Ajout direct pour nouveau user

frontend/src/pages/settings/PlateformesSection.jsx

@@ -1,5 +1,5 @@
 import { useState, useEffect, useRef } from 'react';
-import { useNavigate } from 'react-router-dom';
+import { useNavigate, useSearchParams } from 'react-router-dom';
 import { api } from '../../api.js';
 import InvSelect from '../../components/InvSelect.jsx';
 import Modal from '../../components/Modal.jsx';
@@ -629,6 +629,8 @@ function PlatForm({ state, setter, logoFile, setLogoFile, logoPreview, setLogoPr
 }
 
 export default function PlateformesSection() {
+  const [searchParams, setSearchParams] = useSearchParams();
+
   // ── State ──────────────────────────────────────────────────────
   const [plats, setPlats]           = useState([]);
   const [investisseurs, setInvestisseurs] = useState([]);
@@ -693,6 +695,17 @@ export default function PlateformesSection() {
     setSelectedPlat(prev => prev ? prev : plats[0]);
   }, [plats]); // eslint-disable-line
 
+  // Ouverture automatique du picker d'ajout (venant de l'état vide "Aucune plateforme configurée")
+  useEffect(() => {
+    if (searchParams.get('openAdd') === '1') {
+      setErr(null);
+      setShowAddPicker(true);
+      const next = new URLSearchParams(searchParams);
+      next.delete('openAdd');
+      setSearchParams(next, { replace: true });
+    }
+  }, [searchParams]); // eslint-disable-line
+
   const handleLogoFile = (file, setFile, setPreview) => {
     if (!file) { setFile(null); setPreview(null); return; }
     setFile(file);