refactor(review): shell current-thread runtime + единый дефолт; PowerClient parse_enum; тесты на ipc::names

- shell: new_current_thread рантайм (без пула на холодном старте, #11); единый Initial::default().
- PowerClient: generic parse_enum (убрал 3 копии map_err).
- ipc::names::power::MOCK_IFACE; интеграционные тесты — через ipc::names (не хардкод).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Signed-off-by: Alexander <akotenev2003@gmail.com>

crates/core/shturman-power/tests/integration.rs

@@ -2,7 +2,7 @@
 //! Проверяет state по шине и fake-ACC: `dev.PowerMock1.SetAcc` → сигнал `Power1.AccChanged`.
 
 use futures_util::StreamExt;
-use shturman_ipc::types::PowerState;
+use shturman_ipc::{names, types::PowerState};
 use shturman_power::PowerService;
 use shturman_sdk::PowerClient;
 
@@ -16,15 +16,15 @@ async fn power_state_and_fake_acc() {
     let server = zbus::Connection::session().await.unwrap();
     server
         .object_server()
-        .at("/ru/shturman/Power", svc)
+        .at(names::power::PATH, svc)
         .await
         .unwrap();
     server
         .object_server()
-        .at("/ru/shturman/Power", mock)
+        .at(names::power::PATH, mock)
         .await
         .unwrap();
-    server.request_name("ru.shturman.Power").await.unwrap();
+    server.request_name(names::power::NAME).await.unwrap();
 
     let client_conn = zbus::Connection::session().await.unwrap();
     let power = PowerClient::new(&client_conn).await.unwrap();
@@ -36,9 +36,9 @@ async fn power_state_and_fake_acc() {
     // dev.PowerMock1.SetAcc(false) сырым D-Bus-вызовом
     client_conn
         .call_method(
-            Some("ru.shturman.Power"),
-            "/ru/shturman/Power",
-            Some("ru.shturman.dev.PowerMock1"),
+            Some(names::power::NAME),
+            names::power::PATH,
+            Some(names::power::MOCK_IFACE),
             "SetAcc",
             &(false,),
         )