feat: Phase 2 — missed call queue, login redesign, button fix

- Missed call queue with FIFO auto-assignment, dedup, SLA tracking
- Status sub-tabs (Pending/Attempted/Completed/Invalid) in worklist
- missedCallId passed through disposition flow for callback tracking
- Login page redesigned: centered white card on blue background
- Disposition button changed to content-width
- NavAccountCard popover close fix on menu item click

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

src/components/call-desk/active-call-card.tsx

@@ -26,6 +26,8 @@ type PostCallStage = 'disposition' | 'appointment' | 'follow-up' | 'done';
 interface ActiveCallCardProps {
     lead: Lead | null;
     callerPhone: string;
+    missedCallId?: string | null;
+    onCallComplete?: () => void;
 }
 
 const formatDuration = (seconds: number): string => {
@@ -34,7 +36,7 @@ const formatDuration = (seconds: number): string => {
     return `${m}:${s.toString().padStart(2, '0')}`;
 };
 
-export const ActiveCallCard = ({ lead, callerPhone }: ActiveCallCardProps) => {
+export const ActiveCallCard = ({ lead, callerPhone, missedCallId, onCallComplete }: ActiveCallCardProps) => {
     const { callState, callDuration, callUcid, isMuted, isOnHold, answer, reject, hangup, toggleMute, toggleHold } = useSip();
     const setCallState = useSetAtom(sipCallStateAtom);
     const setCallerNumber = useSetAtom(sipCallerNumberAtom);
@@ -68,6 +70,7 @@ export const ActiveCallCard = ({ lead, callerPhone }: ActiveCallCardProps) => {
                 durationSec: callDuration,
                 leadId: lead?.id ?? null,
                 notes,
+                missedCallId: missedCallId ?? undefined,
             }).catch((err) => console.warn('Disposition failed:', err));
         }
 
@@ -117,6 +120,7 @@ export const ActiveCallCard = ({ lead, callerPhone }: ActiveCallCardProps) => {
         setCallerNumber(null);
         setCallUcid(null);
         setOutboundPending(false);
+        onCallComplete?.();
     };
 
     // Outbound ringing — agent initiated the call