massive refactor toDrop cascadeStudio and add CadQuery + OpenSCAD

resolves #400

app/web/src/components/ProjectCell/ProjectCell.test.tsx

@@ -0,0 +1,26 @@
+import { render, screen } from '@redwoodjs/testing'
+import { Loading, Empty, Failure, Success } from './ProjectCell'
+import { standard } from './ProjectCell.mock'
+
+describe('ProjectCell', () => {
+  test('Loading renders successfully', () => {
+    render(<Loading />)
+    // Use screen.debug() to see output
+    expect(screen.getByText('Loading...')).toBeInTheDocument()
+  })
+
+  test('Empty renders successfully', async () => {
+    render(<Empty />)
+    expect(screen.getByText('Empty')).toBeInTheDocument()
+  })
+
+  test('Failure renders successfully', async () => {
+    render(<Failure error={new Error('Oh no')} />)
+    expect(screen.getByText(/Oh no/i)).toBeInTheDocument()
+  })
+
+  test('Success renders successfully', async () => {
+    render(<Success project={standard().project} />)
+    expect(screen.getByText(/42/i)).toBeInTheDocument()
+  })
+})