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/test/setup.ts

@@ -1,23 +0,0 @@
-import '@testing-library/jest-dom'
-import { cleanup } from '@testing-library/react'
-import { afterEach } from 'vitest'
-
-// Cleanup after each test
-afterEach(() => {
-  cleanup()
-})
-
-// Mock window.matchMedia
-Object.defineProperty(window, 'matchMedia', {
-  writable: true,
-  value: (query: string) => ({
-    matches: false,
-    media: query,
-    onchange: null,
-    addListener: () => {},
-    removeListener: () => {},
-    addEventListener: () => {},
-    removeEventListener: () => {},
-    dispatchEvent: () => {},
-  }),
-})