Setup: Scaffold NPM Server & NiiVue/Boostlet Baseline

[blayyyyyk]

Description

As a developer, I want to set up an NPM server with a baseline NiiVue and Boostlet integration so that we have a working environment to build our segmentation app.

Acceptance Criteria

• Initialize a Node.js/NPM project with a basic development server (e.g., Vite or Webpack).
• Import and render a standard NiiVue instance in the browser.
• Load a sample medical volume into the NiiVue viewer.
• Decision Path: Implement using the NiiVue nv.loadVolumes (subvolume API) prototype outside of Boostlet first (per Ayden's viewer approach), OR patch the mpsych/boostlet wrapper directly.

Implementation Notes & Resources

• Working outside of Boostlet first using the NiiVue subvol API is recommended for speed to meet the Wednesday presentation deadline.
• If patching Boostlet, target this file: mpsych/boostlet/src/frameworks/niivue.js#L75
• Resource: NiiVue Subvolume API Documentation