refactor(workspace): enforce layered crate boundaries

crates/aether-gateway/frontdoor/src/lib.rs

@@ -0,0 +1,17 @@
+pub mod body;
+pub mod middleware;
+mod request_id;
+
+pub use body::{
+    BodyBufferError, BodyBufferPolicy, BodyBufferReservation, BufferedBody,
+    DEFAULT_BODY_BUFFER_PERMIT_BYTES,
+};
+
+pub use middleware::access_log::{
+    access_log_middleware, sanitize_access_log_path, should_downgrade_access_log,
+    GatewayRequestAcceptedAt, RequestLogEmitted,
+};
+pub use middleware::cf_headers::{
+    apply_cf_header_stripping, strip_cf_headers_middleware, CfConnectingIp,
+};
+pub use request_id::short_request_id;