Replace the Serializer with `node:v8`

Currently, Webpack implements a custom serialization mechanism for its caching system. This requires maintaining complex serialization logic and keeping it updated as JavaScript features evolve.

Instead of relying on a custom serializer, we can delegate object encoding/decoding to Node.js's built-in v8.serialize and v8.deserialize.

For this approach to work, all Webpack-internal classes participating in the cache must define a stable object representation.

For a class to be Serializable:

• It must implement an instance method:

  toObject() -> Object // Note: Classes _can_ be serialized directly, but they will be converted to Objects by V8
  

  Produces a plain object representation safe to pass into the serializer.

• It must implement a static method:

  fromObject(obj: Object) -> Instance
  

  Reconstructs the class instance from the serialized representation.

For example,

class ModuleDependency {
  constructor(request, range) {
    this.request = request;
    this.range = range;
    this.optional = false;
    this.weak = false;
  }
  
  toObject() {
    return {
      request: this.request,
      range: this.range ? [this.range[0], this.range[1]] : null,
      optional: this.optional,
      weak: this.weak
    };
  }
  
  static fromObject(obj) {
    const dependency = new ModuleDependency(obj.request, obj.range);
    dependency.optional = obj.optional;
    dependency.weak = obj.weak;
    return dependency;
  }
}

Start by locating Webpack’s custom serialization mechanism and the cache classes that participate in it. Review Node.js’s v8.serialize and v8.deserialize behavior, then define the stable object representations and reconstruction methods for those classes; done means the cache uses node:v8 without relying on the custom serializer.