Build Dashboard LWC Components

1. Writes an Apex controller to feed the dashboard, sometimes with demo records so it shows real figures, as in.
2. Builds the LWC bundle and usually draws the charts with Chart.js.
3. Deploys the components and places them in a custom app, often on a Lightning App Page behind a Custom Tab, as in.
4. Compares the first version against the reference requirements and rebuilds it where it falls short.
5. Fixes bugs found along the way and cleans up the code.

For simpler card layouts, see Build Home Page Card Components.