fix(watcher): ensure child processes are killed and awaited during shutdown; improve cleanup handlers; bump smartshell dependency to ^3.3.2

ts/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@git.zone/tswatch',
-  version: '3.2.0',
+  version: '3.2.1',
   description: 'A development tool for automatically watching and re-compiling TypeScript projects upon detecting file changes, enhancing developer workflows.'
 }