chore: add simple benchmarks

benchmarks/package.json

@@ -0,0 +1,20 @@
+{
+  "version": "1.0.0",
+  "name": "@nrsk/backpack-benchmarks",
+  "description": "Benchmarks for @nrsk/backpack",
+  "private": true,
+  "scripts": {
+    "bench:perf": "tsx src/perf.ts",
+    "bench:size": "tsx src/size.ts"
+  },
+  "dependencies": {
+    "benny": "^3.7.1"
+  },
+  "devDependencies": {
+    "@faker-js/faker": "^8.0.2",
+    "@msgpack/msgpack": "^3.0.0-beta2",
+    "@nrsk/unindent": "^1.0.0",
+    "@types/benchmark": "^2.1.2",
+    "tsx": "^3.12.7"
+  }
+}

benchmarks/src/data/faker.ts

@@ -0,0 +1,23 @@
+import { faker } from '@faker-js/faker'
+
+faker.seed(42)
+
+export function createFakeUser(length: number) {
+  return Array.from({ length }, () => ({
+    id: faker.string.uuid(),
+    linkedin: null,
+    picture: faker.internet.avatar(),
+    isActive: faker.datatype.boolean(),
+    name: faker.person.fullName(),
+    company: faker.company.name(),
+    balance: faker.commerce.price({ min: 100, max: 1000000 }),
+    age: faker.helpers.rangeToNumber({ min: 18, max: 70 }),
+    title: faker.person.jobTitle(),
+    birthdate: faker.date.birthdate(),
+    clients: Array.from({ length: faker.helpers.rangeToNumber({ min: 0, max: 100 }) }, () => ({
+      id: faker.string.uuid(),
+      firstName: faker.person.firstName(),
+      lastName: faker.person.lastName()
+    }))
+  }))
+}