perf: use redeem usage index

server-rs/crates/spacetime-module/src/runtime/profile.rs

@@ -1852,8 +1852,8 @@ fn latest_profile_recharge_order(
 fn count_profile_redeem_code_user_usage(ctx: &ReducerContext, code: &str, user_id: &str) -> u32 {
     ctx.db
         .profile_redeem_code_usage()
-        .iter()
-        .filter(|row| row.code == code && row.user_id == user_id)
+        .by_profile_redeem_code_usage_code_user_id()
+        .filter((code, user_id))
         .count() as u32
 }
 
@@ -1863,12 +1863,7 @@ fn build_profile_redeem_code_usage_id(
     user_id: &str,
     redeemed_at_micros: i64,
 ) -> String {
-    let sequence = ctx
-        .db
-        .profile_redeem_code_usage()
-        .iter()
-        .filter(|row| row.code == code && row.user_id == user_id)
-        .count();
+    let sequence = count_profile_redeem_code_user_usage(ctx, code, user_id);
     format!(
         "redeem:{}:{}:{}:{}",
         code, user_id, redeemed_at_micros, sequence