Fix voice input for iOS Safari and prevent infinite loop

- Remove temperature parameter from GPT-5-mini activity extraction (not supported)
- Add classification state to useVoiceInput hook to avoid duplicate API calls
- Prevent infinite loop in VoiceFloatingButton by tracking lastClassifiedTranscript
- Use classification from backend directly instead of making second request
- iOS Safari now successfully transcribes with Azure Whisper and classifies with GPT-5-mini

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

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

maternal-web/hooks/useVoiceInput.ts

@@ -1,4 +1,5 @@
 import { useState, useEffect, useCallback, useRef } from 'react';
+import { tokenStorage } from '@/lib/utils/tokenStorage';
 
 export interface VoiceInputResult {
   transcript: string;
@@ -10,6 +11,7 @@ export interface VoiceInputState {
   isListening: boolean;
   isSupported: boolean;
   transcript: string;
+  classification: any | null;
   error: string | null;
   usesFallback: boolean;
 }
@@ -25,6 +27,7 @@ export function useVoiceInput() {
     isListening: false,
     isSupported: false,
     transcript: '',
+    classification: null,
     error: null,
     usesFallback: false,
   });
@@ -148,9 +151,19 @@ export function useVoiceInput() {
           formData.append('audio', audioBlob, `recording.${extension}`);
 
           console.log('[Voice] Sending to backend for transcription...');
-          const response = await fetch('/api/voice/transcribe', {
+
+          // Get auth token and API base URL
+          const token = tokenStorage.getAccessToken();
+          const API_BASE_URL = process.env.NEXT_PUBLIC_API_URL || 'http://localhost:3020';
+          const headers: HeadersInit = {};
+          if (token) {
+            headers['Authorization'] = `Bearer ${token}`;
+          }
+
+          const response = await fetch(`${API_BASE_URL}/api/v1/voice/transcribe`, {
             method: 'POST',
             body: formData,
+            headers,
           });
 
           console.log('[Voice] Transcription response status:', response.status);
@@ -162,6 +175,7 @@ export function useVoiceInput() {
               ...prev,
               isListening: false,
               transcript: data.transcript,
+              classification: data.classification || null,
             }));
           } else {
             console.error('[Voice] Transcription failed:', data);
@@ -169,6 +183,7 @@ export function useVoiceInput() {
               ...prev,
               isListening: false,
               error: data.message || 'Failed to transcribe audio',
+              classification: null,
             }));
           }
         } catch (error) {
@@ -358,6 +373,7 @@ export function useVoiceInput() {
     setState(prev => ({
       ...prev,
       transcript: '',
+      classification: null,
       error: null,
     }));
   }, []);