fix: remove demo login hints from LoginPage form

nest-front/src/pages/public/LoginPage.tsx

@@ -58,39 +58,7 @@ export default function LoginPage() {
           </div>
         </div>
 
-        <form onSubmit={handleSubmit} noValidate className="crt-box" style={{ padding: '2rem' }}>
+        <form onSubmit={handleSubmit}>
-          {/* Demo hint */}
-          <div style={{ background: 'rgba(217,119,6,0.08)', border: '1px solid rgba(217,119,6,0.2)', padding: '0.75rem', marginBottom: '1.5rem', borderRadius: '6px' }}>
-            <div style={{ fontFamily: 'var(--font-mono)', color: 'var(--color-amber)', fontSize: '0.7rem', letterSpacing: '0.05em', marginBottom: '0.4rem' }}>
-              [DEMO] Quick login emails:
-            </div>
-            {[
-              { label: 'Dev/Admin', email: 'kestrel@crowmate.dev' },
-              { label: 'Com Staff', email: 'vesper@crowmate.dev' },
-              { label: 'User', email: 'glitch@mail.com' },
-            ].map(({ label, email: e }) => (
-              <button
-                key={e}
-                type="button"
-                onClick={() => { setEmail(e); setPassword('password'); }}
-                style={{
-                  background: 'transparent',
-                  border: 'none',
-                  color: 'var(--color-text-muted)',
-                  cursor: 'pointer',
-                  fontFamily: 'var(--font-mono)',
-                  fontSize: '0.65rem',
-                  display: 'block',
-                  textAlign: 'left',
-                  padding: '0.1rem 0',
-                  width: '100%',
-                }}
-              >
-                &gt; {label}: {e}
-              </button>
-            ))}
-          </div>
-
           {errors.form && (
             <div style={{ background: 'rgba(220,38,38,0.1)', border: '1px solid rgba(220,38,38,0.3)', color: 'var(--color-red)', fontFamily: 'var(--font-mono)', fontSize: '0.78rem', padding: '0.75rem', marginBottom: '1.25rem', borderRadius: '6px' }}>
               [ERROR] {errors.form}