feat(billing): add Seer wallet expiry

proto/sentry_protos/billing/v1/services/contract/ledger/v1/endpoint_get_ledger_balance.proto

@@ -2,6 +2,8 @@ syntax = "proto3";
 
 package sentry_protos.billing.v1.services.contract.ledger.v1;
 
+import "google/protobuf/timestamp.proto";
+
 message GetLedgerBalanceRequest {
   uint64 organization_id = 1;
   string account_id = 2;
@@ -12,4 +14,7 @@ message GetLedgerBalanceResponse {
   int64 balance_cents = 1;
   // Deposits whose invoices are not paid yet. Not part of balance_cents.
   int64 pending_deposit_cents = 2;
+  // Creation time of the most recent deposit, whether or not its invoice has
+  // been paid. Unset when the account has no deposits.
+  optional google.protobuf.Timestamp latest_deposit_at = 3;
 }

proto/sentry_protos/billing/v1/services/seer_feature_billing/v1/endpoint_get_seer_wallet_balance.proto

@@ -2,6 +2,8 @@ syntax = "proto3";
 
 package sentry_protos.billing.v1.services.seer_feature_billing.v1;
 
+import "sentry_protos/billing/v1/date.proto";
+
 // Reads the organization's prepaid Seer credit from its current contract.
 message GetSeerWalletBalanceRequest {
   uint64 organization_id = 1;
@@ -23,6 +25,9 @@ message SeerWallet {
   uint64 included_credits = 4;
   // Included credits used this billing period. At most included_credits.
   uint64 included_credits_used = 5;
+  // Purchased credits expire twelve months after the latest ledger deposit.
+  // Unset when the wallet has never received a deposit.
+  optional sentry_protos.billing.v1.Date expires_at = 6;
 }
 
 message GetSeerWalletBalanceResponse {

rust/src/sentry_protos.billing.v1.services.contract.ledger.v1.rs

@@ -60,6 +60,10 @@ pub struct GetLedgerBalanceResponse {
     /// Deposits whose invoices are not paid yet. Not part of balance_cents.
     #[prost(int64, tag = "2")]
     pub pending_deposit_cents: i64,
+    /// Creation time of the most recent deposit, whether or not its invoice has
+    /// been paid. Unset when the account has no deposits.
+    #[prost(message, optional, tag = "3")]
+    pub latest_deposit_at: ::core::option::Option<::prost_types::Timestamp>,
 }
 /// One row of an account's transaction history. Entries are append-only.
 #[derive(Clone, PartialEq, Eq, Hash, ::prost::Message)]

rust/src/sentry_protos.billing.v1.services.seer_feature_billing.v1.rs

@@ -240,6 +240,10 @@ pub struct SeerWallet {
     /// Included credits used this billing period. At most included_credits.
     #[prost(uint64, tag = "5")]
     pub included_credits_used: u64,
+    /// Purchased credits expire twelve months after the latest ledger deposit.
+    /// Unset when the wallet has never received a deposit.
+    #[prost(message, optional, tag = "6")]
+    pub expires_at: ::core::option::Option<super::super::super::Date>,
 }
 #[derive(Clone, PartialEq, Eq, Hash, ::prost::Message)]
 pub struct GetSeerWalletBalanceResponse {