(Feat) Add google

lib/screens/login_screen.dart

@@ -1,7 +1,7 @@
 import 'package:flutter/material.dart';
-import 'package:supabase_flutter/supabase_flutter.dart';
+import 'package:pocketbase/pocketbase.dart';
 
-import '../supabase_config.dart';
+import '../pocketbase_config.dart';
 
 /// Connexion d'un client existant (email + mot de passe).
 class LoginScreen extends StatefulWidget {
@@ -33,14 +33,17 @@ class _LoginScreenState extends State<LoginScreen> {
       _erreur = null;
     });
     try {
-      await supabase.auth.signInWithPassword(
-        email: _emailCtrl.text.trim(),
-        password: _mdpCtrl.text,
-      );
+      await pb.collection('users').authWithPassword(
+            _emailCtrl.text.trim(),
+            _mdpCtrl.text,
+          );
       // L'AuthGate prend le relais automatiquement (pop de cet écran).
       if (mounted) Navigator.of(context).pop();
-    } on AuthException catch (e) {
-      if (mounted) setState(() => _erreur = e.message);
+    } on ClientException catch (e) {
+      if (mounted) {
+        setState(() =>
+            _erreur = messageErreurPb(e, 'Email ou mot de passe incorrect.'));
+      }
     } catch (e) {
       if (mounted) setState(() => _erreur = 'Erreur : $e');
     } finally {