package config import (	"fmt"	"os"	"path/filepath"	"strings") const defaultPluginsDir = "plugins" // ResolvePluginsDir normalizes the plugin directory for consistent use throughout the app.// It expands a leading tilde (~) to the user's home directory and defaults empty values to plugins.func ResolvePluginsDir(pluginsDir string) (string, error) {	pluginsDir = strings.TrimSpace(pluginsDir)	if pluginsDir == "" {		pluginsDir = defaultPluginsDir	}	if strings.HasPrefix(pluginsDir, "~") {		homeDir, errUserHomeDir := os.UserHomeDir()		if errUserHomeDir != nil {			return "", fmt.Errorf("resolve plugins directory: %w", errUserHomeDir)		}		remainder := strings.TrimPrefix(pluginsDir, "~")		remainder = strings.TrimLeft(remainder, "/\\")		if remainder == "" {			return filepath.Clean(homeDir), nil		}		normalized := strings.ReplaceAll(remainder, "\\", "/")		return filepath.Clean(filepath.Join(homeDir, filepath.FromSlash(normalized))), nil	}	return filepath.Clean(pluginsDir), nil} // ResolvePluginsDir resolves and stores the effective plugin directory.func (cfg *Config) ResolvePluginsDir() error {	if cfg == nil {		return nil	}	pluginsDir, errResolvePluginsDir := ResolvePluginsDir(cfg.Plugins.Dir)	if errResolvePluginsDir != nil {		return errResolvePluginsDir	}	cfg.Plugins.Dir = pluginsDir	return nil}