feat: QA fixes — Patient 360 rewrite, token refresh, call flow, UI polish

- Patient 360 page queries Patient entity with appointments, calls, leads
- Patients added to CC agent sidebar navigation
- Auto token refresh on 401 (deduplicated concurrent refreshes)
- Call desk: callDismissed flag prevents SIP race on worklist return
- Missed calls skip disposition when never answered
- Callbacks tab renamed to Leads tab
- Branch column header on missed calls tab
- F0rty2.ai link on login footer

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/pages/login.tsx

@@ -165,7 +165,7 @@ export const LoginPage = () => {
             </div>
 
             {/* Footer */}
-            <p className="mt-6 text-xs text-primary_on-brand opacity-60">Powered by FortyTwo</p>
+            <a href="https://f0rty2.ai" target="_blank" rel="noopener noreferrer" className="mt-6 text-xs text-primary_on-brand opacity-60 hover:opacity-90 transition duration-100 ease-linear">Powered by F0rty2.ai</a>
         </div>
     );
 };