feat: Enhance audit logging with client IP tracking

- Integrated client IP address retrieval in the audit logging functionality across multiple controllers, including admin, common code, department, flow, screen, and table management.
- Updated the `auditLogService` to include a new method for obtaining the client's IP address, ensuring accurate logging of user actions.
- This enhancement improves traceability and accountability by capturing the source of requests, thereby strengthening the overall logging mechanism within the application.

backend-node/src/services/auditLogService.ts

@@ -1,6 +1,20 @@
+import { Request } from "express";
 import { query, pool } from "../database/db";
 import logger from "../utils/logger";
 
+export function getClientIp(req: Request): string {
+  const forwarded = req.headers["x-forwarded-for"];
+  if (forwarded) {
+    const first = Array.isArray(forwarded) ? forwarded[0] : forwarded.split(",")[0];
+    return first.trim();
+  }
+  const realIp = req.headers["x-real-ip"];
+  if (realIp) {
+    return Array.isArray(realIp) ? realIp[0] : realIp;
+  }
+  return req.ip || req.socket?.remoteAddress || "unknown";
+}
+
 export type AuditAction =
   | "CREATE"
   | "UPDATE"