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/reflex-classifier.ts

@@ -212,6 +212,27 @@ const INTENT_PATTERNS: Record<Exclude<CortexIntent, 'unknown'>, PatternConfig[]>
     { pattern: /^diagnose[ns]?\s+(van|voor)\s+\w+/i, weight: 0.95 },
     { pattern: /^icd\s*-?\s*10/i, weight: 0.8 },
   ],
+
+  // =========================================================================
+  // No Show casus
+  // =========================================================================
+  register_no_show: [
+    // Exacte no-show varianten
+    { pattern: /no.?show/i, weight: 1.0 },
+
+    // "Niet verschenen" varianten
+    { pattern: /niet\s+verschenen/i, weight: 0.95 },
+    { pattern: /niet\s+gekomen/i, weight: 0.95 },
+    { pattern: /niet\s+op\s+komen\s+dagen/i, weight: 0.95 },
+
+    // "Afwezig" + context
+    { pattern: /afwezig\s+(bij|voor)\s+(de\s+)?afspraak/i, weight: 0.9 },
+    { pattern: /pati[eë]nt\s+afwezig/i, weight: 0.85 },
+
+    // Werkwoordvormen
+    { pattern: /komt?\s+niet\s+(op|naar)/i, weight: 0.85 },
+    { pattern: /is\s+er\s+niet\s+(geweest)?/i, weight: 0.7 },
+  ],
 };
 
 /**