admin UI UX update

Co-authored-by: Copilot <copilot@github.com>

admin_ui/src/components/Login.jsx

@@ -22,19 +22,6 @@ export default function Login({ onLogin }) {
     } finally { setLoading(false) }
   }
 
-  const devToken = async () => {
-    setError(null)
-    setLoading(true)
-    try {
-      const res = await authClient.post('/dev/token', { userId: 1, userCode: 42 })
-      const token = res.data.token
-      const me = await authClient.get('/me', { headers: { Authorization: `Bearer ${token}` } })
-      onLogin(token, me.data.user)
-    } catch (err) {
-      setError(err.response?.data?.error || 'dev_token_failed')
-    } finally { setLoading(false) }
-  }
-
   return (
     <div className="login">
       <h2>Admin Login</h2>
@@ -50,12 +37,6 @@ export default function Login({ onLogin }) {
         <button type="submit" disabled={loading}>{loading ? 'Please wait...' : 'Login'}</button>
         {error && <div className="error">{error}</div>}
       </form>
-      <p>Be sure `ADMIN_USER_CODES` contains your `userCode` for admin actions.</p>
-      <hr />
-      <div>
-        <button onClick={devToken} disabled={loading}>Get Dev Token (if available)</button>
-        <div style={{fontSize:12, marginTop:6}}>Uses `/dev/token` on the auth API for quick local testing.</div>
-      </div>
     </div>
   )
 }