feat: remove Administration workspace — keep only Verwaltung + Suche

- Delete all ops page components (ReviewQueue, AIMonitoring, Governance,
  SourceMonitoring, ActivityTimeline, SignalPipeline)
- Remove OPERATIONS workspace from AppShell config, nav order, path detection
- Remove all /ops/* routes from App.tsx
- Remove WorkspaceType.OPERATIONS from allowedWorkspaces in authService,
  sessionStore, permissions
- Keep MarketIntelligence page (already moved to /supply/market-intelligence)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.claude/worktrees/agent-a82a3716/src/components/layout/OrganizationContextBadge.tsx

@@ -0,0 +1,19 @@
+import { Chip } from '@mui/material'
+import { Building2 } from 'lucide-react'
+import { useSessionStore } from '../../stores/sessionStore'
+
+export function OrganizationContextBadge() {
+  const { currentUser } = useSessionStore()
+
+  if (!currentUser?.organizationName) return null
+
+  return (
+    <Chip
+      size="small"
+      variant="outlined"
+      icon={<Building2 size={12} color="#64748b" />}
+      label={currentUser.organizationName}
+      sx={{ fontSize: '0.7rem', height: 22, color: '#64748b', borderColor: '#e2e8f0' }}
+    />
+  )
+}