feat(01-08): enhance password reset page with comprehensive error handling

- Enhanced error mapping with specific user-friendly messages
- Added accessibility announcements for success and error states
- Improved success message with detailed step-by-step instructions
- Added resend email functionality with cooldown timer preparation
- Enhanced error disposal when user starts typing
- Added email validation for empty inputs
- Improved PasswordResetForm widget with onEmailChanged callback
- Added spam folder guidance in success instructions
- Enhanced error recovery instructions for different scenarios

lib/features/authentication/presentation/widgets/password_reset_form.dart

@@ -9,6 +9,7 @@ class PasswordResetForm extends StatefulWidget {
   final bool isLoading;
   final String? errorMessage;
   final ValueChanged<String>? onSubmit;
+  final ValueChanged<String>? onEmailChanged;
   final String emailLabel;
   final String submitButtonText;
   final bool autofocusEmail;
@@ -22,6 +23,7 @@ class PasswordResetForm extends StatefulWidget {
     this.isLoading = false,
     this.errorMessage,
     this.onSubmit,
+    this.onEmailChanged,
     this.emailLabel = 'Email',
     this.submitButtonText = 'Send Reset Email',
     this.autofocusEmail = true,
@@ -150,6 +152,10 @@ class _PasswordResetFormState extends State<PasswordResetForm> {
             _emailError = null;
           });
         }
+        // Call external callback if provided
+        if (widget.onEmailChanged != null) {
+          widget.onEmailChanged!(value);
+        }
       },
       inputFormatters: [
         FilteringTextInputFormatter.deny(RegExp(r'\s')), // Prevent spaces