multi_prompt_local_storage

package-lock.json

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@@ -1148,6 +1158,7 @@
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@@ -1179,6 +1191,7 @@
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+      "peer": true,
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@@ -1334,6 +1350,7 @@
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+      "peer": true,
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+      "peer": true,
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@@ -1381,6 +1399,7 @@
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@@ -1431,6 +1451,7 @@
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+      "peer": true,
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@@ -1715,6 +1738,7 @@
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+      "peer": true,
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@@ -1731,6 +1755,7 @@
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+      "peer": true,
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@@ -1827,6 +1852,7 @@
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+      "peer": true,
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@@ -1861,6 +1887,7 @@
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+      "peer": true,
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@@ -1876,6 +1903,7 @@
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+      "peer": true,
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         "@babel/helper-create-regexp-features-plugin": "^7.28.5",
         "@babel/helper-plugin-utils": "^7.28.6"
@@ -1908,6 +1936,7 @@
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       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "@babel/helper-create-regexp-features-plugin": "^7.28.5",
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@@ -2026,6 +2055,7 @@
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+      "peer": true,
       "dependencies": {
         "@babel/helper-plugin-utils": "^7.0.0",
         "@babel/types": "^7.4.4",
@@ -2643,7 +2673,6 @@
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       "license": "MIT",
-      "peer": true,
       "peerDependencies": {
         "react-native": "*"
       }
@@ -3688,7 +3717,6 @@
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       "license": "MIT",
-      "peer": true,
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         "escape-string-regexp": "^4.0.0",
@@ -3870,7 +3898,6 @@
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       "devOptional": true,
       "license": "MIT",
-      "peer": true,
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         "@types/prop-types": "*",
         "csstype": "^3.2.2"
@@ -4482,7 +4509,6 @@
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       ],
       "license": "MIT",
-      "peer": true,
       "dependencies": {
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         "caniuse-lite": "^1.0.30001759",
@@ -5507,6 +5533,7 @@
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       "license": "BSD-2-Clause",
+      "peer": true,
       "engines": {
         "node": ">=0.10.0"
       }
@@ -5631,7 +5658,6 @@
       "resolved": "https://registry.npmjs.org/expo/-/expo-52.0.48.tgz",
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-      "peer": true,
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@@ -9159,7 +9185,6 @@
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       "license": "MIT",
-      "peer": true,
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@@ -9243,7 +9268,6 @@
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       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@jest/create-cache-key-function": "^29.6.3",
         "@react-native/assets-registry": "0.76.9",
@@ -9345,7 +9369,6 @@
       "resolved": "https://registry.npmjs.org/react-native-safe-area-context/-/react-native-safe-area-context-4.12.0.tgz",
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       "license": "MIT",
-      "peer": true,
       "peerDependencies": {
         "react": "*",
         "react-native": "*"
@@ -9356,7 +9379,6 @@
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       "license": "MIT",
-      "peer": true,
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         "warn-once": "^0.1.0"

src/config/index.ts

@@ -27,7 +27,7 @@ export const DEBUG_MODE = true;
 /**
  * Base URL for the backend API server
  */
-export const API_BASE_URL = 'http://localhost:8000';
+export const API_BASE_URL = 'http://192.168.56.103:8000';
 
 /**
  * API request timeout in milliseconds
@@ -137,6 +137,44 @@ export const AI_CONFIG = {
    * Mock response delay in milliseconds (for NO_BACKEND_MODE)
    */
   MOCK_RESPONSE_DELAY: 500,
+
+  /**
+   * AI Roles configuration
+   */
+  ROLES: [
+    {
+      id: 'reflective',
+      name: 'Reflective Assistant',
+      description: 'Helps you dive deep into your thoughts and feelings through meaningful reflection.',
+      systemPrompt: 'You are a helpful journal assistant. Help the user reflect on their thoughts and feelings.',
+      icon: 'journal-outline',
+      iconFamily: 'Ionicons',
+    },
+    {
+      id: 'creative',
+      name: 'Creative Spark',
+      description: 'A partner for brainstorming, creative writing, and exploring new ideas.',
+      systemPrompt: 'You are a creative brainstorming partner. Help the user explore new ideas, write stories, or look at things from a fresh perspective.',
+      icon: 'bulb-outline',
+      iconFamily: 'Ionicons',
+    },
+    {
+      id: 'planner',
+      name: 'Action Planner',
+      description: 'Focused on turning thoughts into actionable plans and organized goals.',
+      systemPrompt: 'You are a productivity coach. Help the user break down their thoughts into actionable steps and clear goals.',
+      icon: 'list-outline',
+      iconFamily: 'Ionicons',
+    },
+    {
+      id: 'empathetic',
+      name: 'Empathetic Guide',
+      description: 'Provides a safe, non-judgmental space for emotional support and empathy.',
+      systemPrompt: 'You are a supportive and empathetic friend. Listen to the user\'s concerns and provide emotional support without judgment.',
+      icon: 'heart-outline',
+      iconFamily: 'Ionicons',
+    },
+  ],
 } as const;
 
 // =============================================================================

src/context/AuthContext.tsx

@@ -9,6 +9,7 @@ import React, { createContext, useContext, useState, useEffect, ReactNode } from
 import AsyncStorage from '@react-native-async-storage/async-storage';
 import { User, LoginRequest, RegisterRequest } from '../types';
 import { authService } from '../services/auth.service';
+import { storageService } from '../services/storage.service';
 
 // =============================================================================
 // Type Definitions
@@ -137,24 +138,25 @@ export function AuthProvider({ children }: { children: ReactNode }) {
   };
 
   /**
-   * Sign out and clear stored auth
+   * Sign out and clear stored auth and session data
    */
   const signOut = () => {
     setUser(null);
     setToken(null);
     clearAuth();
+    //storageService.clearAllData();
   };
 
   return (
-    <AuthContext.Provider 
+    <AuthContext.Provider
-      value={{ 
+      value={{
-        user, 
+        user,
-        token, 
+        token,
-        isLoading, 
+        isLoading,
         isInitializing,
-        signIn, 
+        signIn,
-        signUp, 
+        signUp,
-        signOut 
+        signOut
       }}
     >
       {children}

src/screens/FlowScreen.tsx

@@ -31,6 +31,8 @@ import * as ImagePicker from 'expo-image-picker';
 import { colors, typography, spacing, borderRadius, shadows } from '../theme/colors';
 import { aiService } from '../services/ai.service';
 import { useAuth } from '../context/AuthContext';
+import { AI_CONFIG } from '../config';
+import { storageService } from '../services/storage.service';
 
 // =============================================================================
 // Type Definitions
@@ -57,16 +59,21 @@ interface ChatSession {
 // =============================================================================
 
 export default function FlowScreen() {
-  const { token, signOut } = useAuth();
+  const { token, user, signOut } = useAuth();
   const scrollViewRef = useRef<ScrollView>(null);
-  
+
   // Current conversation state
   const [messages, setMessages] = useState<ChatMessage[]>([]);
   const [newContent, setNewContent] = useState('');
   const [isSending, setIsSending] = useState(false);
   const [isRecording, setIsRecording] = useState(false);
   const [selectedImage, setSelectedImage] = useState<string | null>(null);
-  
+
+  // AI Role state
+  const [selectedRole, setSelectedRole] = useState(AI_CONFIG.ROLES[0]);
+  const [showRoleModal, setShowRoleModal] = useState(false);
+  const [expandedRoleId, setExpandedRoleId] = useState<string | null>(null);
+
   // History modal state
   const [showHistoryModal, setShowHistoryModal] = useState(false);
   const modalSlideAnim = useRef(new Animated.Value(0)).current;
@@ -95,23 +102,87 @@ export default function FlowScreen() {
       updatedAt: new Date('2024-01-16T20:30:00'),
     },
   ]);
-  
+
   // Header date display
   const today = new Date();
-  const dateStr = today.toLocaleDateString('en-US', { 
+  const dateStr = today.toLocaleDateString('en-US', {
-    weekday: 'long', 
+    weekday: 'long',
-    month: 'long', 
+    month: 'long',
-    day: 'numeric' 
+    day: 'numeric'
   });
 
-  // Auto-scroll to bottom when new messages arrive
+  // Load history on mount
   useEffect(() => {
+    const loadHistory = async () => {
+      if (!user) return;
+      try {
+        console.log('[FlowScreen] Loading chat history...');
+        const savedHistory = await storageService.getChatHistory(user.id);
+        if (savedHistory && savedHistory.length > 0) {
+          const formattedHistory = savedHistory.map((session: any) => ({
+            ...session,
+            createdAt: new Date(session.createdAt),
+            updatedAt: new Date(session.updatedAt),
+            messages: session.messages.map((msg: any) => ({
+              ...msg,
+              createdAt: new Date(msg.createdAt)
+            }))
+          }));
+          setChatHistory(formattedHistory);
+          console.log('[FlowScreen] Chat history loaded:', formattedHistory.length, 'sessions');
+        } else {
+          console.log('[FlowScreen] No chat history found');
+        }
+      } catch (error) {
+        console.error('Failed to load history:', error);
+      }
+    };
+    loadHistory();
+  }, [user]);
+
+  // Load messages whenever role changes
+  useEffect(() => {
+    const loadRoleMessages = async () => {
+      if (!user) return;
+      try {
+        const savedMessages = await storageService.getCurrentChat(selectedRole.id, user.id);
+        if (savedMessages) {
+          const formattedMessages = savedMessages.map((msg: any) => ({
+            ...msg,
+            createdAt: new Date(msg.createdAt)
+          }));
+          setMessages(formattedMessages);
+        } else {
+          setMessages([]);
+        }
+      } catch (error) {
+        console.error(`Failed to load messages for role ${selectedRole.id}:`, error);
+        setMessages([]);
+      }
+    };
+
+    loadRoleMessages();
+  }, [selectedRole.id, user]);
+
+  // Save current messages for the active role when they change
+  useEffect(() => {
+    if (user && messages.length >= 0) { // Save even if empty to allow clearing
+      storageService.saveCurrentChat(selectedRole.id, messages, user.id);
+    }
+
     if (messages.length > 0) {
       setTimeout(() => {
         scrollViewRef.current?.scrollToEnd({ animated: true });
       }, 100);
     }
-  }, [messages]);
+  }, [messages, selectedRole.id, user]);
+
+  // Save history when it changes
+  useEffect(() => {
+    if (user) {
+      storageService.saveChatHistory(chatHistory, user.id);
+    }
+  }, [chatHistory, user]);
 
   // Modal animation control
   const openHistoryModal = () => {
@@ -143,7 +214,7 @@ export default function FlowScreen() {
    */
   const handleSendMessage = async () => {
     if (!newContent.trim() || isSending) return;
-    
+
     // Check authentication
     if (!token) {
       Alert.alert(
@@ -153,11 +224,11 @@ export default function FlowScreen() {
       );
       return;
     }
-    
+
     const userMessage = newContent.trim();
     setIsSending(true);
     setNewContent('');
-    
+
     // Add user message immediately
     const userMsg: ChatMessage = {
       id: Date.now().toString(),
@@ -166,11 +237,11 @@ export default function FlowScreen() {
       createdAt: new Date(),
     };
     setMessages(prev => [...prev, userMsg]);
-    
+
     try {
-      // Call AI proxy
+      // Call AI proxy with selected role's system prompt
-      const aiResponse = await aiService.sendMessage(userMessage, token);
+      const aiResponse = await aiService.sendMessage(userMessage, token, selectedRole.systemPrompt);
-      
+
       // Add AI response
       const aiMsg: ChatMessage = {
         id: (Date.now() + 1).toString(),
@@ -179,20 +250,20 @@ export default function FlowScreen() {
         createdAt: new Date(),
       };
       setMessages(prev => [...prev, aiMsg]);
-      
+
     } catch (error) {
       console.error('AI request failed:', error);
-      
+
       const errorMessage = error instanceof Error ? error.message : String(error);
-      
+
       // Handle authentication errors (401, credentials, unauthorized)
-      const isAuthError = 
+      const isAuthError =
-        errorMessage.includes('401') || 
+        errorMessage.includes('401') ||
         errorMessage.includes('credentials') ||
         errorMessage.includes('Unauthorized') ||
         errorMessage.includes('Not authenticated') ||
         errorMessage.includes('validate');
-      
+
       if (isAuthError) {
         signOut();
         Alert.alert(
@@ -202,7 +273,7 @@ export default function FlowScreen() {
         );
         return;
       }
-      
+
       // Show error as AI message
       const errorMsg: ChatMessage = {
         id: (Date.now() + 1).toString(),
@@ -246,7 +317,7 @@ export default function FlowScreen() {
     if (!result.canceled && result.assets[0]) {
       const imageAsset = result.assets[0];
       setSelectedImage(imageAsset.uri);
-      
+
       // Check authentication
       if (!token) {
         Alert.alert(
@@ -289,9 +360,9 @@ export default function FlowScreen() {
         const errorMessage = error instanceof Error ? error.message : 'Unknown error';
 
         // Handle authentication errors
-        const isAuthError = 
+        const isAuthError =
-          errorMessage.includes('401') || 
+          errorMessage.includes('401') ||
-          errorMessage.includes('Unauthorized') || 
+          errorMessage.includes('Unauthorized') ||
           errorMessage.includes('credentials') ||
           errorMessage.includes('validate');
 
@@ -334,9 +405,12 @@ export default function FlowScreen() {
       };
       setChatHistory(prev => [newSession, ...prev]);
     }
-    
+
-    // Clear current messages
+    // Clear current messages and storage for this role
     setMessages([]);
+    if (user) {
+      storageService.saveCurrentChat(selectedRole.id, [], user.id);
+    }
     closeHistoryModal();
   };
 
@@ -355,7 +429,7 @@ export default function FlowScreen() {
       };
       setChatHistory(prev => [currentSession, ...prev.filter(s => s.id !== session.id)]);
     }
-    
+
     // Load selected conversation
     setMessages(session.messages);
     closeHistoryModal();
@@ -370,8 +444,8 @@ export default function FlowScreen() {
       'Are you sure you want to delete this conversation?',
       [
         { text: 'Cancel', style: 'cancel' },
-        { 
+        {
-          text: 'Delete', 
+          text: 'Delete',
           style: 'destructive',
           onPress: () => setChatHistory(prev => prev.filter(s => s.id !== sessionId))
         },
@@ -400,10 +474,10 @@ export default function FlowScreen() {
    */
   const renderMessage = (message: ChatMessage, index: number) => {
     const isUser = message.role === 'user';
-    
+
     return (
-      <View 
+      <View
-        key={message.id} 
+        key={message.id}
         style={[
           styles.messageBubble,
           isUser ? styles.userBubble : styles.aiBubble
@@ -420,8 +494,8 @@ export default function FlowScreen() {
         ]}>
           {/* Show image if present */}
           {message.imageUri && (
-            <Image 
+            <Image
-              source={{ uri: message.imageUri }} 
+              source={{ uri: message.imageUri }}
               style={styles.messageImage}
               resizeMode="cover"
             />
@@ -451,9 +525,9 @@ export default function FlowScreen() {
       <View style={styles.emptyIcon}>
         <Feather name="feather" size={48} color={colors.nautical.seafoam} />
       </View>
-      <Text style={styles.emptyTitle}>Start a conversation</Text>
+      <Text style={styles.emptyTitle}>Chatting with {selectedRole.name}</Text>
       <Text style={styles.emptySubtitle}>
-        Ask me anything or share your thoughts
+        {selectedRole.description}
       </Text>
     </View>
   );
@@ -462,7 +536,7 @@ export default function FlowScreen() {
    * Render history item in modal
    */
   const renderHistoryItem = ({ item }: { item: ChatSession }) => (
-    <TouchableOpacity 
+    <TouchableOpacity
       style={styles.historyItem}
       onPress={() => handleLoadHistory(item)}
       onLongPress={() => handleDeleteHistory(item.id)}
@@ -504,9 +578,26 @@ export default function FlowScreen() {
                 <Text style={styles.headerDate}>{dateStr}</Text>
               </View>
             </View>
-            
+
+            {/* Role Header Dropdown */}
+            <TouchableOpacity
+              style={styles.headerRoleButton}
+              onPress={() => setShowRoleModal(true)}
+              activeOpacity={0.7}
+            >
+              <Ionicons
+                name={selectedRole.icon as any}
+                size={16}
+                color={colors.nautical.teal}
+              />
+              <Text style={styles.headerRoleText} numberOfLines={1}>
+                {selectedRole.name}
+              </Text>
+              <Ionicons name="chevron-down" size={14} color={colors.flow.textSecondary} />
+            </TouchableOpacity>
+
             {/* History Button */}
-            <TouchableOpacity 
+            <TouchableOpacity
               style={styles.historyButton}
               onPress={openHistoryModal}
             >
@@ -515,7 +606,7 @@ export default function FlowScreen() {
           </View>
 
           {/* Chat Messages */}
-          <ScrollView 
+          <ScrollView
             ref={scrollViewRef}
             style={styles.messagesContainer}
             showsVerticalScrollIndicator={false}
@@ -529,7 +620,7 @@ export default function FlowScreen() {
             ) : (
               messages.map((message, index) => renderMessage(message, index))
             )}
-            
+
             {/* Loading indicator when sending */}
             {isSending && (
               <View style={[styles.messageBubble, styles.aiBubble]}>
@@ -541,7 +632,7 @@ export default function FlowScreen() {
                 </View>
               </View>
             )}
-            
+
             <View style={{ height: 20 }} />
           </ScrollView>
 
@@ -549,7 +640,7 @@ export default function FlowScreen() {
           <View style={styles.inputBarContainer}>
             <View style={styles.inputBar}>
               {/* Image attachment button */}
-              <TouchableOpacity 
+              <TouchableOpacity
                 style={styles.inputBarButton}
                 onPress={handleAddImage}
                 activeOpacity={0.7}
@@ -572,7 +663,7 @@ export default function FlowScreen() {
 
               {/* Send or Voice button */}
               {newContent.trim() || isSending ? (
-                <TouchableOpacity 
+                <TouchableOpacity
                   style={[styles.sendButton, isSending && styles.sendButtonDisabled]}
                   onPress={handleSendMessage}
                   activeOpacity={0.8}
@@ -590,15 +681,15 @@ export default function FlowScreen() {
                   </LinearGradient>
                 </TouchableOpacity>
               ) : (
-                <TouchableOpacity 
+                <TouchableOpacity
                   style={[styles.inputBarButton, isRecording && styles.recordingButton]}
                   onPress={handleVoiceRecord}
                   activeOpacity={0.7}
                 >
-                  <Feather 
+                  <Feather
-                    name="mic" 
+                    name="mic"
-                    size={22} 
+                    size={22}
-                    color={isRecording ? '#fff' : colors.flow.textSecondary} 
+                    color={isRecording ? '#fff' : colors.flow.textSecondary}
                   />
                 </TouchableOpacity>
               )}
@@ -607,17 +698,16 @@ export default function FlowScreen() {
         </SafeAreaView>
       </LinearGradient>
 
-      {/* History Modal - Background appears instantly, content slides up */}
+      <Modal
-      <Modal 
+        visible={showHistoryModal}
-        visible={showHistoryModal} 
         animationType="none"
-        transparent 
+        transparent
         onRequestClose={closeHistoryModal}
       >
         <TouchableWithoutFeedback onPress={closeHistoryModal}>
           <View style={styles.modalOverlay}>
             <TouchableWithoutFeedback onPress={(e) => e.stopPropagation()}>
-              <Animated.View 
+              <Animated.View
                 style={[
                   styles.modalContent,
                   {
@@ -630,46 +720,129 @@ export default function FlowScreen() {
                   }
                 ]}
               >
-            <View style={styles.modalHandle} />
+                <View style={styles.modalHandle} />
-            
+
-            {/* Modal Header */}
+                {/* Modal Header */}
-            <View style={styles.modalHeader}>
+                <View style={styles.modalHeader}>
-              <Text style={styles.modalTitle}>Chat History</Text>
+                  <Text style={styles.modalTitle}>Chat History</Text>
-              <TouchableOpacity 
+                  <TouchableOpacity
-                style={styles.newChatButton}
+                    style={styles.newChatButton}
-                onPress={handleNewChat}
+                    onPress={handleNewChat}
-              >
+                  >
-                <Ionicons name="add" size={20} color="#fff" />
+                    <Ionicons name="add" size={20} color="#fff" />
-                <Text style={styles.newChatText}>New Chat</Text>
+                    <Text style={styles.newChatText}>New Chat</Text>
-              </TouchableOpacity>
+                  </TouchableOpacity>
-            </View>
-            
-            {/* History List */}
-            <FlatList
-              data={chatHistory}
-              renderItem={renderHistoryItem}
-              keyExtractor={item => item.id}
-              style={styles.historyList}
-              ListEmptyComponent={
-                <View style={styles.historyEmpty}>
-                  <Ionicons name="chatbubbles-outline" size={48} color={colors.flow.textSecondary} />
-                  <Text style={styles.historyEmptyText}>No chat history yet</Text>
                 </View>
-              }
+
-            />
+                {/* History List */}
-            
+                <FlatList
-            {/* Close Button */}
+                  data={chatHistory}
-            <TouchableOpacity 
+                  renderItem={renderHistoryItem}
-              style={styles.closeButton}
+                  keyExtractor={item => item.id}
-              onPress={closeHistoryModal}
+                  style={styles.historyList}
-            >
+                  ListEmptyComponent={
-              <Text style={styles.closeButtonText}>Close</Text>
+                    <View style={styles.historyEmpty}>
-            </TouchableOpacity>
+                      <Ionicons name="chatbubbles-outline" size={48} color={colors.flow.textSecondary} />
+                      <Text style={styles.historyEmptyText}>No chat history yet</Text>
+                    </View>
+                  }
+                />
+
+                {/* Close Button */}
+                <TouchableOpacity
+                  style={styles.closeButton}
+                  onPress={closeHistoryModal}
+                >
+                  <Text style={styles.closeButtonText}>Close</Text>
+                </TouchableOpacity>
               </Animated.View>
             </TouchableWithoutFeedback>
           </View>
         </TouchableWithoutFeedback>
       </Modal>
+
+      {/* Role Selection Modal */}
+      <Modal
+        visible={showRoleModal}
+        animationType="fade"
+        transparent
+        onRequestClose={() => setShowRoleModal(false)}
+      >
+        <TouchableWithoutFeedback onPress={() => setShowRoleModal(false)}>
+          <View style={styles.modalOverlay}>
+            <TouchableWithoutFeedback onPress={(e) => e.stopPropagation()}>
+              <View style={[styles.modalContent, styles.roleModalContent]}>
+                <View style={styles.modalHandle} />
+                <Text style={styles.modalTitle}>Choose AI Assistant</Text>
+
+                <ScrollView style={styles.roleList} showsVerticalScrollIndicator={false}>
+                  {AI_CONFIG.ROLES.map((role) => (
+                    <View key={role.id} style={styles.roleItemContainer}>
+                      <View
+                        style={[
+                          styles.roleItem,
+                          selectedRole.id === role.id && styles.roleItemActive
+                        ]}
+                      >
+                        <TouchableOpacity
+                          style={styles.roleSelectionArea}
+                          onPress={() => {
+                            setSelectedRole(role as any);
+                            setShowRoleModal(false);
+                          }}
+                        >
+                          <View style={[
+                            styles.roleItemIcon,
+                            selectedRole.id === role.id && styles.roleItemIconActive
+                          ]}>
+                            <Ionicons
+                              name={role.icon as any}
+                              size={20}
+                              color={selectedRole.id === role.id ? '#fff' : colors.nautical.teal}
+                            />
+                          </View>
+                          <Text style={[
+                            styles.roleItemName,
+                            selectedRole.id === role.id && styles.roleItemNameActive
+                          ]}>
+                            {role.name}
+                          </Text>
+                        </TouchableOpacity>
+
+                        <TouchableOpacity
+                          style={styles.infoButton}
+                          onPress={() => {
+                            setExpandedRoleId(expandedRoleId === role.id ? null : role.id);
+                          }}
+                        >
+                          <Ionicons
+                            name={expandedRoleId === role.id ? "close-circle-outline" : "information-circle-outline"}
+                            size={24}
+                            color={expandedRoleId === role.id ? colors.nautical.coral : colors.flow.textSecondary}
+                          />
+                        </TouchableOpacity>
+                      </View>
+
+                      {expandedRoleId === role.id && (
+                        <View style={styles.roleDescription}>
+                          <Text style={styles.roleDescriptionText}>{role.description}</Text>
+                        </View>
+                      )}
+                    </View>
+                  ))}
+                </ScrollView>
+
+                <TouchableOpacity
+                  style={styles.closeButton}
+                  onPress={() => setShowRoleModal(false)}
+                >
+                  <Text style={styles.closeButtonText}>Cancel</Text>
+                </TouchableOpacity>
+              </View>
+            </TouchableWithoutFeedback>
+          </View>
+        </TouchableWithoutFeedback>
+      </Modal>
     </View>
   );
 }
@@ -680,16 +853,16 @@ export default function FlowScreen() {
 
 const styles = StyleSheet.create({
   // Container styles
-  container: { 
+  container: {
-    flex: 1 
+    flex: 1
   },
-  gradient: { 
+  gradient: {
-    flex: 1 
+    flex: 1
   },
-  safeArea: { 
+  safeArea: {
-    flex: 1 
+    flex: 1
   },
-  
+
   // Header styles
   header: {
     flexDirection: 'row',
@@ -697,12 +870,33 @@ const styles = StyleSheet.create({
     alignItems: 'center',
     paddingHorizontal: spacing.base,
     paddingTop: spacing.sm,
-    paddingBottom: spacing.md,
+    paddingBottom: spacing.sm,
+    borderBottomWidth: 1,
+    borderBottomColor: 'rgba(0,0,0,0.05)',
   },
   headerLeft: {
     flexDirection: 'row',
     alignItems: 'center',
     gap: spacing.sm,
+    flex: 1,
+  },
+  headerRoleButton: {
+    flexDirection: 'row',
+    alignItems: 'center',
+    backgroundColor: colors.flow.cardBackground,
+    paddingHorizontal: spacing.sm,
+    paddingVertical: 6,
+    borderRadius: borderRadius.full,
+    marginHorizontal: spacing.sm,
+    borderWidth: 1,
+    borderColor: colors.flow.cardBorder,
+    maxWidth: '40%',
+  },
+  headerRoleText: {
+    fontSize: typography.fontSize.xs,
+    fontWeight: '600',
+    color: colors.flow.text,
+    marginHorizontal: 4,
   },
   iconCircle: {
     width: 44,
@@ -731,20 +925,20 @@ const styles = StyleSheet.create({
     alignItems: 'center',
     ...shadows.soft,
   },
-  
+
   // Messages container styles
-  messagesContainer: { 
+  messagesContainer: {
-    flex: 1 
+    flex: 1
   },
-  messagesContent: { 
+  messagesContent: {
-    padding: spacing.base, 
+    padding: spacing.base,
-    paddingTop: 0 
+    paddingTop: 0
   },
   emptyContent: {
     flex: 1,
     justifyContent: 'center',
   },
-  
+
   // Empty state styles
   emptyState: {
     alignItems: 'center',
@@ -772,7 +966,97 @@ const styles = StyleSheet.create({
     color: colors.flow.textSecondary,
     textAlign: 'center',
   },
-  
+
+  // Role selection styles
+  roleDropdown: {
+    flexDirection: 'row',
+    alignItems: 'center',
+    backgroundColor: colors.flow.cardBackground,
+    paddingHorizontal: spacing.md,
+    paddingVertical: spacing.sm,
+    borderRadius: borderRadius.lg,
+    marginBottom: spacing.md,
+    ...shadows.soft,
+    borderWidth: 1,
+    borderColor: colors.flow.cardBorder,
+  },
+  roleIcon: {
+    marginRight: spacing.sm,
+  },
+  roleDropdownText: {
+    fontSize: typography.fontSize.base,
+    fontWeight: '600',
+    color: colors.flow.text,
+    marginRight: spacing.xs,
+  },
+  roleModalContent: {
+    paddingBottom: spacing.xl,
+  },
+  roleList: {
+    marginTop: spacing.sm,
+    maxHeight: 400,
+  },
+  roleItemContainer: {
+    marginBottom: spacing.sm,
+  },
+  roleItem: {
+    flexDirection: 'row',
+    alignItems: 'center',
+    justifyContent: 'space-between',
+    borderRadius: borderRadius.lg,
+    backgroundColor: 'transparent',
+    borderWidth: 1,
+    borderColor: 'transparent',
+    overflow: 'hidden',
+  },
+  roleItemActive: {
+    backgroundColor: colors.nautical.paleAqua,
+    borderColor: colors.nautical.lightMint,
+  },
+  roleSelectionArea: {
+    flex: 1,
+    flexDirection: 'row',
+    alignItems: 'center',
+    padding: spacing.md,
+  },
+  roleItemIcon: {
+    width: 36,
+    height: 36,
+    borderRadius: 18,
+    backgroundColor: colors.flow.backgroundGradientStart,
+    justifyContent: 'center',
+    alignItems: 'center',
+    marginRight: spacing.md,
+  },
+  roleItemIconActive: {
+    backgroundColor: colors.nautical.teal,
+  },
+  roleItemName: {
+    fontSize: typography.fontSize.base,
+    fontWeight: '500',
+    color: colors.flow.text,
+  },
+  roleItemNameActive: {
+    fontWeight: '700',
+    color: colors.nautical.teal,
+  },
+  infoButton: {
+    padding: spacing.md,
+    justifyContent: 'center',
+    alignItems: 'center',
+  },
+  roleDescription: {
+    paddingHorizontal: spacing.md + 36 + spacing.md, // icon width + margins
+    paddingBottom: spacing.sm,
+    paddingTop: 0,
+  },
+  roleDescriptionText: {
+    fontSize: typography.fontSize.sm,
+    color: colors.flow.textSecondary,
+    fontStyle: 'italic',
+    lineHeight: 18,
+  },
+
   // Message bubble styles
   messageBubble: {
     flexDirection: 'row',
@@ -837,7 +1121,7 @@ const styles = StyleSheet.create({
   aiMessageTime: {
     color: colors.flow.textSecondary,
   },
-  
+
   // Input bar styles
   inputBarContainer: {
     paddingHorizontal: spacing.base,
@@ -893,7 +1177,7 @@ const styles = StyleSheet.create({
     justifyContent: 'center',
     alignItems: 'center',
   },
-  
+
   // Modal styles
   modalOverlay: {
     flex: 1,
@@ -941,7 +1225,7 @@ const styles = StyleSheet.create({
     fontWeight: '600',
     color: '#fff',
   },
-  
+
   // History list styles
   historyList: {
     flex: 1,

src/screens/MeScreen.tsx

@@ -220,7 +220,8 @@ export default function MeScreen() {
   const [showHeritageModal, setShowHeritageModal] = useState(false);
   const [showThemeModal, setShowThemeModal] = useState(false);
   const [isDarkMode, setIsDarkMode] = useState(false);
-  
+  const [showSignOutModal, setShowSignOutModal] = useState(false);
+
   // Heritage / Fleet Legacy states
   const [heirs, setHeirs] = useState<Heir[]>(initialHeirs);
   const [showAddHeirModal, setShowAddHeirModal] = useState(false);
@@ -294,18 +295,14 @@ export default function MeScreen() {
   };
 
   const handleAbandonIsland = () => {
-    Alert.alert(
+    console.log('[MeScreen] Sign out button clicked');
-      'Sign Out',
+    setShowSignOutModal(true);
-      'Are you sure you want to sign out?',
+  };
-      [
+
-        { text: 'Cancel', style: 'cancel' },
+  const handleConfirmSignOut = () => {
-        {
+    console.log('[MeScreen] User confirmed sign out');
-          text: 'Sign Out',
+    setShowSignOutModal(false);
-          style: 'destructive',
+    signOut();
-          onPress: signOut
-        },
-      ]
-    );
   };
 
   return (
@@ -618,10 +615,10 @@ export default function MeScreen() {
                   activeOpacity={0.85}
                 >
                   <View style={{ flexDirection: 'row', alignItems: 'center', gap: spacing.sm }}>
-                    <Ionicons 
+                    <Ionicons
-                      name={isDarkMode ? 'moon' : 'sunny'} 
+                      name={isDarkMode ? 'moon' : 'sunny'}
-                      size={18} 
+                      size={18}
-                      color={colors.me.primary} 
+                      color={colors.me.primary}
                     />
                     <Text style={styles.sanctumText}>Dark Mode</Text>
                   </View>
@@ -1412,6 +1409,46 @@ export default function MeScreen() {
           </View>
         </View>
       </Modal>
+
+      {/* Sign Out Confirmation Modal */}
+      <Modal
+        visible={showSignOutModal}
+        animationType="fade"
+        transparent
+        onRequestClose={() => setShowSignOutModal(false)}
+      >
+        <View style={styles.spiritOverlay}>
+          <View style={styles.signOutModal}>
+            <View style={styles.signOutHeader}>
+              <View style={styles.signOutIcon}>
+                <Feather name="log-out" size={32} color={colors.nautical.coral} />
+              </View>
+              <Text style={styles.signOutTitle}>Sign Out</Text>
+              <Text style={styles.signOutMessage}>
+                Are you sure you want to sign out? You'll need to log in again to access your account.
+              </Text>
+            </View>
+
+            <View style={styles.signOutButtons}>
+              <TouchableOpacity
+                style={styles.signOutCancelButton}
+                onPress={() => setShowSignOutModal(false)}
+                activeOpacity={0.85}
+              >
+                <Text style={styles.signOutCancelText}>Cancel</Text>
+              </TouchableOpacity>
+
+              <TouchableOpacity
+                style={styles.signOutConfirmButton}
+                onPress={handleConfirmSignOut}
+                activeOpacity={0.85}
+              >
+                <Text style={styles.signOutConfirmText}>Sign Out</Text>
+              </TouchableOpacity>
+            </View>
+          </View>
+        </View>
+      </Modal>
     </View>
   );
 }
@@ -2333,4 +2370,71 @@ const styles = StyleSheet.create({
     justifyContent: 'center',
     zIndex: 10,
   },
+  // Sign Out Modal Styles
+  signOutModal: {
+    backgroundColor: colors.me.cardBackground,
+    borderRadius: borderRadius.xl,
+    padding: spacing.xl,
+    marginHorizontal: spacing.xl,
+    maxWidth: 400,
+    width: '100%',
+    ...shadows.medium,
+  },
+  signOutHeader: {
+    alignItems: 'center',
+    marginBottom: spacing.xl,
+  },
+  signOutIcon: {
+    width: 72,
+    height: 72,
+    borderRadius: 36,
+    backgroundColor: `${colors.nautical.coral}15`,
+    alignItems: 'center',
+    justifyContent: 'center',
+    marginBottom: spacing.base,
+  },
+  signOutTitle: {
+    fontSize: typography.fontSize.xl,
+    fontWeight: '700',
+    color: colors.me.text,
+    marginBottom: spacing.sm,
+  },
+  signOutMessage: {
+    fontSize: typography.fontSize.base,
+    color: colors.me.textSecondary,
+    textAlign: 'center',
+    lineHeight: typography.fontSize.base * 1.5,
+  },
+  signOutButtons: {
+    flexDirection: 'row',
+    gap: spacing.md,
+  },
+  signOutCancelButton: {
+    flex: 1,
+    paddingVertical: spacing.base,
+    paddingHorizontal: spacing.lg,
+    borderRadius: borderRadius.lg,
+    backgroundColor: colors.me.cardBorder,
+    alignItems: 'center',
+    justifyContent: 'center',
+  },
+  signOutCancelText: {
+    fontSize: typography.fontSize.base,
+    fontWeight: '600',
+    color: colors.me.text,
+  },
+  signOutConfirmButton: {
+    flex: 1,
+    paddingVertical: spacing.base,
+    paddingHorizontal: spacing.lg,
+    borderRadius: borderRadius.lg,
+    backgroundColor: colors.nautical.coral,
+    alignItems: 'center',
+    justifyContent: 'center',
+  },
+  signOutConfirmText: {
+    fontSize: typography.fontSize.base,
+    fontWeight: '600',
+    color: '#fff',
+  },
 });

src/services/ai.service.ts

@@ -95,7 +95,7 @@ export const aiService = {
     }
 
     const url = buildApiUrl(API_ENDPOINTS.AI.PROXY);
-    
+
     logApiDebug('AI Request', {
       url,
       hasToken: !!token,
@@ -114,7 +114,7 @@ export const aiService = {
       if (!response.ok) {
         const errorText = await response.text();
         logApiDebug('AI Error Response', errorText);
-        
+
         let errorDetail = 'AI request failed';
         try {
           const errorData = JSON.parse(errorText);
@@ -131,7 +131,7 @@ export const aiService = {
         model: data.model,
         choicesCount: data.choices?.length,
       });
-      
+
       return data;
     } catch (error) {
       console.error('AI proxy error:', error);
@@ -143,13 +143,14 @@ export const aiService = {
    * Simple helper for single message chat
    * @param content - User message content
    * @param token - JWT token for authentication
+   * @param systemPrompt - Optional custom system prompt
    * @returns AI response text
    */
-  async sendMessage(content: string, token?: string): Promise<string> {
+  async sendMessage(content: string, token?: string, systemPrompt?: string): Promise<string> {
     const messages: AIMessage[] = [
       {
         role: 'system',
-        content: AI_CONFIG.DEFAULT_SYSTEM_PROMPT,
+        content: systemPrompt || AI_CONFIG.DEFAULT_SYSTEM_PROMPT,
       },
       {
         role: 'user',
@@ -179,7 +180,7 @@ export const aiService = {
     }
 
     const url = buildApiUrl(API_ENDPOINTS.AI.PROXY);
-    
+
     logApiDebug('AI Image Request', {
       url,
       hasToken: !!token,
@@ -217,7 +218,7 @@ export const aiService = {
       if (!response.ok) {
         const errorText = await response.text();
         logApiDebug('AI Image Error Response', errorText);
-        
+
         let errorDetail = 'AI image request failed';
         try {
           const errorData = JSON.parse(errorText);
@@ -233,7 +234,7 @@ export const aiService = {
         id: data.id,
         model: data.model,
       });
-      
+
       return data.choices[0]?.message?.content || 'No response';
     } catch (error) {
       console.error('AI image proxy error:', error);

src/services/storage.service.ts

@@ -0,0 +1,120 @@
+/**
+ * Storage Service
+ * 
+ * Handles local persistence of chat history and active conversations
+ * using AsyncStorage with user-specific isolation.
+ */
+
+import AsyncStorage from '@react-native-async-storage/async-storage';
+
+// =============================================================================
+// Constants
+// =============================================================================
+
+const STORAGE_KEYS = {
+    CHAT_HISTORY: '@sentinel:chat_history',
+    CURRENT_MESSAGES: '@sentinel:current_messages',
+} as const;
+
+// =============================================================================
+// Service Implementation
+// =============================================================================
+
+export const storageService = {
+    /**
+     * Get user-specific storage key
+     */
+    getUserKey(baseKey: string, userId: string | number): string {
+        return `${baseKey}:user_${userId}`;
+    },
+
+    /**
+     * Save the complete list of chat sessions to local storage for a specific user
+     */
+    async saveChatHistory(history: any[], userId: string | number): Promise<void> {
+        try {
+            const jsonValue = JSON.stringify(history);
+            const key = this.getUserKey(STORAGE_KEYS.CHAT_HISTORY, userId);
+            await AsyncStorage.setItem(key, jsonValue);
+            console.log(`[Storage] Saved chat history for user ${userId}:`, history.length, 'sessions');
+        } catch (e) {
+            console.error('Error saving chat history:', e);
+        }
+    },
+
+    /**
+     * Load the list of chat sessions from local storage for a specific user
+     */
+    async getChatHistory(userId: string | number): Promise<any[]> {
+        try {
+            const key = this.getUserKey(STORAGE_KEYS.CHAT_HISTORY, userId);
+            const jsonValue = await AsyncStorage.getItem(key);
+            const result = jsonValue != null ? JSON.parse(jsonValue) : [];
+            console.log(`[Storage] Loaded chat history for user ${userId}:`, result.length, 'sessions');
+            return result;
+        } catch (e) {
+            console.error('Error getting chat history:', e);
+            return [];
+        }
+    },
+
+    /**
+   * Save the current active conversation messages for a specific role and user
+   */
+    async saveCurrentChat(roleId: string, messages: any[], userId: string | number): Promise<void> {
+        try {
+            const jsonValue = JSON.stringify(messages);
+            const key = `${this.getUserKey(STORAGE_KEYS.CURRENT_MESSAGES, userId)}:${roleId}`;
+            await AsyncStorage.setItem(key, jsonValue);
+            console.log(`[Storage] Saved current chat for user ${userId}, role ${roleId}:`, messages.length, 'messages');
+        } catch (e) {
+            console.error(`Error saving current chat for role ${roleId}:`, e);
+        }
+    },
+
+    /**
+     * Load the current active conversation messages for a specific role and user
+     */
+    async getCurrentChat(roleId: string, userId: string | number): Promise<any[]> {
+        try {
+            const key = `${this.getUserKey(STORAGE_KEYS.CURRENT_MESSAGES, userId)}:${roleId}`;
+            const jsonValue = await AsyncStorage.getItem(key);
+            const result = jsonValue != null ? JSON.parse(jsonValue) : [];
+            console.log(`[Storage] Loaded current chat for user ${userId}, role ${roleId}:`, result.length, 'messages');
+            return result;
+        } catch (e) {
+            console.error(`Error getting current chat for role ${roleId}:`, e);
+            return [];
+        }
+    },
+
+    /**
+     * Clear all stored chat data for a specific user
+     */
+    async clearUserData(userId: string | number): Promise<void> {
+        try {
+            const keys = await AsyncStorage.getAllKeys();
+            const userPrefix = `:user_${userId}`;
+            const userKeys = keys.filter(key => key.includes(userPrefix));
+            await AsyncStorage.multiRemove(userKeys);
+            console.log(`[Storage] Cleared all data for user ${userId}:`, userKeys.length, 'keys removed');
+        } catch (e) {
+            console.error('Error clearing user data:', e);
+        }
+    },
+
+    /**
+     * Clear all stored chat data (all users)
+     */
+    async clearAllData(): Promise<void> {
+        try {
+            const keys = await AsyncStorage.getAllKeys();
+            const sentinelKeys = keys.filter(key => key.startsWith('@sentinel:'));
+            await AsyncStorage.multiRemove(sentinelKeys);
+            console.log('[Storage] Cleared all data:', sentinelKeys.length, 'keys removed');
+        } catch (e) {
+            console.error('Error clearing storage data:', e);
+        }
+    }
+};
+