fix(backend): уменьшить лишние записи SQLite

Убрать WAL TRUNCATE с hot path NetFlow, не писать неизменённые UPDATE
и служебные INSERT, кэшировать карты topology/analytics.

Co-authored-by: Cursor <[email protected]>

backend/src/modules/users/repository/users-repository.ts

@@ -1,6 +1,7 @@
-import { and, eq } from "drizzle-orm"
+import { and, count, eq } from "drizzle-orm"
 import { db } from "../../../db/index.js"
 import { appUsers, userInterfaceBindings } from "../../../db/schema.js"
+import { invalidateFlowCatalogCache } from "../../../services/traffic-flow-topology.js"
 
 export type AppUserRow = typeof appUsers.$inferSelect
 export type BindingRow = typeof userInterfaceBindings.$inferSelect
@@ -19,6 +20,7 @@ export function getUserRowByLogin(login: string): AppUserRow | undefined {
 
 export function createUserRow(values: typeof appUsers.$inferInsert): AppUserRow {
   const [inserted] = db.insert(appUsers).values(values).returning().all()
+  invalidateFlowCatalogCache()
   return inserted
 }
 
@@ -27,11 +29,13 @@ export function updateUserRowById(
   values: Partial<AppUserRow>,
 ): AppUserRow {
   const [updated] = db.update(appUsers).set(values).where(eq(appUsers.id, id)).returning().all()
+  invalidateFlowCatalogCache()
   return updated
 }
 
 export function deleteUserRowById(id: string): void {
   db.delete(appUsers).where(eq(appUsers.id, id)).run()
+  invalidateFlowCatalogCache()
 }
 
 export function listBindingRows(): BindingRow[] {
@@ -65,13 +69,15 @@ export function getBindingByServerIfacePeer(
 
 export function createBindingRow(values: typeof userInterfaceBindings.$inferInsert): BindingRow {
   const [inserted] = db.insert(userInterfaceBindings).values(values).returning().all()
+  invalidateFlowCatalogCache()
   return inserted
 }
 
 export function deleteBindingRowById(id: string): void {
   db.delete(userInterfaceBindings).where(eq(userInterfaceBindings.id, id)).run()
+  invalidateFlowCatalogCache()
 }
 
 export function countUserRows(): number {
-  return db.select().from(appUsers).all().length
+  return db.select({ n: count() }).from(appUsers).all()[0]?.n ?? 0
 }