Add package data for GPU rent and update CLI documentation

- Added package data configuration for the 'gpu_rent' package in pyproject.toml.
- Updated README.md to include usage instructions for Windows and Unix launchers.
- Enhanced CLI documentation in cli.md to reflect new commands and their functionalities.
- Revised setup.md to clarify installation steps and environment setup.
- Improved error handling and command descriptions in the CLI implementation.
- Added new functions for model version handling and flavor resolution in the codebase.
- Updated state management to include additional properties for better tracking.

src/gpu_rent/tunnel.py

@@ -0,0 +1,62 @@
+"""SSH local forward. Closing the tunnel does not stop the GPU."""
+
+from __future__ import annotations
+
+import time
+import webbrowser
+from collections.abc import Callable
+
+from gpu_rent.config import Config
+from gpu_rent.errors import CloudError
+
+Log = Callable[[str], None]
+
+
+def run_tunnel(
+    cfg: Config,
+    host: str,
+    *,
+    open_browser: bool = False,
+    log: Log = print,
+    wait: Callable[[], None] | None = None,
+) -> None:
+    try:
+        from sshtunnel import SSHTunnelForwarder
+    except ImportError as exc:
+        raise CloudError("Нет sshtunnel. Переустанови пакет: pip install -e .") from exc
+
+    local_port = cfg.swarmui_local_port
+    log(f"туннель 127.0.0.1:{local_port} -> {host}:7801")
+    log("Ctrl+C закрывает туннель, GPU оставляет. Стоп GPU: gpu-rent stop")
+    server = SSHTunnelForwarder(
+        (host, 22),
+        ssh_username=cfg.ssh_user,
+        ssh_pkey=str(cfg.ssh_private_key_path),
+        remote_bind_address=("127.0.0.1", 7801),
+        local_bind_address=("127.0.0.1", local_port),
+        set_keepalive=30,
+    )
+    try:
+        server.start()
+    except Exception as exc:
+        raise CloudError(
+            f"не открыть туннель на {local_port}: {exc}. Порт занят локальным SwarmUI? "
+            "17801 должен быть свободен."
+        ) from exc
+
+    url = f"http://127.0.0.1:{local_port}"
+    log(f"UI {url}")
+    log(f"API {url}/API/")
+    log(f"MCP {url}/mcp")
+    if open_browser:
+        webbrowser.open(url)
+    try:
+        if wait is not None:
+            wait()
+            return
+        while server.is_active:
+            time.sleep(1)
+    except KeyboardInterrupt:
+        log("туннель закрыт. GPU жив.")
+    finally:
+        server.stop()