Add TypeScript interface for the new PipelineStage - Vector Search

[jkorach]

Prerequisites

• I have written a descriptive issue title
• I have searched existing issues to ensure the feature has not already been requested

🚀 Feature Proposal

With MongoDB releasing the new vector search index & pipeline stage, Mongoose is missing this PiplineStage, which creates compilation error in TypeScript. The proposal is to add support for this new PipelineStage

Motivation

To maintain & support the typesafe aggregation pipeline in Mongoose.

Example

import mongoose from "mongoose";

const contentsSchema = new mongoose.Schema({
  embedding: {
    type: [Number],
  },
  title: String,
});
export const Contents = mongoose.model(
  "Contents",
  contentsSchema,
  "contents",
);

 const result = await Contents.aggregate([
    {
      $vectorSearch: {
        index: "title_vector_index",
        path: "embedding",
        filter: {someField: "value"}
        queryVector:[0.3455,......0.123],
        numCandidates: 200,
        limit: 10,
      },
    },
  ]);

[jkorach]

Just opened this PR in order to solve it