fix: add missing sign-in input testids (ISS-107) CI

components/SignInScreen.tsx

@@ -54,9 +54,9 @@ export default function SignInScreen({ onAuthed }: SignInScreenProps) {
 
       <form data-testid="sign-in-form" onSubmit={(e) => void submit(e, '/api/login')}>
         <label htmlFor="sign-in-username">Username</label>
-        <input id="sign-in-username" name="username" autoComplete="username" required />
+        <input id="sign-in-username" data-testid="sign-in-username" name="username" autoComplete="username" required />
         <label htmlFor="sign-in-password">Password</label>
-        <input id="sign-in-password" name="password" type="password" autoComplete="current-password" required />
+        <input id="sign-in-password" data-testid="sign-in-password" name="password" type="password" autoComplete="current-password" required />
         <button type="submit" data-testid="sign-in-submit" className="pane-btn" disabled={busy}>
           Sign in
         </button>