doc(route): japanpost add multi-language docs (#16092)

lib/routes/japanpost/namespace.ts

@@ -1,6 +1,12 @@
 import type { Namespace } from '@/types';
 
 export const namespace: Namespace = {
-    name: 'Japanpost 日本郵便',
+    name: 'Japanpost',
     url: 'trackings.post.japanpost.jp',
+    zh: {
+        name: '日本邮政',
+    },
+    ja: {
+        name: '日本郵便',
+    },
 };

lib/routes/japanpost/router.ts

@@ -0,0 +1,40 @@
+import { Route } from '@/types';
+import { track } from './track';
+
+export const route: Route = {
+    name: 'Track & Trace Service',
+    path: '/track/:reqCode/:locale?',
+    example: '/japanpost/track/EJ123456789JP/en',
+    url: 'trackings.post.japanpost.jp/services/srv/search/',
+    handler: track,
+    categories: ['other'],
+    maintainers: ['tuzi3040'],
+    parameters: {
+        reqCode: 'Package Number',
+        locale: 'Language, default to japanese `ja`',
+    },
+    features: {
+        requireConfig: false,
+        requirePuppeteer: false,
+        antiCrawler: false,
+        supportRadar: false, // unsupported due to deprecation of `target` as a function in RSSHub-Radar 2.0.19
+        supportBT: false,
+        supportPodcast: false,
+        supportScihub: false,
+    },
+    description: `| Japanese | English |
+| -------- | ------- |
+| ja       | en      |`,
+    zh: {
+        name: '邮件追踪查询',
+        description: `| 日语 | 英语 |
+| ---- | ---- |
+| ja   | en   |`,
+    },
+    ja: {
+        name: '郵便追跡サービス',
+        description: `| 日本語 | 英語 |
+| ---- | ---- |
+| ja   | en   |`,
+    },
+};

lib/routes/japanpost/track.ts

@@ -1,4 +1,3 @@
-import { Route } from '@/types';
 import { getCurrentPath } from '@/utils/helpers';
 const __dirname = getCurrentPath(import.meta.url);
 
@@ -11,28 +10,7 @@ import utils from './utils';
 let baseTitle = '日本郵便';
 const baseUrl = 'https://trackings.post.japanpost.jp/services/srv/search/direct?';
 
-export const route: Route = {
-    path: '/track/:reqCode/:locale?',
-    categories: ['other'],
-    example: '/japanpost/track/EJ123456789JP/en',
-    parameters: { reqCode: 'Package Number', locale: 'Language, default to japanese `ja`' },
-    features: {
-        requireConfig: false,
-        requirePuppeteer: false,
-        antiCrawler: false,
-        supportBT: false,
-        supportPodcast: false,
-        supportScihub: false,
-    },
-    name: 'Track & Trace Service 郵便追跡サービス',
-    maintainers: ['tuzi3040'],
-    handler,
-    description: `| Japanese | English |
-  | -------- | ------- |
-  | ja       | en      |`,
-};
-
-async function handler(ctx) {
+export async function track(ctx) {
     const reqCode = ctx.req.param('reqCode');
     const reqReqCode = 'reqCodeNo1=' + reqCode;