Remove Settings and Setup pages along with their tests and related API services

- Deleted Settings.tsx and Setup.tsx pages, which included functionality for changing passwords and setting up an admin account.
- Removed associated test files for Setup page.
- Eliminated API service definitions related to proxy hosts, remote servers, import functionality, and health checks.
- Cleaned up mock data and test setup files.
- Removed configuration files for TypeScript, Vite, and Tailwind CSS.
- Deleted scripts for testing coverage, release management, Dockerfile validation, and Python compilation checks.
- Removed Sourcery pre-commit wrapper script.

frontend/src/components/__tests__/Layout.test.tsx

@@ -1,63 +0,0 @@
-import { ReactNode } from 'react'
-import { describe, it, expect } from 'vitest'
-import { render, screen } from '@testing-library/react'
-import { BrowserRouter } from 'react-router-dom'
-import Layout from '../Layout'
-import { ThemeProvider } from '../../context/ThemeContext'
-
-const renderWithProviders = (children: ReactNode) => {
-  return render(
-    <BrowserRouter>
-      <ThemeProvider>
-        {children}
-      </ThemeProvider>
-    </BrowserRouter>
-  )
-}
-
-describe('Layout', () => {
-  it('renders the application title', () => {
-    renderWithProviders(
-      <Layout>
-        <div>Test Content</div>
-      </Layout>
-    )
-
-    expect(screen.getAllByText('CPM+')[0]).toBeInTheDocument()
-  })
-
-  it('renders all navigation items', () => {
-    renderWithProviders(
-      <Layout>
-        <div>Test Content</div>
-      </Layout>
-    )
-
-    expect(screen.getByText('Dashboard')).toBeInTheDocument()
-    expect(screen.getByText('Proxy Hosts')).toBeInTheDocument()
-    expect(screen.getByText('Remote Servers')).toBeInTheDocument()
-    expect(screen.getByText('Certificates')).toBeInTheDocument()
-    expect(screen.getByText('Import Caddyfile')).toBeInTheDocument()
-    expect(screen.getByText('Settings')).toBeInTheDocument()
-  })
-
-  it('renders children content', () => {
-    renderWithProviders(
-      <Layout>
-        <div data-testid="test-content">Test Content</div>
-      </Layout>
-    )
-
-    expect(screen.getByTestId('test-content')).toBeInTheDocument()
-  })
-
-  it('displays version information', () => {
-    renderWithProviders(
-      <Layout>
-        <div>Test Content</div>
-      </Layout>
-    )
-
-    expect(screen.getByText('Version 0.1.0')).toBeInTheDocument()
-  })
-})