Improve local login handling with Passport.js authentication

Update the `/api/local-login` route to use Passport.js middleware for robust local authentication, including error handling for authentication failures and successful login.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: e5565357-90e1-419f-b9a8-6ee8394636df
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/6d543d2c-20b9-4ea6-93fe-70fe9b1d9f80/e5565357-90e1-419f-b9a8-6ee8394636df/WbUtQAg

server/localAuth.ts

@@ -138,12 +138,37 @@ export async function setupLocalAuth(app: Express) {
   });
 
   // Route login locale POST
-  app.post("/api/local-login", passport.authenticate("local"), (req, res) => {
-    res.json({ 
-      success: true, 
-      user: req.user,
-      message: "Login effettuato con successo" 
-    });
+  app.post("/api/local-login", (req, res, next) => {
+    passport.authenticate("local", (err: any, user: any, info: any) => {
+      if (err) {
+        return res.status(500).json({ 
+          success: false, 
+          message: "Errore durante il login" 
+        });
+      }
+      
+      if (!user) {
+        return res.status(401).json({ 
+          success: false, 
+          message: info?.message || "Email o password non corretti" 
+        });
+      }
+      
+      req.login(user, (loginErr) => {
+        if (loginErr) {
+          return res.status(500).json({ 
+            success: false, 
+            message: "Errore durante il login" 
+          });
+        }
+        
+        return res.json({ 
+          success: true, 
+          user: req.user,
+          message: "Login effettuato con successo" 
+        });
+      });
+    })(req, res, next);
   });