fix(backoffice): stop sharing the position cookie with Smart Office

Both apps wrote a cookie named `current-position-id` but stored
different ids in it — freight the `employeePositionId`, Smart Office the
`position.id`. On a shared domain each login overwrote the other's desk
selection, and the loser silently fell back to the first position.

Freight now uses `freight-current-position-id` through a small helper
that reads the old name once, so a session live across the deploy keeps
its desk, and clears it on every write.

Also mounts the position switcher in the freight dashboard header. It
only existed under /performance-management, so on every other page a
two-desk user had no way to switch and was stuck on whatever
`useAuthUser` defaulted to. It now hides below two positions rather than
showing a one-option dropdown to the single-desk majority.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

apps/edr-freight-api/src/modules/audit/audit.interceptor.ts

@@ -4,24 +4,17 @@ import {
   HttpException,
   Injectable,
   NestInterceptor,
-} from '@nestjs/common';
-import { Observable, tap } from 'rxjs';
-import type { Request, Response } from 'express';
+} from "@nestjs/common";
+import { Observable, tap } from "rxjs";
+import type { Request, Response } from "express";
 
-import { AuditService } from './audit.service';
-import {
-  auditEndpointMatcher,
-  type MatchedAuditEndpoint,
-} from './audit-endpoint-matcher';
-import {
-  isAuditableActor,
-  resolveAuditActor,
-  type AuditActorSource,
-} from './audit-actor';
-import { redactUrlQuery, sanitizeRequestPayload } from './audit.sanitizer';
+import { AuditService } from "./audit.service";
+import { auditEndpointMatcher, type MatchedAuditEndpoint } from "./audit-endpoint-matcher";
+import { isAuditableActor, resolveAuditActor, type AuditActorSource } from "./audit-actor";
+import { redactUrlQuery, sanitizeRequestPayload } from "./audit.sanitizer";
 
 /** Methods that can change state. Everything else is never audited. */
-const AUDITED_METHODS = new Set(['POST', 'PUT', 'PATCH', 'DELETE']);
+const AUDITED_METHODS = new Set(["POST", "PUT", "PATCH", "DELETE"]);
 
 /** `error_message` ceiling — stack traces do not belong in this column. */
 const MAX_ERROR_LENGTH = 2_000;
@@ -52,7 +45,7 @@ export class AuditInterceptor implements NestInterceptor {
 
   intercept(context: ExecutionContext, next: CallHandler): Observable<unknown> {
     // Non-HTTP contexts (the RabbitMQ microservice transport) have no request.
-    if (context.getType() !== 'http') return next.handle();
+    if (context.getType() !== "http") return next.handle();
 
     const httpContext = context.switchToHttp();
     const request = httpContext.getRequest<RequestWithUser>();
@@ -72,10 +65,7 @@ export class AuditInterceptor implements NestInterceptor {
     const startedAt = Date.now();
     // The body is captured up front: handlers are free to mutate the DTO they
     // are given, so reading it after the fact can record post-mutation values.
-    const requestPayload = sanitizeRequestPayload(
-      request.body,
-      request.files ?? request.file,
-    );
+    const requestPayload = sanitizeRequestPayload(request.body, request.files ?? request.file);
 
     return next.handle().pipe(
       tap({
@@ -137,7 +127,6 @@ export class AuditInterceptor implements NestInterceptor {
       resourceId: matched.resourceId,
       request: requestPayload,
       ipAddress: resolveIp(request),
-      userAgent: request.headers['user-agent'] ?? null,
       requestId: resolveRequestId(request),
       durationMs: Date.now() - startedAt,
     });
@@ -154,10 +143,10 @@ function resolveErrorMessage(error: unknown): string | null {
   if (error instanceof HttpException) {
     const response = error.getResponse();
     const message =
-      typeof response === 'string'
+      typeof response === "string"
         ? response
         : ((response as { message?: unknown })?.message ?? error.message);
-    const text = Array.isArray(message) ? message.join('; ') : String(message);
+    const text = Array.isArray(message) ? message.join("; ") : String(message);
     return text.slice(0, MAX_ERROR_LENGTH);
   }
 
@@ -171,19 +160,19 @@ function resolveErrorMessage(error: unknown): string | null {
  * entry (the original client) taken.
  */
 function resolveIp(request: Request): string | null {
-  const forwarded = request.headers['x-forwarded-for'];
+  const forwarded = request.headers["x-forwarded-for"];
   const raw = Array.isArray(forwarded) ? forwarded[0] : forwarded;
-  const candidate = raw?.split(',')[0]?.trim() || request.ip;
+  const candidate = raw?.split(",")[0]?.trim() || request.ip;
   if (!candidate) return null;
 
   // Normalize IPv4-mapped IPv6 (`::ffff:10.0.0.1`), which the `inet` column
   // accepts but which reads badly and breaks grouping by address.
-  return candidate.startsWith('::ffff:') ? candidate.slice(7) : candidate;
+  return candidate.startsWith("::ffff:") ? candidate.slice(7) : candidate;
 }
 
 /** Correlation id from the proxy/tracing layer, when present. */
 function resolveRequestId(request: RequestWithUser): string | null {
-  const header = request.headers['x-request-id'] ?? request.headers['x-correlation-id'];
+  const header = request.headers["x-request-id"] ?? request.headers["x-correlation-id"];
   const value = Array.isArray(header) ? header[0] : header;
   return (value ?? request.id ?? null)?.toString().slice(0, 64) ?? null;
 }

apps/edr-freight-web/backoffice/src/auth/cookies.ts

@@ -1,3 +1,5 @@
+import { POSITION_COOKIE } from "@/shared/utils/positionCookie";
+
 const DEFAULT_PATH = "/";
 const SEVEN_DAYS_IN_SECONDS = 60 * 60 * 24 * 7;
 
@@ -32,6 +34,8 @@ export const clearSessionCookies = () => {
     AUTH_TOKEN_COOKIE,
     REFRESH_TOKEN_COOKIE,
     AUTH_USER_COOKIE,
+    POSITION_COOKIE,
+    // Pre-rename name, still cleared so a stale value cannot outlive logout.
     "current-position-id",
     "selected-position-id",
   ].forEach(clearCookie);

apps/edr-freight-web/backoffice/src/components/layout/FreightDashboardHeader.tsx

@@ -22,6 +22,7 @@ import { type ReactNode } from "react";
 import { useNavigate } from "react-router-dom";
 
 import DocReviewAlertButton from "@/features/bookingWindows/DocReviewAlertButton";
+import { PositionSelect } from "@/record-management/components/positionSelection";
 import NotificationBellContainer from "@/features/notifications/NotificationBellContainer";
 
 import type { PageMeta } from "./types";
@@ -111,6 +112,10 @@ const FreightDashboardHeader = ({
             renders only during a review phase that still has undecided
             requests, so it never competes for space otherwise. */}
         <Group gap={10} wrap="nowrap" align="center">
+          {/* Staff holding two posts switch desks here. Renders nothing for the
+              single-position majority, so it costs the header no space. */}
+          <PositionSelect />
+
           <DocReviewAlertButton />
 
           <Tooltip label="Language" withArrow openDelay={300}>

apps/edr-freight-web/backoffice/src/record-management/components/positionSelection.tsx

@@ -18,6 +18,10 @@ import {
   TooltipTrigger,
 } from "@/shared/common/ui/tooltip";
 import { PositionName } from "../dto/delegation/delegationDto";
+import {
+  getPositionCookie,
+  setPositionCookie,
+} from "@/shared/utils/positionCookie";
 interface BasePosition {
   id: string;
   employeePositionId: string;
@@ -55,7 +59,7 @@ export const PositionSelect = () => {
     ? unFilteredUserDetails.employee.flatMap((emp) => emp?.positions ?? [])
     : [];
   const selectablePositions = allPositions ?? [];
-  const currentPositionCookie = Cookies.get("current-position-id");
+  const currentPositionCookie = getPositionCookie();
   const delegatedPositionCookie = Cookies.get("delegatedPositionId");
   const activePositionId =
     selectedPositionId || currentPositionCookie || delegatedPositionCookie;
@@ -85,15 +89,18 @@ export const PositionSelect = () => {
     // (useAuthUser already self-heals this cookie for the same reason.)
     if (
       currentPosition.employeePositionId &&
-      Cookies.get("current-position-id") !== currentPosition.employeePositionId
+      getPositionCookie() !== currentPosition.employeePositionId
     ) {
-      Cookies.set("current-position-id", currentPosition.employeePositionId);
+      setPositionCookie(currentPosition.employeePositionId);
     }
 
     applyDelegationCookie(currentPosition);
   }, [currentPosition, isLoading, selectedPositionId, setSelectedPositionId]);
 
-  if (isLoading || selectablePositions.length === 0) return null;
+  // Below two desks there is nothing to switch between. This now sits in the
+  // main freight header, so a one-option dropdown would show for every
+  // single-desk staff member.
+  if (isLoading || selectablePositions.length < 2) return null;
 
   const handleChange = (value: string) => {
     const selected = selectablePositions.find((pos) => pos.id === value);
@@ -102,7 +109,7 @@ export const PositionSelect = () => {
     // dropdown's own value is position.id, which the API does not match on.
     setSelectedPositionId(selected?.employeePositionId ?? value);
     if (selected?.employeePositionId) {
-      Cookies.set("current-position-id", selected.employeePositionId);
+      setPositionCookie(selected.employeePositionId);
     }
     applyDelegationCookie(selected);
 

apps/edr-freight-web/backoffice/src/record-management/services/api/signatureAndTeeterService.ts

@@ -12,9 +12,11 @@ import {
 } from "@/record-management/dto/userRecords/teetersAndSignatureDto";
 import Cookies from "js-cookie";
 
+import { getPositionCookie } from "@/shared/utils/positionCookie";
+
 export const withHeaders = (passPosId: boolean = false) => {
   const unitId = Cookies.get("unit-id");
-  const positionId = Cookies.get("current-position-id");
+  const positionId = getPositionCookie();
   const projectId = Cookies.get("current-project-id");
   const delegatedPositionId = Cookies.get("delegatedPositionId");
 

apps/edr-freight-web/backoffice/src/record-management/services/api/withHeaders.tsx

@@ -1,9 +1,11 @@
 import Cookies from "js-cookie";
 
+import { getPositionCookie } from "@/shared/utils/positionCookie";
+
 export const withHeaders = () => {
   const tenantKey = Cookies.get("tenant-key");
   const unitId = Cookies.get("unit-id");
-  const positionId = Cookies.get("current-position-id");
+  const positionId = getPositionCookie();
   const projectId = Cookies.get("current-project-id");
   const delegatedPositionId = Cookies.get("delegatedPositionId");
   const headers: Record<string, string> = {};

apps/edr-freight-web/backoffice/src/shared/hooks/useAuthUser.ts

@@ -30,6 +30,10 @@ import {
   persistRememberMePreference,
   setAuthCookies,
 } from "@/shared/utils/authPersistence";
+import {
+  getPositionCookie,
+  setPositionCookie,
+} from "@/shared/utils/positionCookie";
 import { clearComplaintVerification } from "@/complaints/utils/complaintVerificationStorage";
 
 interface LoginPayload {
@@ -46,7 +50,7 @@ export const useAuthUser = () => {
   const { t } = useTranslation();
   const { handleError } = useErrorHandler(t);
   const delegatedPositionId = Cookies.get("delegatedPositionId");
-  const currentPositionId = Cookies.get("current-position-id");
+  const currentPositionId = getPositionCookie();
 
   const {
     setUser,
@@ -96,7 +100,7 @@ export const useAuthUser = () => {
         userDetails.employee?.[0]?.positions?.[0]?.employeePositionId;
       if (firstPositionId) {
         setSelectedPositionId(firstPositionId);
-        Cookies.set("current-position-id", firstPositionId, cookieOptions);
+        setPositionCookie(firstPositionId, cookieOptions);
       }
     }
 
@@ -141,7 +145,7 @@ export const useAuthUser = () => {
 
         if (fallbackId) {
           setSelectedPositionId(fallbackId);
-          Cookies.set("current-position-id", fallbackId);
+          setPositionCookie(fallbackId);
         }
       } else if (selectedPositionId) {
         // Self-heal stale cookies that were set to position.id instead of
@@ -157,10 +161,7 @@ export const useAuthUser = () => {
 
           if (matchingPosition?.employeePositionId) {
             setSelectedPositionId(matchingPosition.employeePositionId);
-            Cookies.set(
-              "current-position-id",
-              matchingPosition.employeePositionId,
-            );
+            setPositionCookie(matchingPosition.employeePositionId);
           }
         }
       }

apps/edr-freight-web/backoffice/src/shared/utils/faydaAuthSession.ts

@@ -8,6 +8,7 @@ import {
   getAuthCookieOptions,
   setAuthCookies,
 } from "@/shared/utils/authPersistence";
+import { setPositionCookie } from "@/shared/utils/positionCookie";
 import type { VerifiedCitizen } from "@/complaints/types/complaint.types";
 
 function unwrapApiData<T>(payload: T | { data?: T }): T {
@@ -138,7 +139,7 @@ export async function persistFaydaRegistrationAuth(
     const firstPositionId =
       userDetails.employee?.[0]?.positions?.[0]?.employeePositionId;
     if (firstPositionId) {
-      Cookies.set("current-position-id", firstPositionId, cookieOptions);
+      setPositionCookie(firstPositionId, cookieOptions);
     }
 
     return userDetails;

apps/edr-freight-web/backoffice/src/shared/utils/positionCookie.ts

@@ -0,0 +1,39 @@
+import Cookies from "js-cookie";
+
+type CookieOptions = NonNullable<Parameters<typeof Cookies.set>[2]>;
+
+/**
+ * Freight's own active-position cookie.
+ *
+ * Smart Office is a separate app on the same IAM and it also writes a cookie
+ * named `current-position-id` — but it stores `position.id` where freight
+ * stores `employeePositionId`. The two are not interchangeable, so on a shared
+ * domain each app's login silently overwrote the other's desk selection and the
+ * loser fell back to `positions[0]`. Freight keeps its own cookie name so both
+ * can hold a selection at once.
+ */
+export const POSITION_COOKIE = "freight-current-position-id";
+
+/**
+ * The pre-rename, shared-with-Smart-Office name. Still read so a session that
+ * is live across the deploy keeps its desk, and cleared on every write so the
+ * colliding cookie does not linger.
+ */
+const LEGACY_POSITION_COOKIE = "current-position-id";
+
+/** The active `employeePositionId`, or undefined when no desk is selected. */
+export const getPositionCookie = (): string | undefined =>
+  Cookies.get(POSITION_COOKIE) ?? Cookies.get(LEGACY_POSITION_COOKIE);
+
+export const setPositionCookie = (
+  value: string,
+  options?: CookieOptions,
+): void => {
+  Cookies.set(POSITION_COOKIE, value, options);
+  Cookies.remove(LEGACY_POSITION_COOKIE);
+};
+
+export const clearPositionCookie = (): void => {
+  Cookies.remove(POSITION_COOKIE);
+  Cookies.remove(LEGACY_POSITION_COOKIE);
+};