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/ui/Input.tsx

@@ -1,41 +0,0 @@
-import { InputHTMLAttributes, forwardRef } from 'react'
-import { clsx } from 'clsx'
-
-interface InputProps extends InputHTMLAttributes<HTMLInputElement> {
-  label?: string
-  error?: string
-  helperText?: string
-}
-
-export const Input = forwardRef<HTMLInputElement, InputProps>(
-  ({ label, error, helperText, className, ...props }, ref) => {
-    return (
-      <div className="w-full">
-        {label && (
-          <label className="block text-sm font-medium text-gray-300 mb-1.5">
-            {label}
-          </label>
-        )}
-        <input
-          ref={ref}
-          className={clsx(
-            'w-full bg-gray-900 border rounded-lg px-4 py-2 text-white placeholder-gray-500 focus:outline-none focus:ring-2 transition-colors',
-            error
-              ? 'border-red-500 focus:ring-red-500'
-              : 'border-gray-700 focus:ring-blue-500 focus:border-blue-500',
-            className
-          )}
-          {...props}
-        />
-        {error && (
-          <p className="mt-1 text-sm text-red-400">{error}</p>
-        )}
-        {helperText && !error && (
-          <p className="mt-1 text-sm text-gray-500">{helperText}</p>
-        )}
-      </div>
-    )
-  }
-)
-
-Input.displayName = 'Input'