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/demand/index.ts

@@ -0,0 +1,11 @@
+export { ConfidenceFieldBadge } from './ConfidenceFieldBadge'
+export { CriteriaReviewPanel } from './CriteriaReviewPanel'
+export { ExtractedFieldRow } from './ExtractedFieldRow'
+export { FollowUpPanel } from './FollowUpPanel'
+export { FollowUpQuestionCard } from './FollowUpQuestionCard'
+export { NeedBuilderErrorState } from './NeedBuilderErrorState'
+export { NeedBuilderProgress } from './NeedBuilderProgress'
+export { NeedCardPreview } from './NeedCardPreview'
+export { NeedInput } from './NeedInput'
+export { VoiceNeedInput } from './VoiceNeedInput'
+export { WeightingEditor } from './WeightingEditor'