Fix task row title color + add submitted date

- Title forced to --text-primary (was inheriting link color)
- Submitted date prepended before 'Submitted by' using task.submitted_at

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/pages/client/MyRequests.jsx

@@ -92,14 +92,14 @@ export default function MyRequests() {
         style={{ display: 'flex', alignItems: 'center', justifyContent: 'space-between', padding: '12px 16px', borderBottom: isLast ? 'none' : '1px solid var(--border)', textDecoration: 'none' }}
       >
         <div>
-          <span style={{ fontWeight: 600, fontSize: 13 }}>
+          <span style={{ fontWeight: 600, fontSize: 13, color: 'var(--text-primary)' }}>
             {task.title}{' '}
             <span style={{ fontWeight: 400, color: 'var(--text-muted)' }}>
               {'R' + String(task.current_version || 0).padStart(2, '0')}
             </span>
           </span>
           <div style={{ fontSize: 11, color: 'var(--text-muted)', marginTop: 2 }}>
-            Submitted by {initialSub?.submitted_by_name || 'Unknown'}
+            {task.submitted_at && `${new Date(task.submitted_at).toLocaleDateString()} · `}Submitted by {initialSub?.submitted_by_name || 'Unknown'}
             {hasRevision && ` · Last updated by ${latestSub.submitted_by_name}`}
           </div>
         </div>