feat: allow customizing history json filename

src/lib/history.mjs

@@ -5,8 +5,8 @@ const MAX_ITEMS = 1000; // max entries in history
 const TRUNCATE_AMOUNT = 200; // count of entries to remove when max is hit
 
 export default class History {
-  constructor() {
-    this.filePath = path.resolve('data', 'history.json');
+  constructor(filename = 'history.json') {
+    this.filePath = path.resolve('data', filename);
     try {
       const data = fs.readFileSync(this.filePath);
       this.db = data.length === 0 ? [] : JSON.parse(data);