Ocean: fix get apr default if any zero (#3075)

* ignore if any zero

* fmt

Author: canonbrother

lib/ain-ocean/src/api/pool_pair/service.rs

@@ -461,6 +461,14 @@ pub async fn get_apr(
     let loan_usd = get_yearly_reward_loan_usd(ctx, id).await?;
     let total_liquidity_usd = get_total_liquidity_usd(ctx, p).await?;
 
+    if custom_usd.is_zero()
+        || pct_usd.is_zero()
+        || loan_usd.is_zero()
+        || total_liquidity_usd.is_zero()
+    {
+        return Ok(PoolPairAprResponse::default());
+    }
+
     let yearly_usd = custom_usd
         .checked_add(pct_usd)
         .context(ArithmeticOverflowSnafu)?