fix(#156): valider téléphone au blur et NIR en live.

Formatage NIR progressif + contrôles au fil de la saisie ; téléphone
validé à la perte de focus comme e-mail / CP.

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/lib/utils/nir_utils.dart

@@ -49,12 +49,21 @@ String nirToRaw(String normalized) {
   return s;
 }
 
-/// Formate pour affichage : 1 12 34 56 789 012 - 34 ou 1 12 34 2A 789 012 - 34 (Corse).
+/// Formate pour affichage (complet ou en cours de saisie) :
+/// `1 12 34 56 789 012 - 34` ou `1 12 34 2A 789 012 - 34` (Corse).
 String formatNir(String raw) {
-  final r = nirToRaw(raw);
+  final r = nirToRaw(raw).toUpperCase();
-  if (r.length < 15) return r;
+  if (r.isEmpty) return '';
-  // Même structure pour tous : sexe + année + mois + département + commune + ordre-clé.
+  final buf = StringBuffer();
-  return '${r.substring(0, 1)} ${r.substring(1, 3)} ${r.substring(3, 5)} ${r.substring(5, 7)} ${r.substring(7, 10)} ${r.substring(10, 13)} - ${r.substring(13, 15)}';
+  for (var i = 0; i < r.length && i < 15; i++) {
+    if (i == 1 || i == 3 || i == 5 || i == 7 || i == 10) {
+      buf.write(' ');
+    } else if (i == 13) {
+      buf.write(' - ');
+    }
+    buf.write(r[i]);
+  }
+  return buf.toString();
 }
 
 /// Aligné sur le backend (NIR côté API / nir.util.ts) : sexe 1–3, département 2A ou 2B pour la Corse.
@@ -92,20 +101,39 @@ String? validateNir(String? value) {
   return null;
 }
 
-/// Formateur de saisie : affiche le NIR formaté (1 12 34 56 789 012 - 34) et limite à 15 caractères utiles.
+/// Validation pendant la saisie : pas d’erreur si incomplet encore plausible ;
+/// dès 15 caractères, même contrôles que [validateNir].
+String? validateNirTyping(String? value) {
+  if (value == null || value.trim().isEmpty) return null;
+  final raw = nirToRaw(value).toUpperCase();
+  if (raw.isEmpty) return null;
+  if (raw[0] != '1' && raw[0] != '2' && raw[0] != '3') {
+    return 'Format NIR invalide (ex. 1 12 34 56 789 012 - 34 ou 2A pour la Corse)';
+  }
+  if (raw.length < 15) return null;
+  return validateNir(value);
+}
+
+/// Formateur de saisie : affiche le NIR formaté au fil de la frappe et limite à 15 caractères utiles.
 class NirInputFormatter extends TextInputFormatter {
+  const NirInputFormatter();
+
   @override
   TextEditingValue formatEditUpdate(
     TextEditingValue oldValue,
     TextEditingValue newValue,
   ) {
     final raw = normalizeNir(newValue.text);
-    if (raw.isEmpty) return newValue;
+    if (raw.isEmpty) {
+      return const TextEditingValue(
+        text: '',
+        selection: TextSelection.collapsed(offset: 0),
+      );
+    }
     final formatted = formatNir(raw);
-    final offset = formatted.length;
     return TextEditingValue(
       text: formatted,
-      selection: TextSelection.collapsed(offset: offset),
+      selection: TextSelection.collapsed(offset: formatted.length),
     );
   }
 }

frontend/lib/widgets/admin/am_dossier_wizard.dart

@@ -682,11 +682,7 @@ class _AmDossierWizardState extends State<AmDossierWizard> {
       fields: [
         ValidationLabeledField(
           label: 'NIR',
-          field: ValidationEditableField(
+          field: ValidationNirField(controller: _nirCtrl),
-            controller: _nirCtrl,
-            hintText: '15 caractères',
-            inputFormatters: [NirInputFormatter()],
-          ),
         ),
         ValidationLabeledField(
           label: 'Date de naissance',

frontend/lib/widgets/admin/common/validation_detail_section.dart

@@ -1,6 +1,8 @@
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:p_tits_pas/utils/email_utils.dart';
+import 'package:p_tits_pas/utils/nir_utils.dart';
+import 'package:p_tits_pas/utils/phone_utils.dart';
 import 'package:p_tits_pas/utils/postal_utils.dart';
 import 'admin_detail_modal.dart';
 
@@ -449,6 +451,167 @@ class _ValidationPostalCodeFieldState extends State<ValidationPostalCodeField> {
   }
 }
 
+/// Téléphone FR — formatters live + [validateFrenchNationalPhone] à la perte de focus.
+class ValidationPhoneField extends StatefulWidget {
+  final TextEditingController controller;
+  final String? hintText;
+  final bool allowEmpty;
+
+  const ValidationPhoneField({
+    super.key,
+    required this.controller,
+    this.hintText,
+    this.allowEmpty = false,
+  });
+
+  @override
+  State<ValidationPhoneField> createState() => _ValidationPhoneFieldState();
+}
+
+class _ValidationPhoneFieldState extends State<ValidationPhoneField> {
+  final GlobalKey<FormFieldState<String>> _fieldKey =
+      GlobalKey<FormFieldState<String>>();
+  late final FocusNode _focusNode;
+
+  @override
+  void initState() {
+    super.initState();
+    _focusNode = FocusNode();
+    _focusNode.addListener(_onFocusChange);
+  }
+
+  void _onFocusChange() {
+    if (_focusNode.hasFocus) return;
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      if (!mounted || _focusNode.hasFocus) return;
+      final c = widget.controller;
+      final digits = normalizePhone(c.text);
+      final formatted = digits.isEmpty ? '' : formatPhoneForDisplay(digits);
+      if (formatted != c.text) {
+        c.value = TextEditingValue(
+          text: formatted,
+          selection: TextSelection.collapsed(offset: formatted.length),
+        );
+      }
+      _fieldKey.currentState?.validate();
+    });
+  }
+
+  @override
+  void dispose() {
+    _focusNode.removeListener(_onFocusChange);
+    _focusNode.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return TextFormField(
+      key: _fieldKey,
+      controller: widget.controller,
+      focusNode: _focusNode,
+      keyboardType: TextInputType.phone,
+      textInputAction: TextInputAction.next,
+      inputFormatters: frenchPhoneInputFormatters,
+      style: const TextStyle(color: Colors.black87, fontSize: 14),
+      decoration: ValidationFieldDecoration.input(hint: widget.hintText).copyWith(
+        errorStyle: TextStyle(color: Colors.red.shade700, fontSize: 11),
+        errorMaxLines: 2,
+      ),
+      validator: (value) =>
+          validateFrenchNationalPhone(value, allowEmpty: widget.allowEmpty),
+    );
+  }
+}
+
+/// NIR — formatage live ([NirInputFormatter]) + validation au fil de la saisie / blur.
+class ValidationNirField extends StatefulWidget {
+  final TextEditingController controller;
+  final String? hintText;
+  final bool allowEmpty;
+
+  const ValidationNirField({
+    super.key,
+    required this.controller,
+    this.hintText,
+    this.allowEmpty = false,
+  });
+
+  @override
+  State<ValidationNirField> createState() => _ValidationNirFieldState();
+}
+
+class _ValidationNirFieldState extends State<ValidationNirField> {
+  final GlobalKey<FormFieldState<String>> _fieldKey =
+      GlobalKey<FormFieldState<String>>();
+  late final FocusNode _focusNode;
+  bool _blurred = false;
+
+  @override
+  void initState() {
+    super.initState();
+    _focusNode = FocusNode();
+    _focusNode.addListener(_onFocusChange);
+  }
+
+  void _onFocusChange() {
+    if (_focusNode.hasFocus) return;
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      if (!mounted || _focusNode.hasFocus) return;
+      setState(() => _blurred = true);
+      final c = widget.controller;
+      final raw = nirToRaw(c.text).toUpperCase();
+      final formatted = raw.isEmpty ? '' : formatNir(raw);
+      if (formatted != c.text) {
+        c.value = TextEditingValue(
+          text: formatted,
+          selection: TextSelection.collapsed(offset: formatted.length),
+        );
+      }
+      _fieldKey.currentState?.validate();
+    });
+  }
+
+  @override
+  void dispose() {
+    _focusNode.removeListener(_onFocusChange);
+    _focusNode.dispose();
+    super.dispose();
+  }
+
+  String? _validator(String? value) {
+    if (_blurred) {
+      if (widget.allowEmpty && (value == null || value.trim().isEmpty)) {
+        return null;
+      }
+      return validateNir(value);
+    }
+    return validateNirTyping(value);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return TextFormField(
+      key: _fieldKey,
+      controller: widget.controller,
+      focusNode: _focusNode,
+      keyboardType: TextInputType.text,
+      textInputAction: TextInputAction.next,
+      autovalidateMode: AutovalidateMode.onUserInteraction,
+      inputFormatters: const [NirInputFormatter()],
+      style: const TextStyle(color: Colors.black87, fontSize: 14),
+      decoration: ValidationFieldDecoration.input(
+        hint: widget.hintText ?? '1 12 34 56 789 012 - 34',
+      ).copyWith(
+        errorStyle: TextStyle(color: Colors.red.shade700, fontSize: 11),
+        errorMaxLines: 2,
+      ),
+      onChanged: (_) => _fieldKey.currentState?.validate(),
+      validator: _validator,
+    );
+  }
+}
+
 /// Grille label/champ éditable (délègue à [ValidationFormGrid]).
 class ValidationEditableSection extends StatelessWidget {
   final List<ValidationLabeledField> fields;

frontend/lib/widgets/common/identity_block.dart

@@ -214,11 +214,7 @@ class IdentityBlock extends StatelessWidget {  final String? title;
           ),
           ValidationLabeledField(
             label: 'Téléphone',
-            field: ValidationEditableField(
+            field: ValidationPhoneField(controller: _telCtrl!),
-              controller: _telCtrl!,
-              keyboardType: TextInputType.phone,
-              inputFormatters: frenchPhoneInputFormatters,
-            ),
           ),
           ValidationLabeledField(
             label: 'Email',

frontend/lib/widgets/nir_text_field.dart

@@ -54,7 +54,7 @@ class NirTextField extends StatelessWidget {
       inputFontSize: inputFontSize,
       keyboardType: TextInputType.text,
       validator: validator ?? validateNir,
-      inputFormatters: [NirInputFormatter()],
+      inputFormatters: const [NirInputFormatter()],
       enabled: enabled,
       readOnly: readOnly,
       style: style,