fix: skip config loading for completion subcommands

Use CommandPath() instead of cmd.Use to properly detect completion
subcommands like "completion bash". Previously, only the leaf command
name was checked, causing config loading to fail when Chart.yaml
doesn't exist.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: kitsunoff

main.go

@@ -87,8 +87,9 @@ func init() {
 		}
 
 		// Load config after root detection (skip for init and completion commands)
-		cmdName := cmd.Use
-		if !strings.HasPrefix(cmdName, "init") && !strings.HasPrefix(cmdName, "completion") {
+		// Use CommandPath() to handle subcommands like "completion bash"
+		cmdPath := cmd.CommandPath() // e.g. "talm completion bash"
+		if !strings.Contains(cmdPath, " init") && !strings.Contains(cmdPath, " completion") {
 			configFile := filepath.Join(commands.Config.RootDir, "Chart.yaml")
 			if err := loadConfig(configFile); err != nil {
 				return fmt.Errorf("error loading configuration: %w", err)