fix architecture and write new tests

apps/dashboard/src/components/layout/TopBar.tsx

@@ -4,7 +4,7 @@ import { Bell } from 'lucide-react'
 import { usePathname, useRouter } from 'next/navigation'
 import { useState, useEffect } from 'react'
 import { io } from 'socket.io-client'
-import { EMPLOYEE_PROFILE_KEY, EMPLOYEE_TOKEN_KEY, apiFetch } from '@/lib/api'
+import { EMPLOYEE_PROFILE_KEY, apiFetch } from '@/lib/api'
 import { useDashboardI18n } from '@/components/I18nProvider'
 import { toDashboardAppPath } from '@/lib/dashboardPaths'
 
@@ -52,11 +52,6 @@ export default function TopBar() {
   const [mounted, setMounted] = useState(false)
   useEffect(() => { setMounted(true) }, [])
 
-  function getEmployeeToken() {
-    if (typeof window === 'undefined') return null
-    return window.localStorage.getItem(EMPLOYEE_TOKEN_KEY)
-  }
-
   const title = (() => {
     if (!mounted) return dict.titles['/']
     if (dict.titles[appPath]) return dict.titles[appPath]
@@ -65,15 +60,12 @@ export default function TopBar() {
     return dict.titles['/']
   })()
   async function refreshUnreadCount() {
-    if (!getEmployeeToken()) {
-      setUnreadCount(0)
-      return
-    }
-
     try {
       const data = await apiFetch<{ unread: number }>('/notifications/unread-count')
       setUnreadCount(data.unread)
-    } catch {}
+    } catch {
+      setUnreadCount(0)
+    }
   }
 
   useEffect(() => {
@@ -89,15 +81,12 @@ export default function TopBar() {
   }, [])
 
   useEffect(() => {
-    const token = window.localStorage.getItem(EMPLOYEE_TOKEN_KEY)
-    if (!token) return
-
     const socketOrigin = resolveSocketOrigin()
     if (!socketOrigin) return
 
     const socket = io(socketOrigin, {
       autoConnect: false,
-      auth: { token },
+      withCredentials: true,
       transports: ['polling', 'websocket'],
     })
 
@@ -121,11 +110,6 @@ export default function TopBar() {
 
   useEffect(() => {
     if (!showNotifs) return
-    if (!getEmployeeToken()) {
-      setNotifications([])
-      setLoadingNotifs(false)
-      return
-    }
 
     let cancelled = false
     setLoadingNotifs(true)
@@ -157,12 +141,6 @@ export default function TopBar() {
   }, [pathname])
 
   useEffect(() => {
-    const token = window.localStorage.getItem(EMPLOYEE_TOKEN_KEY)
-    if (!token) {
-      setUserInitials(computeInitials(dict.workspaceUser))
-      return
-    }
-
     const cached = window.localStorage.getItem(EMPLOYEE_PROFILE_KEY)
     if (cached) {
       try {