Add server client

crates/pile-value/src/source/s3.rs

@@ -6,7 +6,7 @@ use pile_config::{
 use pile_io::S3Client;
 use smartstring::{LazyCompact, SmartString};
 use std::{
-	collections::{HashMap, HashSet},
+	collections::{BTreeMap, HashMap, HashSet},
 	sync::{Arc, OnceLock},
 };
 
@@ -24,7 +24,7 @@ pub struct S3DataSource {
 	pub prefix: Option<SmartString<LazyCompact>>,
 	pub pattern: GroupPattern,
 	pub encryption_key: Option<[u8; 32]>,
-	pub index: OnceLock<HashMap<SmartString<LazyCompact>, Item>>,
+	pub index: OnceLock<BTreeMap<SmartString<LazyCompact>, Item>>,
 }
 
 impl S3DataSource {
@@ -119,7 +119,7 @@ impl S3DataSource {
 			}
 		}
 
-		let mut index = HashMap::new();
+		let mut index = BTreeMap::new();
 		for key in all_keys.difference(&keys_grouped) {
 			let groups = resolve_groups(&source.pattern, key).await;
 			let group = groups