refactor(workspace): enforce layered crate boundaries

crates/aether-testing/loadtools/src/http.rs

@@ -0,0 +1,18 @@
+use aether_http::{build_http_client, HttpClientConfig};
+
+pub fn json_body(value: serde_json::Value) -> serde_json::Value {
+    value
+}
+
+pub fn test_http_client_config() -> HttpClientConfig {
+    HttpClientConfig {
+        connect_timeout_ms: Some(1_000),
+        request_timeout_ms: Some(5_000),
+        user_agent: Some("aether-testkit".to_string()),
+        ..HttpClientConfig::default()
+    }
+}
+
+pub fn test_http_client() -> reqwest::Client {
+    build_http_client(&test_http_client_config()).expect("failed to build test HTTP client")
+}