feat: notification bell in PageHeader + remove wasted top bar row for supervisors

- PageHeader: renders NotificationBell when isAdmin — bell now appears
  on every page that uses PageHeader (leads, contacts, appointments,
  patients, call history, missed calls, call recordings, live monitor,
  team performance, settings)
- app-shell: top bar row only renders for agents (network indicator +
  status toggle). Supervisors no longer see a wasted empty row.
- Call Recordings: TopBar → PageHeader with badge + info icon
- Live Monitor: TopBar → PageHeader with badge + info icon
- Team Performance: TopBar → PageHeader with info icon
- Settings: TopBar → PageHeader with info icon
- Missed Calls: underline tabs → custom pills (consistent with all pages)
- Desktop overlay app-shell synced with same changes

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

src/pages/call-recordings.tsx

@@ -9,7 +9,7 @@ import { Badge } from '@/components/base/badges/badges';
 import { Input } from '@/components/base/input/input';
 import { Table } from '@/components/application/table/table';
 import { PaginationPageDefault } from '@/components/application/pagination/pagination';
-import { TopBar } from '@/components/layout/top-bar';
+import { PageHeader } from '@/components/layout/page-header';
 import { ColumnToggle, useColumnVisibility } from '@/components/application/table/column-toggle';
 import { PhoneActionCell } from '@/components/call-desk/phone-action-cell';
 import { RecordingAnalysisSlideout } from '@/components/call-desk/recording-analysis';
@@ -239,18 +239,19 @@ export const CallRecordingsPage = () => {
 
     return (
         <>
-            <TopBar title="Call Recordings" />
-            <div className="flex flex-1 flex-col overflow-hidden">
-                {/* Toolbar */}
-                <div className="flex shrink-0 items-center justify-between border-b border-secondary px-6 py-3">
-                    <span className="text-sm text-tertiary">{filtered.length} recordings</span>
-                    <div className="flex items-center gap-3">
+            <PageHeader
+                title="Call Recordings"
+                badge={filtered.length}
+                infoText="All call recordings with AI analysis, dispositions, and playback."
+                controls={
+                    <>
                         <ColumnToggle columns={columnDefs} visibleColumns={visibleColumns} onToggle={toggleColumn} />
                         <div className="w-56">
                             <Input placeholder="Search agent, phone, disposition..." icon={SearchLg} size="sm" value={search} onChange={handleSearch} />
                         </div>
-                    </div>
-                </div>
+                    </>
+                }
+            />
 
                 {/* Table */}
                 <div className="flex flex-1 flex-col min-h-0 overflow-hidden px-4 pt-3">