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/hooks/useProxyHosts.ts

@@ -1,55 +0,0 @@
-import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
-import {
-  getProxyHosts,
-  createProxyHost,
-  updateProxyHost,
-  deleteProxyHost,
-  ProxyHost
-} from '../api/proxyHosts';
-
-export const QUERY_KEY = ['proxy-hosts'];
-
-export function useProxyHosts() {
-  const queryClient = useQueryClient();
-
-  const query = useQuery({
-    queryKey: QUERY_KEY,
-    queryFn: getProxyHosts,
-  });
-
-  const createMutation = useMutation({
-    mutationFn: (host: Partial<ProxyHost>) => createProxyHost(host),
-    onSuccess: () => {
-      queryClient.invalidateQueries({ queryKey: QUERY_KEY });
-    },
-  });
-
-  const updateMutation = useMutation({
-    mutationFn: ({ uuid, data }: { uuid: string; data: Partial<ProxyHost> }) =>
-      updateProxyHost(uuid, data),
-    onSuccess: () => {
-      queryClient.invalidateQueries({ queryKey: QUERY_KEY });
-    },
-  });
-
-  const deleteMutation = useMutation({
-    mutationFn: (uuid: string) => deleteProxyHost(uuid),
-    onSuccess: () => {
-      queryClient.invalidateQueries({ queryKey: QUERY_KEY });
-    },
-  });
-
-  return {
-    hosts: query.data || [],
-    loading: query.isLoading,
-    error: query.error ? (query.error as Error).message : null,
-    createHost: createMutation.mutateAsync,
-    updateHost: (uuid: string, data: Partial<ProxyHost>) => updateMutation.mutateAsync({ uuid, data }),
-    deleteHost: deleteMutation.mutateAsync,
-    isCreating: createMutation.isPending,
-    isUpdating: updateMutation.isPending,
-    isDeleting: deleteMutation.isPending,
-  };
-}
-
-export type { ProxyHost };