fix: resolve frontend lint issues

frontend/src/pages/Admin.jsx

@@ -56,7 +56,7 @@ export default function Admin() {
         if (!handleAuthError(e)) setError(e.message)
       })
       .finally(() => setLoading(false))
-  }, [])
+    }, [handleAuthError])
 
   const handleDraw = async () => {
     setShowConfirm(false)
@@ -94,7 +94,7 @@ export default function Admin() {
     const csv = [header, ...rows]
       .map((row) => row.map((cell) => `"${String(cell).replace(/"/g, '""')}"`).join(';'))
       .join('\n')
-    const blob = new Blob([`${csv}`], { type: 'text/csv;charset=utf-8;' })
+    const blob = new Blob(['\uFEFF' + csv], { type: 'text/csv;charset=utf-8;' })
     const url = URL.createObjectURL(blob)
     const link = document.createElement('a')
     link.href = url

frontend/src/pages/MesGains.jsx

@@ -50,7 +50,20 @@ export default function MesGains() {
     }
   }, [handleAuthError])
 
-  useEffect(() => { fetchGains() }, [fetchGains])
+  useEffect(() => {
+  const loadGains = async () => {
+    try {
+      const data = await myGainsApi()
+      setGains(data.gains)
+    } catch (err) {
+      if (!handleAuthError(err)) setError(err.message)
+    } finally {
+      setLoading(false)
+    }
+  }
+
+  loadGains()
+}, [handleAuthError])
 
   return (
     <div className="min-h-screen bg-gray-50 flex flex-col px-8 py-12 max-w-lg mx-auto">

frontend/src/pages/Profile.jsx

@@ -1,20 +1,12 @@
 import { useState } from 'react'
-import { useNavigate } from 'react-router-dom'
 import UserNav from '../components/UserNav'
-import { changePasswordApi, deleteAccountApi } from '../services/auth'
+import { changePasswordApi} from '../services/auth'
 import { useHandleAuthError } from '../hooks/useHandleAuthError'
-import { useAuth } from '../context/AuthContext'
 
 export default function Profile() {
   const user = JSON.parse(localStorage.getItem('user') || '{}')
   const initials = `${(user.firstname || '?')[0]}${(user.lastname || '?')[0]}`.toUpperCase()
   const handleAuthError = useHandleAuthError()
-  const { logout } = useAuth()
-  const navigate = useNavigate()
-
-  const [showDeleteModal, setShowDeleteModal] = useState(false)
-  const [deleting, setDeleting]               = useState(false)
-  const [deleteError, setDeleteError]         = useState('')
 
   const [pwForm, setPwForm] = useState({ currentPassword: '', newPassword: '', confirmPassword: '' })
   const [showPw, setShowPw] = useState({ current: false, new: false, confirm: false })

frontend/src/pages/SaisirCodeUnique.jsx

@@ -17,7 +17,6 @@ export default function SaisirCodeUnique() {
   const [code, setCode]           = useState('')
   const [loading, setLoading]     = useState(false)
   const [gain, setGain]           = useState(null)
-  const [claim, setClaim]         = useState(null)
   const [wonAt, setWonAt]         = useState(null)
   const [showDetail, setShowDetail] = useState(false)
 
@@ -27,7 +26,6 @@ export default function SaisirCodeUnique() {
     try {
       const data = await participateApi(code.trim().toUpperCase())
       setGain(data.gain)
-      setClaim(data.claim)
       setWonAt(new Date())
     } catch (err) {
       if (!handleAuthError(err)) {
@@ -40,7 +38,6 @@ export default function SaisirCodeUnique() {
 
   const handleClose = () => {
     setGain(null)
-    setClaim(null)
     setWonAt(null)
     setShowDetail(false)
     setCode('')