fix(uptime): сбросить снимок при смене пары и сохранить историю

backend/src/services/speed-probe-replacement.ts

@@ -1,16 +1,21 @@
+import { matchesSpeedProbeEndpoints, type SpeedProbeEndpoints } from "./speed-run-persistence.js"
 import type { SpeedProbeWrite } from "@mmapp/contracts"
 export type SpeedProbePatch = SpeedProbeWrite & { sortOrder: number; updatedAt: string }
 export type SpeedProbeTransaction = {
-  listIds: () => Promise<string[]>
+  listProbes: () => Promise<SpeedProbeEndpoints[]>
   remove: (id: string) => Promise<void>
-  upsert: (row: SpeedProbePatch, createdAt: string) => Promise<void>
+  upsert: (row: SpeedProbePatch, createdAt: string, resetObservations: boolean) => Promise<void>
 }
 export type SpeedProbeStore = { transaction: (run: (tx: SpeedProbeTransaction) => Promise<void>) => Promise<void> }
-/** The adapter must lock the catalog and commit all configuration changes atomically. Observations are never written here. */
+/** The adapter must lock the catalog and commit all configuration changes atomically. Observations are preserved for the same pair and reset when its endpoints change. */
 export async function replaceSpeedProbes(store: SpeedProbeStore, probes: SpeedProbeWrite[], now = new Date().toISOString()): Promise<void> {
   await store.transaction(async tx => {
     const nextIds = new Set(probes.map(row => row.id))
-    for (const id of await tx.listIds()) if (!nextIds.has(id)) await tx.remove(id)
-    for (const [sortOrder, row] of probes.entries()) await tx.upsert({ ...row, sortOrder, updatedAt: now }, now)
+    const previous = new Map((await tx.listProbes()).map(row => [row.id, row]))
+    for (const id of previous.keys()) if (!nextIds.has(id)) await tx.remove(id)
+    for (const [sortOrder, row] of probes.entries()) {
+      const reset = !matchesSpeedProbeEndpoints(previous.get(row.id), row)
+      await tx.upsert({ ...row, sortOrder, updatedAt: now }, now, reset)
+    }
   })
 }