add id field to PositionDetails struct

Author: illia-malachyn

cadence/contracts/FlowALPv0.cdc

@@ -1927,6 +1927,7 @@ access(all) contract FlowALPv0 {
             )
 
             return PositionDetails(
+                id: pid,
                 balances: balances,
                 poolDefaultToken: self.defaultToken,
                 defaultTokenAvailableBalance: defaultTokenAvailable,
@@ -4782,6 +4783,9 @@ access(all) contract FlowALPv0 {
     /// This structure is NOT used internally.
     access(all) struct PositionDetails {
 
+        /// The unique identifier of the position
+        access(all) let id: UInt64
+
         /// Balance details about each Vault Type deposited to the related Position
         access(all) let balances: [PositionBalance]
 
@@ -4795,11 +4799,13 @@ access(all) contract FlowALPv0 {
         access(all) let health: UFix128
 
         init(
+            id: UInt64,
             balances: [PositionBalance],
             poolDefaultToken: Type,
             defaultTokenAvailableBalance: UFix64,
             health: UFix128
         ) {
+            self.id = id
             self.balances = balances
             self.poolDefaultToken = poolDefaultToken
             self.defaultTokenAvailableBalance = defaultTokenAvailableBalance