refactor of usecases

apps/mobile/packages/design_system/lib/src/ui_colors.dart

@@ -113,6 +113,9 @@ class UiColors {
   /// Inactive text (#9CA3AF)
   static const Color textInactive = Color(0xFF9CA3AF);
 
+  /// Disabled text color (#9CA3AF)
+  static const Color textDisabled = textInactive;
+
   /// Placeholder text (#9CA3AF)
   static const Color textPlaceholder = Color(0xFF9CA3AF);
 
@@ -151,6 +154,9 @@ class UiColors {
   /// Inactive icon (#D1D5DB)
   static const Color iconInactive = Color(0xFFD1D5DB);
 
+  /// Disabled icon color (#D1D5DB)
+  static const Color iconDisabled = iconInactive;
+
   /// Active icon (#0A39DF)
   static const Color iconActive = primary;
 

apps/mobile/packages/design_system/lib/src/ui_icons.dart

@@ -130,6 +130,9 @@ class UiIcons {
   /// Wallet icon
   static const IconData wallet = _IconLib.wallet;
 
+  /// Bank icon
+  static const IconData bank = _IconLib.landmark;
+
   /// Credit card icon
   static const IconData creditCard = _IconLib.creditCard;
 

apps/mobile/packages/design_system/lib/src/widgets/ui_text_field.dart

@@ -27,6 +27,7 @@ class UiTextField extends StatelessWidget {
     this.suffix,
     this.readOnly = false,
     this.onTap,
+    this.validator,
   });
   /// The label text to display above the text field.
   final String? label;
@@ -76,6 +77,9 @@ class UiTextField extends StatelessWidget {
   /// Callback when the text field is tapped.
   final VoidCallback? onTap;
 
+  /// Optional validator for the text field.
+  final String? Function(String?)? validator;
+
   @override
   Widget build(BuildContext context) {
     return Column(
@@ -86,18 +90,19 @@ class UiTextField extends StatelessWidget {
           Text(label!, style: UiTypography.body4m.textSecondary),
           const SizedBox(height: UiConstants.space1),
         ],
-        TextField(
+        TextFormField(
           controller: controller,
           onChanged: onChanged,
           keyboardType: keyboardType,
           maxLines: maxLines,
           obscureText: obscureText,
           textInputAction: textInputAction,
-          onSubmitted: onSubmitted,
+          onFieldSubmitted: onSubmitted,
           autofocus: autofocus,
           inputFormatters: inputFormatters,
           readOnly: readOnly,
           onTap: onTap,
+          validator: validator,
           style: UiTypography.body1r.textPrimary,
           decoration: InputDecoration(
             hintText: hintText,