refactor: add Params.resetZdm() to collapse reset+addParam(0) into single call

Replaces 10 separate reset()+addParam(0) pairs across the parser with
a single resetZdm() method that inlines both operations, avoiding two
calls to a foreign object per sequence reset.

src/common/parser/Params.ts

@@ -129,6 +129,19 @@ export class Params implements IParams {
     this._digitIsSub = false;
   }
 
+  /**
+   * Reset and add 0 as first param (ZDM).
+   */
+  public resetZdm(): void {
+    this.length = 1;
+    this._subParamsLength = 0;
+    this._rejectDigits = false;
+    this._rejectSubDigits = false;
+    this._digitIsSub = false;
+    this._subParamsIdx[0] = 0;
+    this.params[0] = 0;
+  }
+
   /**
    * Add a parameter value.
    * `Params` only stores up to `maxLength` parameters, any later