feat(cortex): update chat/nudge flow, deepgram streaming and agenda form

Refines chat panel, nudge messages and artifact rendering, reworks
deepgram token/streaming handling, and adds test tooling deps
(playwright, cypress) to package.json.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

lib/cortex/action-parser.ts

@@ -26,6 +26,8 @@ const ActionSchema = z.object({
     'intake_navigeer',
     'risico_query',
     'diagnose_query',
+    // No Show casus
+    'register_no_show',
     'unknown',
   ]),
   entities: z.object({
@@ -88,6 +90,8 @@ const ActionSchema = z.object({
         'diagnose_query',
         'fallback',
         'patient-dashboard',
+        // No Show casus
+        'register_no_show',
       ]),
       prefill: z.record(z.string(), z.any()),
     })
@@ -253,6 +257,9 @@ export function getDefaultConfirmationMessage(intent: CortexIntent, entities: Re
     case 'overdracht':
       return 'Ik bereid de overdracht voor.';
 
+    case 'register_no_show':
+      return 'Ik registreer de no show en controleer de agenda op declarabiliteit.';
+
     default:
       return 'Ik help je verder.';
   }
@@ -404,6 +411,11 @@ export function routeIntentToArtifact(
       // Returns null to trigger navigation instead of artifact
       return null;
 
+    case 'register_no_show':
+      // Artifact opened via handleNoShowRescriptStep in chat-panel.tsx after API calls —
+      // not via generic routing (needs documentId + rescripted content from API response)
+      return null;
+
     case 'unknown':
       // Unknown intent - show fallback picker
       return {