feat: supervisor fixes — settings disabled cards, column toggle fix, hold SSE, campaign edit disabled

- SectionCard: added disabled prop (muted, non-clickable, no arrow)
- Settings hub: Clinics, Doctors, Team, Telephony, AI, Widget cards disabled
- Campaigns: edit button disabled
- Missed calls + Call recordings: column toggle blank page fixed (key-based
  Table remount forces clean React Aria collection on column change)
- Live monitor: replaced 5s polling with SSE stream for real-time active
  call updates (new/hold/unhold/disconnect reflected instantly)

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

src/pages/missed-calls.tsx

@@ -125,14 +125,15 @@ const renderCell = (call: MissedCallRecord, colId: string) => {
     }
 };
 
-const DynamicMissedCallTable = ({ calls, columns, sortDescriptor, onSortChange }: {
+const DynamicMissedCallTable = ({ calls, columns, columnKey, sortDescriptor, onSortChange }: {
     calls: MissedCallRecord[];
     columns: ColDef[];
+    columnKey: string;
     sortDescriptor: SortDescriptor;
     onSortChange: (desc: SortDescriptor) => void;
 }) => (
     <div className="flex flex-1 flex-col min-h-0 overflow-auto">
-        <Table size="sm" sortDescriptor={sortDescriptor} onSortChange={onSortChange}>
+        <Table key={columnKey} size="sm" sortDescriptor={sortDescriptor} onSortChange={onSortChange}>
             <Table.Header columns={columns}>
                 {(col) => (
                     <Table.Head
@@ -146,7 +147,7 @@ const DynamicMissedCallTable = ({ calls, columns, sortDescriptor, onSortChange }
             </Table.Header>
             <Table.Body items={calls}>
                 {(call) => (
-                    <Table.Row id={call.id} columns={columns}>
+                    <Table.Row id={call.id} columns={columns} className="group/row">
                         {(col) => (
                             <Table.Cell key={col.id}>
                                 {renderCell(call, col.id)}
@@ -274,6 +275,7 @@ export const MissedCallsPage = () => {
                     <DynamicMissedCallTable
                         calls={pagedRows}
                         columns={columnDefs.filter(c => visibleColumns.has(c.id))}
+                        columnKey={Array.from(visibleColumns).sort().join(',')}
                         sortDescriptor={sortDescriptor}
                         onSortChange={setSortDescriptor}
                     />