feat(bootstrap): add automatic environment setup with bootstrap scripts

Implement bootstrap functionality for streamlined dotfiles setup:
- Add 'bootstrap' command to run setup scripts manually
- Auto-execute bootstrap on 'init' with remote (--no-bootstrap to skip)
- Update README with bootstrap usage and examples
- Extend tests to cover bootstrap scenarios

cmd/init.go

@@ -14,6 +14,7 @@ func newInitCmd() *cobra.Command {
 		SilenceErrors: true,
 		RunE: func(cmd *cobra.Command, args []string) error {
 			remote, _ := cmd.Flags().GetString("remote")
+			noBootstrap, _ := cmd.Flags().GetBool("no-bootstrap")
 
 			lnk := core.NewLnk()
 			if err := lnk.InitWithRemote(remote); err != nil {
@@ -24,6 +25,33 @@ func newInitCmd() *cobra.Command {
 				printf(cmd, "🎯 \033[1mInitialized lnk repository\033[0m\n")
 				printf(cmd, "   📦 Cloned from: \033[36m%s\033[0m\n", remote)
 				printf(cmd, "   📁 Location: \033[90m~/.config/lnk\033[0m\n")
+
+				// Try to run bootstrap script if not disabled
+				if !noBootstrap {
+					printf(cmd, "\n🔍 \033[1mLooking for bootstrap script...\033[0m\n")
+
+					scriptPath, err := lnk.FindBootstrapScript()
+					if err != nil {
+						return err
+					}
+
+					if scriptPath != "" {
+						printf(cmd, "   ✅ Found bootstrap script: \033[36m%s\033[0m\n", scriptPath)
+						printf(cmd, "\n🚀 \033[1mRunning bootstrap script...\033[0m\n")
+						printf(cmd, "\n")
+
+						if err := lnk.RunBootstrapScript(scriptPath); err != nil {
+							printf(cmd, "\n⚠️  \033[33mBootstrap script failed, but repository was initialized successfully\033[0m\n")
+							printf(cmd, "   💡 You can run it manually with: \033[1mlnk bootstrap\033[0m\n")
+							printf(cmd, "   🔧 Error: %v\n", err)
+						} else {
+							printf(cmd, "\n✅ \033[1;32mBootstrap completed successfully!\033[0m\n")
+						}
+					} else {
+						printf(cmd, "   💡 No bootstrap script found\n")
+					}
+				}
+
 				printf(cmd, "\n💡 \033[33mNext steps:\033[0m\n")
 				printf(cmd, "   • Run \033[1mlnk pull\033[0m to restore symlinks\n")
 				printf(cmd, "   • Use \033[1mlnk add <file>\033[0m to manage new files\n")
@@ -40,5 +68,6 @@ func newInitCmd() *cobra.Command {
 	}
 
 	cmd.Flags().StringP("remote", "r", "", "Clone from remote URL instead of creating empty repository")
+	cmd.Flags().Bool("no-bootstrap", false, "Skip automatic execution of bootstrap script after cloning")
 	return cmd
 }