fix(traffic): сохранять историю и показывать достоверную свежесть

tests/e2e/traffic-catalog.spec.ts

@@ -1,3 +1,4 @@
+import { observedTrafficFixturePayload } from "./traffic-observation-fixture"
 import { test, expect } from '@playwright/test'
 
 for (const outcome of ['success', 'error'] as const) {
@@ -6,23 +7,23 @@ for (const outcome of ['success', 'error'] as const) {
     const gate = new Promise<void>(resolve => { release = resolve })
     const individual: string[] = []
     const server = { id: '1', name: 'Подтверждённый сервер', site: 'TEST', country: 'RU', status: 'online', rxNow: 2, txNow: 3, rxPeak: 5, txPeak: 6, rxTotal: 100, txTotal: 200, sessions: 1, rxSeries: [1, 2], txSeries: [2, 3] }
-    await page.route('**/health', route => route.fulfill({ json: { ok: true } }))
+    await page.route('**/health', route => route.fulfill({ json: observedTrafficFixturePayload({ ok: true }) }))
     await page.route('**/api/**', async route => {
       const path = new URL(route.request().url()).pathname
       if (/^\/api\/traffic\/servers\/[^/]+/.test(path)) individual.push(path)
       if (path === '/api/traffic/servers') {
         await gate
-        if (outcome === 'error') return route.fulfill({ status: 503, json: { error: 'Каталог временно недоступен' } })
-        return route.fulfill({ json: { servers: [server] } })
+        if (outcome === 'error') return route.fulfill({ status: 503, json: observedTrafficFixturePayload({ error: 'Каталог временно недоступен' }) })
+        return route.fulfill({ json: observedTrafficFixturePayload({ servers: [server] }) })
       }
-      if (path.endsWith('/live')) return route.fulfill({ status: 503, json: {} })
+      if (path.endsWith('/live')) return route.fulfill({ status: 503, json: observedTrafficFixturePayload({}) })
       const json = path === '/api/auth/config' ? { required: false }
         : path === '/api/traffic/servers/1' ? { server }
         : path === '/api/traffic/servers/1/interfaces' ? { interfaces: [] }
         : path === '/api/traffic/users' ? { users: [] }
         : path === '/api/traffic/bound-interfaces' ? { interfaces: [] }
         : path === '/api/servers' ? [] : {}
-      return route.fulfill({ json })
+      return route.fulfill({ json: observedTrafficFixturePayload(json) })
     })
     const catalog = page.waitForRequest(r => new URL(r.url()).pathname === '/api/traffic/servers')
     await page.goto('/traffic')