 181, 180, 180]), [180, 181, 180, 180, 181, 180, 180], "1 ms 抖动原样保留")
 }
 
+// 旧 hub 存名称，新 hub 把其余长度存成 `<n>m`；两种写法同一个长度读法一致。
+eq(["yearly", "12m", "60m", "18m", "once", "weekly"].map(cycle), ["年付", "年付", "5 年付", "18 个月付", "一次性", "weekly"], "付款周期")
+
 eq(osName("Debian GNU/Linux 12 (bookworm)"), "Debian 12", "发行版名去掉代号")
 eq(cpuName("Intel(R) Xeon(R) CPU E5-2680 8-Core Processor"), "Intel Xeon E5-2680", "CPU 名去掉商标和核数")
 

src/lib/format.ts

@@ -84,14 +84,17 @@ export function money(amount: number, currency: string): string {
   return `${SYMBOLS[currency] ?? ""}${amount.toFixed(2)}${SYMBOLS[currency] ? "" : ` ${currency}`}`
 }
 
-export const CYCLES: Record<string, string> = {
-  monthly: "月付",
-  quarterly: "季付",
-  semiannual: "半年付",
-  yearly: "年付",
-  biennial: "两年付",
-  triennial: "三年付",
-  once: "一次性",
+// Hub 1.3.0 and earlier store only these names; later hubs store any other
+// length as `<n>m`.
+const NAMED_CYCLES: Record<string, number> = { monthly: 1, quarterly: 3, semiannual: 6, yearly: 12, biennial: 24, triennial: 36 }
+const CYCLE_WORDS: Record<number, string> = { 1: "月付", 3: "季付", 6: "半年付", 12: "年付" }
+
+/** How a billing cycle reads: 月付, 5 年付, 18 个月付, 一次性. */
+export function cycle(billing: string): string {
+  if (billing === "once") return "一次性"
+  const months = NAMED_CYCLES[billing] ?? Number(/^(\d+)m$/.exec(billing)?.[1])
+  if (!months) return billing
+  return CYCLE_WORDS[months] ?? (months % 12 ? `${months} 个月付` : `${months / 12} 年付`)
 }
 
 // Hoisted out of `clock`: recharts calls a tickFormatter for every sample when