Display used and reserved limits capacity

frontend/packages/sxchnge_kyc/lib/src/models/limits.dart

@@ -10,6 +10,8 @@ class VisibleLimit {
     required this.verifiedMinor,
     required this.currentMinor,
     required this.remainingMinor,
+    required this.usedMinor,
+    required this.reservedMinor,
   });
   final LimitPeriod period;
   final String currency;
@@ -17,6 +19,13 @@ class VisibleLimit {
   final int verifiedMinor;
   final int currentMinor;
   final int remainingMinor;
+  final int usedMinor;
+  final int reservedMinor;
+
+  /// Presentation only: remaining capacity and payment authorization stay server-owned.
+  double get occupiedFraction => currentMinor <= 0
+      ? 0
+      : ((usedMinor + reservedMinor) / currentMinor).clamp(0.0, 1.0);
 }
 
 class Limits {

frontend/packages/sxchnge_kyc/lib/src/services/dummy.dart

@@ -76,7 +76,9 @@ class DummyLimitsService implements LimitsService {
             10000,
             250000,
             approved ? 250000 : 10000,
-            approved ? 250000 : 10000,
+            (approved ? 250000 : 10000) - 4000,
+            3000,
+            1000,
           ),
           LimitDTO(
             'month',
@@ -84,7 +86,9 @@ class DummyLimitsService implements LimitsService {
             50000,
             1000000,
             approved ? 1000000 : 50000,
-            approved ? 1000000 : 50000,
+            (approved ? 1000000 : 50000) - 19000,
+            18000,
+            1000,
           ),
         ],
       ),

frontend/packages/sxchnge_kyc/lib/src/transport/contracts.dart

@@ -38,10 +38,12 @@ class LimitDTO {
     this.verified,
     this.current,
     this.remaining,
+    this.used,
+    this.reserved,
   );
   final String period;
   final String currency;
-  final int basic, verified, current, remaining;
+  final int basic, verified, current, remaining, used, reserved;
 }
 
 class LimitsMapper {
@@ -57,6 +59,8 @@ class LimitsMapper {
             verifiedMinor: r.verified,
             currentMinor: r.current,
             remainingMinor: r.remaining,
+            usedMinor: r.used,
+            reservedMinor: r.reserved,
           ),
         )
         .toList(),