refactor(feature:client): add defaults to charge options fields

Author: biplab1

core/model/src/commonMain/kotlin/com/mifos/core/model/objects/template/client/ChargeOptions.kt

@@ -20,15 +20,15 @@ import kotlinx.serialization.Serializable
 @Serializable
 @Parcelize
 data class ChargeOptions(
-    val id: Int,
-    val name: String,
-    val active: Boolean,
-    val penalty: Boolean,
-    val currency: Currency,
-    val amount: Double,
-    val chargeTimeType: ChargeTimeType,
-    val chargeAppliesTo: ChargeAppliesTo,
-    val chargeCalculationType: ChargeCalculationType,
-    val chargePaymentMode: ChargePaymentMode,
+    val id: Int? = null,
+    val name: String? = null,
+    val active: Boolean? = null,
+    val penalty: Boolean? = null,
+    val currency: Currency? = null,
+    val amount: Double? = null,
+    val chargeTimeType: ChargeTimeType? = null,
+    val chargeAppliesTo: ChargeAppliesTo? = null,
+    val chargeCalculationType: ChargeCalculationType? = null,
+    val chargePaymentMode: ChargePaymentMode? = null,
     val incomeOrLiabilityAccount: IncomeOrLiabilityAccount? = null,
 ) : Parcelable

feature/client/src/commonMain/kotlin/com/mifos/feature/client/clientChargeDialog/ChargeDialogScreen.kt

@@ -253,11 +253,11 @@ private fun ChargeDialogContent(
             label = stringResource(Res.string.feature_client_charge_name),
             readOnly = true,
             onOptionSelected = { index, value ->
-                chargeId = chargeTemplate.chargeOptions[index].id
+                chargeId = chargeTemplate.chargeOptions[index].id ?: -1
                 chargeName = value
                 chargeNameError = false
             },
-            options = chargeTemplate.chargeOptions.map { it.name },
+            options = chargeTemplate.chargeOptions.map { it.name ?: "" },
             errorMessage = if (chargeNameError) stringResource(Res.string.feature_client_message_field_required) else null,
         )