feat(cortex): add intake_navigeer navigation handler (E5.S2)

- Add intake intents to action-parser schema and routing
- Add navigation handler in command-center for intake_navigeer intent
- Navigate to patient intakes page with toast feedback
- Update bouwplan: E5 now complete (6/7 epics done)

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

lib/cortex/action-parser.ts

@@ -21,6 +21,11 @@ const ActionSchema = z.object({
     'create_appointment',
     'cancel_appointment',
     'reschedule_appointment',
+    // Intake intents (MVP)
+    'intake_status',
+    'intake_navigeer',
+    'risico_query',
+    'diagnose_query',
     'unknown',
   ]),
   entities: z.object({
@@ -77,6 +82,10 @@ const ActionSchema = z.object({
         'create_appointment',
         'cancel_appointment',
         'reschedule_appointment',
+        // Intake blocks (MVP)
+        'intake_status',
+        'risico_query',
+        'diagnose_query',
         'fallback',
         'patient-dashboard',
       ]),
@@ -368,6 +377,33 @@ export function routeIntentToArtifact(
         prefill: entities,
       };
 
+    // Intake intents (MVP)
+    case 'intake_status':
+      return {
+        type: 'intake_status',
+        title: 'Intake Status',
+        prefill: entities,
+      };
+
+    case 'risico_query':
+      return {
+        type: 'risico_query',
+        title: 'Risicotaxatie',
+        prefill: entities,
+      };
+
+    case 'diagnose_query':
+      return {
+        type: 'diagnose_query',
+        title: 'Diagnoses',
+        prefill: entities,
+      };
+
+    case 'intake_navigeer':
+      // Navigation intent - handled separately in CommandCenter
+      // Returns null to trigger navigation instead of artifact
+      return null;
+
     case 'unknown':
       // Unknown intent - show fallback picker
       return {