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>

components/cortex/artifacts/artifact-container.tsx

@@ -22,6 +22,8 @@ import { FallbackPicker } from '../blocks/fallback-picker';
 import { IntakeStatusBlock } from '../blocks/intake-status-block';
 import { RisicoBlock } from '../blocks/risico-block';
 import { DiagnoseBlock } from '../blocks/diagnose-block';
+// No Show casus
+import { NoShowDocumentBlock } from '../blocks/noshow-document-block';
 import { APPOINTMENT_TYPES, type AppointmentTypeCode, type LocationClassCode } from '@/app/epd/agenda/types';
 import type { Artifact, BlockType } from '@/stores/cortex-store';
 import { parseRelativeDate, isDateRange } from '@/lib/cortex/date-time-parser';
@@ -205,6 +207,17 @@ function renderArtifactBlock(artifact: Artifact, onCloseArtifact: (id: string) =
       return <RisicoBlock key={artifact.id} prefill={artifact.prefill} />;
     case 'diagnose_query':
       return <DiagnoseBlock key={artifact.id} prefill={artifact.prefill} />;
+    // No Show casus
+    case 'register_no_show': {
+      const nsPrefill = artifact.prefill as {
+        documentId: string;
+        content: string;
+        title: string;
+        originalContent?: string;
+        rescriptWarning?: string;
+      };
+      return <NoShowDocumentBlock key={artifact.id} prefill={nsPrefill} />;
+    }
     default:
       return (
         <div className="p-4 text-slate-500">
@@ -250,6 +263,9 @@ export function getArtifactTitle(type: BlockType, prefill?: any): string {
       return 'Risicotaxatie';
     case 'diagnose_query':
       return 'Diagnoses';
+    // No Show casus
+    case 'register_no_show':
+      return prefill?.title ? `Brief — ${prefill.title}` : 'Huisartsbrief';
     default:
       return 'Artifact';
   }