refactor: replace common package with config package for configuration loading

- Updated `down.go` and `up.go` to load configuration from the new `config` package instead of the deprecated `common` package.
- Removed `types.go` and `device.go` from the `common` package, consolidating validation logic into the new `validation` package.
- Adjusted related tests and container management code to reflect the new structure and ensure compatibility with the updated configuration handling.

Author: larkinwc

cmd/lxc-compose/down.go

@@ -3,7 +3,7 @@ package main
 import (
 	"fmt"
 
-	"github.com/larkinwc/proxmox-lxc-compose/pkg/common"
+	"github.com/larkinwc/proxmox-lxc-compose/pkg/config"
 	"github.com/larkinwc/proxmox-lxc-compose/pkg/container"
 
 	"github.com/spf13/cobra"
@@ -37,7 +37,7 @@ func downCmdRunE(_ *cobra.Command, args []string, configFile string) error {
 	}
 
 	// Load configuration
-	cfg, err := common.Load(configFile)
+	cfg, err := config.Load(configFile)
 	if err != nil {
 		return fmt.Errorf("failed to load config: %w", err)
 	}

cmd/lxc-compose/up.go

@@ -3,7 +3,7 @@ package main
 import (
 	"fmt"
 
-	"github.com/larkinwc/proxmox-lxc-compose/pkg/common"
+	"github.com/larkinwc/proxmox-lxc-compose/pkg/config"
 	"github.com/larkinwc/proxmox-lxc-compose/pkg/container"
 
 	"github.com/spf13/cobra"
@@ -31,7 +31,7 @@ func upCmdRunE(_ *cobra.Command, args []string) error {
 	}
 
 	// Load configuration
-	cfg, err := common.Load(configFile)
+	cfg, err := config.Load(configFile)
 	if err != nil {
 		return fmt.Errorf("failed to load config: %w", err)
 	}

pkg/common/common.go

@@ -0,0 +1 @@
+package common