- Replace HTML template lookups with programmatically created
`<template>` elements.
- Add component‑specific styles and markup for CanvasDisplay, including
a grid overlay SVG.
- Add SideMenu markup with toggle button, menu styling, and slot
content.
- Change FileServer base path to “/” to serve static assets from the
site root.
- Remove the unused helloHandler route registration.
- Add README documentation for the new ColorPicker web component.