fix: add missing config.go file for Docker builds

cmd/pulse/config.go

@@ -0,0 +1,40 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+)
+
+var configCmd = &cobra.Command{
+	Use:   "config",
+	Short: "Configuration management commands",
+	Long:  `Manage Pulse configuration settings`,
+}
+
+var configInfoCmd = &cobra.Command{
+	Use:   "info",
+	Short: "Show configuration information",
+	Long:  `Display information about Pulse configuration`,
+	RunE: func(cmd *cobra.Command, args []string) error {
+		fmt.Println("Pulse Configuration Information")
+		fmt.Println("==============================")
+		fmt.Println()
+		fmt.Println("Configuration is managed through the web UI.")
+		fmt.Println("Settings are stored in encrypted files at /etc/pulse/")
+		fmt.Println()
+		fmt.Println("Configuration files:")
+		fmt.Println("  - nodes.enc      : Encrypted Proxmox node configurations")
+		fmt.Println("  - email.enc      : Encrypted email settings")
+		fmt.Println("  - system.json    : System settings (polling interval, etc)")
+		fmt.Println("  - alerts.json    : Alert rules and thresholds")
+		fmt.Println("  - webhooks.json  : Webhook configurations")
+		fmt.Println()
+		fmt.Println("To configure Pulse, use the Settings tab in the web UI.")
+		return nil
+	},
+}
+
+func init() {
+	configCmd.AddCommand(configInfoCmd)
+}