feat: add lazyness to derived

[crutchcorn]

This PR builds on top of #40, please merge that first

This PR adds in a lazyness option to the derived class that:

• Doesn't update a value until it's needed
• Still works when other items are derived from it

[nx-cloud[bot]]

☁️ Nx Cloud Report

CI is running/has finished running commands for commit 5cae2ddb3e220f790b62e9d5b7c3c964baa7e94f. As they complete they will appear below. Click to see the status, the terminal output, and the build insights.

📂 See all runs for this CI Pipeline Execution

---

✅ Successfully ran 2 targets

• nx affected --targets=test:sherif,test:knip,test:eslint,test:lib,test:types,test:build,build --parallel=3
• nx run-many --target=build --exclude=examples/**

---

Sent with 💌 from NxCloud.

[pkg-pr-new[bot]]

commit: 5cae2dd

@tanstack/angular-store

pnpm add https://pkg.pr.new/@tanstack/angular-store@109

@tanstack/react-store

pnpm add https://pkg.pr.new/@tanstack/react-store@109

@tanstack/solid-store

pnpm add https://pkg.pr.new/@tanstack/solid-store@109

@tanstack/store

pnpm add https://pkg.pr.new/@tanstack/store@109

@tanstack/svelte-store

pnpm add https://pkg.pr.new/@tanstack/svelte-store@109

@tanstack/vue-store

pnpm add https://pkg.pr.new/@tanstack/vue-store@109

Open in Stackblitz