feat(cortex): add Intake Blocks MVP for voice/text commands

Adds 4 new intents for intake workflow:
- intake_status: shows completion percentage and section checklist
- intake_navigeer: navigation to specific intake tabs
- risico_query: displays risk assessments with severity indicators
- diagnose_query: shows primary/secondary diagnoses

New components:
- IntakeStatusBlock, RisicoBlock, DiagnoseBlock
- Shared block components (BlockLoading, BlockError, BlockEmpty, BlockSection, BlockItem, BlockFooter)
- useBlockData and useIntakeContext hooks

New API routes:
- GET /api/cortex/intake/status
- GET /api/cortex/intake/risico
- GET /api/cortex/intake/diagnose

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

lib/cortex/intent-labels.ts

@@ -20,6 +20,11 @@ export const INTENT_LABELS: Record<CortexIntent, string> = {
   create_appointment: 'Afspraak maken',
   cancel_appointment: 'Afspraak annuleren',
   reschedule_appointment: 'Afspraak verzetten',
+  // Intake intents (MVP)
+  intake_status: 'Intake status',
+  intake_navigeer: 'Naar intake sectie',
+  risico_query: 'Risicotaxatie',
+  diagnose_query: 'Diagnoses',
   unknown: 'Onbekend',
 };