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>

stores/cortex-store.ts

@@ -24,6 +24,16 @@ export type Patient = Database['public']['Tables']['patients']['Row'];
 // Store-specific types (not in lib/cortex/types.ts)
 export type BlockType = Exclude<CortexIntent, 'unknown'> | 'fallback' | 'patient-dashboard';
 
+// No-show flow state machine
+export type NoShowStep = 'idle' | 'waiting_cancel' | 'waiting_brief' | 'brief_open' | 'done';
+
+export interface NoShowFlowState {
+  step: NoShowStep;
+  appointmentId: string | null;
+  documentId: string | null;
+  originalContent: string | null;
+}
+
 // Chat entities - simplified version for AI responses (strings, not Dates)
 // This differs from ExtractedEntities in lib/cortex/types.ts which uses Date objects
 // All properties are optional to match Zod schema flexibility
@@ -79,8 +89,9 @@ export interface ChatAction {
 }
 
 // Block prefill data - uses ChatEntities (string-based) for UI prefilling
+// Index signature allows block-specific extra fields (e.g. documentId for NoShowDocumentBlock)
 export interface BlockPrefillData extends ChatEntities {
-  // Additional prefill data specific to blocks
+  [key: string]: unknown;
 }
 
 // Artifact type (E4 - Multiple artifacts support)
@@ -145,6 +156,10 @@ interface CortexStore {
   // V2 Clarification state
   pendingClarification: ClarificationRequest | null;
 
+  // No-show flow state
+  noShowFlow: NoShowFlowState;
+  isNoShowProcessing: boolean;
+
   // Context actions
   setActivePatient: (patient: Patient | null) => void;
   setShift: (shift: ShiftType) => void;
@@ -202,6 +217,12 @@ interface CortexStore {
   setPendingClarification: (clarification: ClarificationRequest | null) => void;
   resolveClarification: (selectedOption: string) => void;
 
+  // No-show flow actions
+  setNoShowStep: (step: NoShowStep) => void;
+  setNoShowContext: (ctx: Partial<Omit<NoShowFlowState, 'step'>>) => void;
+  setNoShowProcessing: (processing: boolean) => void;
+  resetNoShowFlow: () => void;
+
   // Reset
   reset: () => void;
 }
@@ -233,6 +254,14 @@ const initialState = {
   chainHistory: [] as IntentChain[],
   suggestions: [] as NudgeSuggestion[],
   pendingClarification: null as ClarificationRequest | null,
+  // No-show flow state
+  noShowFlow: {
+    step: 'idle',
+    appointmentId: null,
+    documentId: null,
+    originalContent: null,
+  } as NoShowFlowState,
+  isNoShowProcessing: false,
 };
 
 // Create the store
@@ -576,6 +605,39 @@ export const useCortexStore = create<CortexStore>()(
           'resolveClarification'
         ),
 
+      // No-show flow actions
+      setNoShowStep: (step) =>
+        set(
+          (state) => ({ noShowFlow: { ...state.noShowFlow, step } }),
+          false,
+          'setNoShowStep'
+        ),
+
+      setNoShowContext: (ctx) =>
+        set(
+          (state) => ({ noShowFlow: { ...state.noShowFlow, ...ctx } }),
+          false,
+          'setNoShowContext'
+        ),
+
+      setNoShowProcessing: (processing) =>
+        set({ isNoShowProcessing: processing }, false, 'setNoShowProcessing'),
+
+      resetNoShowFlow: () =>
+        set(
+          {
+            noShowFlow: {
+              step: 'idle',
+              appointmentId: null,
+              documentId: null,
+              originalContent: null,
+            },
+            isNoShowProcessing: false,
+          },
+          false,
+          'resetNoShowFlow'
+        ),
+
       // Reset
       reset: () => set(initialState, false, 'reset'),
     }),