fix(watcher.node): Handle fs.watch close without spurious restarts; add tests and improve test runner

ts/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@push.rocks/smartwatch',
-  version: '6.2.0',
+  version: '6.2.1',
   description: 'A cross-runtime file watcher with glob pattern support for Node.js, Deno, and Bun.'
 }

ts/watchers/watcher.node.ts

@@ -339,8 +339,9 @@ export class NodeWatcher implements IWatcher {
 
         // Handle 'close' event - fs.watch can close without error
         watcher.on('close', () => {
-          console.warn(`[smartwatch] FSWatcher closed unexpectedly for ${watchPath}`);
+          // Only log/restart if we didn't intentionally stop
           if (this._isWatching) {
+            console.warn(`[smartwatch] FSWatcher closed unexpectedly for ${watchPath}`);
             this.restartWatcher(watchPath, new Error('Watcher closed unexpectedly'));
           }
         });