Display Julia's voice responses in chat

When user speaks via voice mode, both their question and Julia's
response are now shown in the text chat. This provides a unified
conversation history for both voice and text interactions.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

app/(tabs)/chat.tsx

@@ -24,6 +24,7 @@ import { SafeAreaView } from 'react-native-safe-area-context';
 import { useRouter, useFocusEffect } from 'expo-router';
 import { api } from '@/services/api';
 import { useBeneficiary } from '@/contexts/BeneficiaryContext';
+import { useVoiceTranscript } from '@/contexts/VoiceTranscriptContext';
 import { AppColors, BorderRadius, FontSizes, Spacing } from '@/constants/theme';
 import type { Message, Beneficiary } from '@/types';
 
@@ -109,6 +110,7 @@ function normalizeQuestion(userMessage: string): string {
 export default function ChatScreen() {
   const router = useRouter();
   const { currentBeneficiary, setCurrentBeneficiary } = useBeneficiary();
+  const { transcript, hasNewTranscript, markTranscriptAsShown, getTranscriptAsMessages } = useVoiceTranscript();
 
   // Helper to create initial message with beneficiary name
   const createInitialMessage = useCallback((beneficiaryName?: string | null): Message => ({
@@ -195,6 +197,26 @@ export default function ChatScreen() {
     }
   }, [deploymentName, createInitialMessage]);
 
+  // Add voice transcript messages to chat when new ones arrive
+  useEffect(() => {
+    if (hasNewTranscript && transcript.length > 0) {
+      const voiceMessages = getTranscriptAsMessages();
+      if (voiceMessages.length > 0) {
+        setMessages(prev => {
+          // Filter out messages that are already in the chat (by id)
+          const existingIds = new Set(prev.map(m => m.id));
+          const newMessages = voiceMessages.filter(m => !existingIds.has(m.id));
+          if (newMessages.length > 0) {
+            console.log('[Chat] Adding', newMessages.length, 'voice messages to chat');
+            return [...prev, ...newMessages];
+          }
+          return prev;
+        });
+      }
+      markTranscriptAsShown();
+    }
+  }, [hasNewTranscript, transcript, getTranscriptAsMessages, markTranscriptAsShown]);
+
   // Load beneficiaries
   const loadBeneficiaries = useCallback(async () => {
     setLoadingBeneficiaries(true);

contexts/VoiceContext.tsx

@@ -19,6 +19,7 @@ import React, {
 } from 'react';
 import * as Speech from 'expo-speech';
 import { api } from '@/services/api';
+import { useVoiceTranscript } from './VoiceTranscriptContext';
 
 // WellNuo API configuration (same as chat.tsx)
 const API_URL = 'https://eluxnetworks.net/function/well-api/api';
@@ -146,6 +147,9 @@ export function VoiceProvider({ children }: { children: ReactNode }) {
   const [isListening, setIsListening] = useState(false);
   const [isSpeaking, setIsSpeaking] = useState(false);
 
+  // Voice transcript context for chat display
+  const { addTranscriptEntry } = useVoiceTranscript();
+
   // API token cache
   const apiTokenRef = useRef<string | null>(null);
 
@@ -207,6 +211,9 @@ export function VoiceProvider({ children }: { children: ReactNode }) {
       setStatus('processing');
       setError(null);
 
+      // Add user message to transcript for chat display
+      addTranscriptEntry('user', trimmedText);
+
       try {
         // Get API token
         const token = await getWellNuoToken();
@@ -246,6 +253,9 @@ export function VoiceProvider({ children }: { children: ReactNode }) {
           console.log('[VoiceContext] API response:', responseText.slice(0, 100) + '...');
           setLastResponse(responseText);
 
+          // Add Julia's response to transcript for chat display
+          addTranscriptEntry('assistant', responseText);
+
           // Speak the response
           await speak(responseText);
 
@@ -266,7 +276,7 @@ export function VoiceProvider({ children }: { children: ReactNode }) {
         return null;
       }
     },
-    [getWellNuoToken]
+    [getWellNuoToken, addTranscriptEntry]
   );
 
   /**