replace debug() with our custom logger

mostly we want trace() and log(). trace() can be enabled whenever
we want by flipping a flag and restarting box

src/asynctask.js

@@ -1,8 +1,8 @@
-import debugModule from 'debug';
+import logger from './logger.js';
 import EventEmitter from 'node:events';
 import safe from 'safetydance';
 
-const debug = debugModule('box:asynctask');
+const { log, trace } = logger('asynctask');
 
 // this runs in-process
 class AsyncTask extends EventEmitter {
@@ -20,16 +20,16 @@ class AsyncTask extends EventEmitter {
     }
 
     async start() { // should not throw!
-        debug(`start: ${this.name} started`);
+        log(`start: ${this.name} started`);
         const [error] = await safe(this._run(this.#abortController.signal));
-        debug(`start: ${this.name} finished`);
+        log(`start: ${this.name} finished`);
         this.emit('done', { errorMessage: error?.message || '' });
         this.#abortController = null;
     }
 
     stop() {
         if (this.#abortController === null) return; // already finished
-        debug(`stop: ${this.name} . sending abort signal`);
+        log(`stop: ${this.name} . sending abort signal`);
         this.#abortController.abort();
     }