Remove all test dependencies and configurations

- Removed test script from package.json
- Removed testing dependencies (@testing-library/react, vitest, jsdom)
- Deleted test directory and vitest.config.ts
- Updated package-lock.json to reflect changes
- Build still works perfectly without test dependencies

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: tinkle-community <tinklefund@gmail.com>

web/src/test/test-utils.tsx

@@ -1,18 +0,0 @@
-import { ReactElement } from 'react'
-import { render, RenderOptions } from '@testing-library/react'
-
-/**
- * Custom render function that wraps components with common providers
- */
-export function renderWithProviders(
-  ui: ReactElement,
-  options?: Omit<RenderOptions, 'wrapper'>
-) {
-  return render(ui, { ...options })
-}
-
-// Re-export everything from @testing-library/react
-export * from '@testing-library/react'
-
-// Override render with our custom version
-export { renderWithProviders as render }