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/components/layout/sidebar.tsx

@@ -70,6 +70,7 @@ const getNavSections = (role: string): NavSection[] => {
             { label: 'Call Center', items: [
                 { label: 'Call Desk', href: '/', icon: IconPhone },
                 { label: 'Call History', href: '/call-history', icon: IconClockRewind },
+                { label: 'Patients', href: '/patients', icon: IconHospitalUser },
                 { label: 'My Performance', href: '/my-performance', icon: IconChartMixed },
             ]},
         ];