Checkpoint: Connexion Microsoft 365 (Azure AD OAuth2) : migration DB azureAdId, helpers backend, route callback, bouton Login, page AzureCallback, tests OK

client/src/App.tsx

@@ -14,6 +14,7 @@ import UsersAdmin from "./pages/UsersAdmin";
 import ImportLogs from "./pages/ImportLogs";
 import BoiteAIdees from "@/pages/BoiteAIdees";
 import RssFeeds from "@/pages/RssFeeds";
+import AzureCallback from "@/pages/AzureCallback";
 import { Loader2 } from "lucide-react";
 
 // ─── Guard d'authentification ─────────────────────────────────────────────────
@@ -125,6 +126,7 @@ function Router() {
   return (
     <Switch>
       <Route path="/login" component={Login} />
+      <Route path="/azure-callback" component={AzureCallback} />
       <Route path="/">
         <Redirect to="/veille" />
       </Route>