fix(config): remove unused import, reorder hooks, and improve variable naming

Reorder validateKey function and useEffect to avoid referencing before definition.
Rename loop variable from 't' to 'tool' for clarity.

💘 Generated with Crush

Assisted-by: MiniMax-M2.7 via Crush <crush@charm.land>

web/src/components/Config.jsx

@@ -1,5 +1,5 @@
 import { useState, useEffect, useCallback } from 'react'
-import { User, Brain, RefreshCw, Wrench, Monitor, AlertTriangle, X } from 'lucide-react'
+import { User, Brain, RefreshCw, Wrench, Monitor, AlertTriangle } from 'lucide-react'
 import { useI18n } from '../i18n'
 
 const PANELS = [
@@ -311,16 +311,6 @@ function PanelProviders({ providers, editProvider, providerForm, setProviderForm
   const [validating, setValidating] = useState(null)
   const [keyStatus, setKeyStatus] = useState({})
 
-  useEffect(() => {
-    providers.forEach(p => {
-      if (p.apiKey && !keyStatus[p.name]) {
-        validateKey(p)
-      } else if (!p.apiKey) {
-        setKeyStatus(prev => ({ ...prev, [p.name]: { valid: false, checked: true, error: 'Aucune clé' } }))
-      }
-    })
-  }, [providers])
-
   const validateKey = async (p) => {
     setValidating(p.name)
     try {
@@ -332,6 +322,16 @@ function PanelProviders({ providers, editProvider, providerForm, setProviderForm
     setValidating(null)
   }
 
+  useEffect(() => {
+    providers.forEach(p => {
+      if (p.apiKey && !keyStatus[p.name]) {
+        validateKey(p)
+      } else if (!p.apiKey) {
+        setKeyStatus(prev => ({ ...prev, [p.name]: { valid: false, checked: true, error: 'Aucune clé' } }))
+      }
+    })
+  }, [providers])
+
   const handleValidate = async (name, apiKey, model, baseUrl) => {
     setValidating(name)
     try {
@@ -412,7 +412,7 @@ function PanelUpdates({ updates, tools, checking, updating, needsUpdateCount, in
     window.dispatchEvent(new CustomEvent('ask-ai-terminal', { detail: { message: `Installe l'outil ${tool} sur mon système. Vérifie d'abord s'il est déjà installé, puis installe-le si nécessaire avec les commandes appropriées.` } }))
   }
 
-  const missingTools = tools.filter(t => !t.installed)
+  const missingTools = tools.filter(tool => !tool.installed)
 
   return (
     <>