refactor: implement dynamic storage discovery and add unit tests

tests/unit/test_proxmox_logic.py

@@ -0,0 +1,33 @@
+import pytest
+from unittest.mock import MagicMock, patch
+from infra_cli.proxmox import ProxmoxManager
+
+class MockConfig:
+    def get_node(self, name):
+        return {"host": "1.2.3.4", "pass": "secret"}
+    def get(self, key, default=None):
+        return default
+
+@patch('infra_cli.proxmox.SSHClient')
+def test_template_resolution(mock_ssh):
+    # Setup mock SSH response
+    mock_instance = mock_ssh.return_value
+    mock_instance.run.return_value.returncode = 0
+    mock_instance.run.return_value.stdout = "local:vztmpl/debian-13-standard_13.1-2_amd64.tar.zst tzst vztmpl 129710398"
+    
+    mgr = ProxmoxManager(MockConfig())
+    resolved = mgr.resolve_template("debian-13")
+    
+    assert resolved == "local:vztmpl/debian-13-standard_13.1-2_amd64.tar.zst"
+    mock_instance.run.assert_called_with("pvesm list --content vztmpl | grep 'debian-13-standard' | sort -V | tail -n 1")
+
+@patch('infra_cli.proxmox.SSHClient')
+def test_storage_discovery(mock_ssh):
+    mock_instance = mock_ssh.return_value
+    mock_instance.run.return_value.returncode = 0
+    mock_instance.run.return_value.stdout = "local-zfs zfspool active 1000 500 500 50%"
+    
+    mgr = ProxmoxManager(MockConfig())
+    storage = mgr.discover_storage()
+    
+    assert storage == "local-zfs"