add copy conversation to clipboard button in settings

components/SettingsPanel.tsx

@@ -85,6 +85,18 @@ export default function SettingsPanel() {
     a.click();
   }
 
+  async function copyConversation() {
+    const messages = useStore.getState().messages;
+    if (!messages.length) { alert('No messages to copy.'); return; }
+    let md = `# Conversation Export\n\nExported: ${new Date().toLocaleString()}\n\n---\n\n`;
+    messages.forEach(m => {
+      md += `**${m.role === 'user' ? 'You' : 'Aaron AI'}**\n\n${m.content}\n\n`;
+      if (m.sources?.length) md += `*Sources: ${m.sources.join(', ')}*\n\n`;
+      md += '---\n\n';
+    });
+    await navigator.clipboard.writeText(md);
+  }
+
   async function logout() {
     await auth.logout();
     window.location.href = '/login';
@@ -218,8 +230,11 @@ export default function SettingsPanel() {
                 {status?.conversation_count || 0}
               </span>
             </Row>
-            <Row label="Export current" desc="Download as markdown">
+            <Row label="Export current" desc="Download or copy as markdown">
+              <div style={{ display: 'flex', gap: '6px' }}>
                 <SBtn onClick={exportConversation}>Export</SBtn>
+                <SBtn onClick={copyConversation}>Copy</SBtn>
+              </div>
             </Row>
             <Row label="Clear all" desc="Permanently delete history">
               <SBtn danger onClick={clearAll}>Clear</SBtn>