Refactor backend status handling and improve idle management

- Updated the idle-killer logic to treat SwarmUI `empty` and `disabled` states as busy, preventing unnecessary idle time during provisioning.
- Enhanced the `wait_backend_idle` function to recognize suspended backends as ready, improving resource utilization and user feedback.
- Refined the `install_swarm_comfy` script to skip installation when backends are already present, streamlining the setup process.
- Improved the `resolve_llm_runtime` function to prioritize live configuration over stale state notes, ensuring accurate runtime detection.
- Added tests to validate the new backend status handling and idle management logic, ensuring robustness and reliability.

src/gpu_rent/cli.py

@@ -264,8 +264,16 @@ def status() -> None:
         table.add_row("preempt 24ч", "нет create/unshelve timestamp")
 
     cfg = load_config(require_auth=False)
-    listening = _port_open(cfg.swarmui_local_port)
-    table.add_row("туннель", f"localhost:{cfg.swarmui_local_port} {'слушает' if listening else 'нет'}")
+    from gpu_rent.tunnel import tunnel_forwards
+
+    forwards = tunnel_forwards(cfg)
+    if forwards:
+        bits = []
+        for loc, _rem in forwards:
+            bits.append(f"{loc}{'✓' if _port_open(loc) else '✗'}")
+        table.add_row("туннель", "localhost " + " ".join(bits))
+    else:
+        table.add_row("туннель", "нет forwards")
     table.add_row(
         "₽ / риски",
         f"панель Selectel; диск {cfg.data_volume_size_gb}GB 24/7; "