refactor: 移除独立 hub/proxy/executor/gateway crate，统一为 gateway tunnel 架构

- 删除 aether-hub、aether-proxy 独立项目及其 Dockerfile/配置
- 删除 crates/aether-executor 和 crates/aether-gateway 全部模块
- 新增 apps/ 目录作为应用入口
- 将 hub 概念重构为 gateway tunnel transport
- 将 executor 重构为 execution runtime
- 新增 tunnel.rs 合约定义和 testkit tunnel/execution_runtime 模块
- 更新 Python 服务层和测试适配新架构命名

apps/aether-gateway/src/control/tests/admin_proxy_nodes.rs

@@ -0,0 +1,58 @@
+use super::*;
+
+#[test]
+fn classifies_admin_proxy_nodes_list_as_admin_proxy_route() {
+    let headers = headers(&[]);
+    let uri: Uri = "/api/admin/proxy-nodes?status=online&skip=10&limit=20"
+        .parse()
+        .expect("uri should parse");
+    let decision =
+        classify_control_route(&http::Method::GET, &uri, &headers).expect("route should classify");
+
+    assert_eq!(decision.route_class.as_deref(), Some("admin_proxy"));
+    assert_eq!(decision.route_family.as_deref(), Some("proxy_nodes_manage"));
+    assert_eq!(decision.route_kind.as_deref(), Some("list_nodes"));
+    assert_eq!(
+        decision.auth_endpoint_signature.as_deref(),
+        Some("admin:proxy_nodes")
+    );
+    assert!(!decision.is_execution_runtime_candidate());
+}
+
+#[test]
+fn classifies_admin_proxy_nodes_register_as_admin_proxy_route() {
+    let headers = headers(&[]);
+    let uri: Uri = "/api/admin/proxy-nodes/register"
+        .parse()
+        .expect("uri should parse");
+    let decision =
+        classify_control_route(&http::Method::POST, &uri, &headers).expect("route should classify");
+
+    assert_eq!(decision.route_class.as_deref(), Some("admin_proxy"));
+    assert_eq!(decision.route_family.as_deref(), Some("proxy_nodes_manage"));
+    assert_eq!(decision.route_kind.as_deref(), Some("register_node"));
+    assert_eq!(
+        decision.auth_endpoint_signature.as_deref(),
+        Some("admin:proxy_nodes")
+    );
+    assert!(!decision.is_execution_runtime_candidate());
+}
+
+#[test]
+fn classifies_admin_proxy_nodes_events_as_admin_proxy_route() {
+    let headers = headers(&[]);
+    let uri: Uri = "/api/admin/proxy-nodes/node-1/events?limit=50"
+        .parse()
+        .expect("uri should parse");
+    let decision =
+        classify_control_route(&http::Method::GET, &uri, &headers).expect("route should classify");
+
+    assert_eq!(decision.route_class.as_deref(), Some("admin_proxy"));
+    assert_eq!(decision.route_family.as_deref(), Some("proxy_nodes_manage"));
+    assert_eq!(decision.route_kind.as_deref(), Some("list_node_events"));
+    assert_eq!(
+        decision.auth_endpoint_signature.as_deref(),
+        Some("admin:proxy_nodes")
+    );
+    assert!(!decision.is_execution_runtime_candidate());
+}