feat(watcher): Enhance change stream watchers with buffering and EventEmitter support; update dependency versions

ts/classes.doc.ts

@@ -305,13 +305,20 @@ export class SmartDataDbDoc<T extends TImplements, TImplements, TManager extends
    * @param filterArg
    * @param forEachFunction
    */
+  /**
+   * Watch the collection for changes, with optional buffering and change stream options.
+   * @param filterArg MongoDB filter to select which changes to observe
+   * @param opts optional ChangeStreamOptions plus bufferTimeMs
+   */
   public static async watch<T>(
     this: plugins.tsclass.typeFest.Class<T>,
     filterArg: plugins.tsclass.typeFest.PartialDeep<T>,
-  ) {
+    opts?: plugins.mongodb.ChangeStreamOptions & { bufferTimeMs?: number },
+  ): Promise<SmartdataDbWatcher<T>> {
     const collection: SmartdataCollection<T> = (this as any).collection;
     const watcher: SmartdataDbWatcher<T> = await collection.watch(
       convertFilterForMongoDb(filterArg),
+      opts || {},
       this as any,
     );
     return watcher;