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.

tests/test_cloud.py

@@ -0,0 +1,43 @@
+from gpu_rent.cloud import ensure_floating_ip, server_floating_ip, server_status
+from gpu_rent.lock import SessionLock
+from gpu_rent.paths import lock_path
+
+
+class Obj:
+    def __init__(self, **kwargs):
+        self.__dict__.update(kwargs)
+
+
+def test_server_floating_ip():
+    server = Obj(
+        status="ACTIVE",
+        addresses={"gpu-rent": [{"addr": "192.168.77.10", "OS-EXT-IPS:type": "fixed"}, {"addr": "203.0.113.9", "OS-EXT-IPS:type": "floating"}]},
+    )
+    assert server_status(server) == "ACTIVE"
+    assert server_floating_ip(server) == "203.0.113.9"
+
+
+def test_lock_roundtrip():
+    with SessionLock():
+        assert lock_path().is_file()
+    assert not lock_path().is_file()
+
+
+def test_ensure_floating_ip_reuses_existing():
+    class Net:
+        def ports(self, device_id=None):
+            return [Obj(id="p1")]
+
+        def update_ip(self, existing_id, port_id=None):
+            assert existing_id == "old-fip"
+            assert port_id == "p1"
+            return Obj(floating_ip_address="9.9.9.9")
+
+        def create_ip(self, floating_network_id=None):
+            raise AssertionError("must reuse FIP")
+
+    conn = Obj(network=Net())
+    server = Obj(id="s1", addresses={})
+    ip, fip_id = ensure_floating_ip(conn, server, "old-fip", "9.9.9.9", lambda m: None)
+    assert ip == "9.9.9.9"
+    assert fip_id == "old-fip"