fix(api): сохранять каталог speed-проб атомарно

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

@@ -0,0 +1,16 @@
+import type { SpeedProbeWrite } from "@mmapp/contracts"
+export type SpeedProbePatch = SpeedProbeWrite & { sortOrder: number; updatedAt: string }
+export type SpeedProbeTransaction = {
+  listIds: () => Promise<string[]>
+  remove: (id: string) => Promise<void>
+  upsert: (row: SpeedProbePatch, createdAt: string) => 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. */
+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)
+  })
+}