fix(api): нормализовать дату сохранённого снимка Internet path

backend/src/routes/internet-path.ts

@@ -1,5 +1,5 @@
 import type { FastifyPluginAsyncZod } from "@fastify/type-provider-zod"
-import { readStoredInternetPathPayload } from "../services/internet-path-snapshot.js"
+import { mapStoredInternetPathResponse } from "../services/internet-path-snapshot.js"
 import { refreshScheduler } from "../services/scheduler.js"
 import {
   getInternetPathSettings,
@@ -48,16 +48,11 @@ const internetPathRoutes: FastifyPluginAsyncZod = async (app) => {
   app.get("/internet-path/latest", async (_req, reply) => {
     const row = await getLatestInternetPathSnapshot()
     if (!row) return reply.send({ snapshot: null })
-    let payload: object
     try {
-      payload = readStoredInternetPathPayload(row.payloadJson)
+      return reply.send(mapStoredInternetPathResponse(row))
     } catch {
       return reply.code(502).send({error: "Сохранённый снимок Internet path повреждён"})
     }
-    return reply.send({
-      snapshot: payload,
-      sampledAt: row.sampledAt,
-    })
   })
 }
 

backend/src/services/internet-path-snapshot.test.ts

@@ -1,5 +1,5 @@
 import assert from "node:assert/strict"
-import {collectConfirmedInternetPath, readInternetPathRows, readStoredInternetPathPayload} from "./internet-path-snapshot.js"
+import {collectConfirmedInternetPath, readInternetPathRows, readStoredInternetPathPayload, mapStoredInternetPathResponse} from "./internet-path-snapshot.js"
 const servers=[{id:1,type:"home-router",enabled:true},{id:2,type:"home-router",enabled:false},{id:3,type:"exit-node",enabled:true}]
 const sampledAt="2026-10-04T00:00:00Z"
 const defaults={servers:async()=>servers,gre:async()=>[],filters:async()=>[],speed:async()=>[],route:async(id:number)=>{assert.equal(id,1);return {gateway:null,routingMark:null}},wan:async(id:number)=>{assert.equal(id,1);return {defaultGateway:null,defaultInterface:null,uplinks:[]}}}
@@ -26,3 +26,12 @@ for(const [fields,row] of [[ ["dst-address"],{"message":"denied"} ],[["interface
 assert.deepEqual(readInternetPathRows([],"routes",["dst-address"]),[])
 assert.equal(readInternetPathRows([{ "dst-address":"0.0.0.0/0",active:"true" }],"routes",["dst-address"]).length,1)
 assert.equal(readInternetPathRows([{ ".id":"*1",name:"gre", "local-address":"0.0.0.0","remote-address":"192.0.2.2" }],"gre",[".id","name","local-address","remote-address"]).length,1)
+
+for (const stored of ["2026-10-04 07:00:00+07", "2026-10-04T00:00:00Z"]) {
+ const response=mapStoredInternetPathResponse({payloadJson:good,sampledAt:stored})
+ assert.equal(response.sampledAt,"2026-10-04T00:00:00.000Z")
+ assert.deepEqual(response.snapshot,good)
+}
+for (const invalid of ["", "bad", null]) assert.throws(()=>mapStoredInternetPathResponse({payloadJson:good,sampledAt:invalid as string}))
+assert.throws(()=>mapStoredInternetPathResponse({payloadJson:"bad",sampledAt}))
+console.log("internet path HTTP timestamp: PostgreSQL/ISO instant preserved; invalid metadata rejected")

backend/src/services/internet-path-snapshot.ts

@@ -30,3 +30,9 @@ export function readStoredInternetPathPayload(raw: unknown): object {
   if (!payload || typeof payload !== "object" || Array.isArray(payload)) throw new Error("Сохранённый снимок Internet path повреждён")
   return payload
 }
+
+/** PostgreSQL string-mode timestamps must be normalized at the HTTP boundary. */
+export function mapStoredInternetPathResponse(row: { payloadJson: unknown; sampledAt: string }) {
+  if (typeof row.sampledAt !== "string" || !row.sampledAt.trim()) throw new Error("Сохранённая дата Internet path повреждена")
+  return { snapshot: readStoredInternetPathPayload(row.payloadJson), sampledAt: new Date(row.sampledAt).toISOString() }
+}