complete new audit system

backend/src/controllers/tariff.controller.ts

@@ -1,5 +1,6 @@
 import { Request, Response } from 'express';
 import * as tariffService from '../services/tariff.service.js';
+import { logChange } from '../services/audit.service.js';
 import { ApiResponse } from '../types/index.js';
 
 export async function getTariffs(req: Request, res: Response): Promise<void> {
@@ -39,6 +40,11 @@ export async function createTariff(req: Request, res: Response): Promise<void> {
   try {
     const providerId = parseInt(req.params.providerId);
     const tariff = await tariffService.createTariff({ ...req.body, providerId });
+    await logChange({
+      req, action: 'CREATE', resourceType: 'Tariff',
+      resourceId: tariff.id.toString(),
+      label: `Tarif ${tariff.name} angelegt`,
+    });
     res.status(201).json({ success: true, data: tariff } as ApiResponse);
   } catch (error) {
     res.status(400).json({
@@ -51,6 +57,11 @@ export async function createTariff(req: Request, res: Response): Promise<void> {
 export async function updateTariff(req: Request, res: Response): Promise<void> {
   try {
     const tariff = await tariffService.updateTariff(parseInt(req.params.id), req.body);
+    await logChange({
+      req, action: 'UPDATE', resourceType: 'Tariff',
+      resourceId: tariff.id.toString(),
+      label: `Tarif ${tariff.name} aktualisiert`,
+    });
     res.json({ success: true, data: tariff } as ApiResponse);
   } catch (error) {
     res.status(400).json({
@@ -62,7 +73,14 @@ export async function updateTariff(req: Request, res: Response): Promise<void> {
 
 export async function deleteTariff(req: Request, res: Response): Promise<void> {
   try {
-    await tariffService.deleteTariff(parseInt(req.params.id));
+    const tariffId = parseInt(req.params.id);
+    const tariff = await tariffService.getTariffById(tariffId);
+    await tariffService.deleteTariff(tariffId);
+    await logChange({
+      req, action: 'DELETE', resourceType: 'Tariff',
+      resourceId: tariffId.toString(),
+      label: `Tarif ${tariff?.name || tariffId} gelöscht`,
+    });
     res.json({ success: true, message: 'Tarif gelöscht' } as ApiResponse);
   } catch (error) {
     res.status(400).json({