feat: Implement smart AI features - contextual follow-up questions

Smart Features Completed:
1. Growth Spurt Detection - Already fully implemented ✅
   - Backend: Pattern analysis service with 20%+ feeding spike detection
   - Frontend: GrowthSpurtAlert component with collapsible details
   - Age-based probability calculation (2,3,6,12,16,24,36 weeks)
   - Integrated into analytics dashboard

2. AI Personalization System - Already fully implemented ✅
   - Backend: PersonalizationService with preference tracking
   - Response style adaptation (Concise/Detailed/Balanced)
   - Tone customization (Friendly/Professional/Casual/Empathetic)
   - Topic weight learning and feedback integration
   - Formatting preferences (bullets, step-by-step, examples)

3. Suggested Follow-Up Questions - NEW IMPLEMENTATION 🧠
   - Created SuggestedQuestions component with animated Chip buttons
   - Context-aware question generation based on topic detection
   - 7 topic categories: sleep, feeding, development, health, crying, schedule, growth
   - Smart question selection using keyword matching
   - One-tap to ask follow-up (auto-sends message)
   - Framer Motion animations with glass morphism design
   - Integrated into AIChatInterface after each AI response

Files Changed:
Frontend:
- components/features/ai-chat/SuggestedQuestions.tsx (new)
- lib/ai/suggestedQuestions.ts (new)
- components/features/ai-chat/AIChatInterface.tsx (modified)

Documentation:
- docs/REMAINING_FEATURES.md (updated)
  * 76/139 features complete (55%)
  * All high-priority + smart features complete!
  * Updated statistics and checklists

Technical Implementation:
- Topic detection with regex pattern matching
- Generic follow-up questions as fallback
- Response-specific question prioritization
- Duplicate removal and smart limiting
- Integration with existing chat message flow

🎉 Result: ParentFlow AI is now smart, personalized, and interactive!

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

maternal-web/components/features/ai-chat/AIChatInterface.tsx

@@ -55,12 +55,15 @@ import remarkGfm from 'remark-gfm';
 import { useTranslation } from '@/hooks/useTranslation';
 import { useStreamingChat } from '@/hooks/useStreamingChat';
 import { MessageFeedback } from './MessageFeedback';
+import { SuggestedQuestions } from './SuggestedQuestions';
+import { generateFollowUpQuestions } from '@/lib/ai/suggestedQuestions';
 
 interface Message {
   id: string;
   role: 'user' | 'assistant';
   content: string;
   timestamp: Date;
+  suggestedQuestions?: string[];
 }
 
 interface Conversation {
@@ -374,12 +377,20 @@ export const AIChatInterface: React.FC = () => {
           },
           // On complete
           () => {
+            // Generate suggested follow-up questions
+            const suggestedQuestions = generateFollowUpQuestions(
+              messageText,
+              accumulatedMessage,
+              3
+            );
+
             // Add the complete message to messages
             const assistantMessage: Message = {
               id: (Date.now() + 1).toString(),
               role: 'assistant',
               content: accumulatedMessage,
               timestamp: new Date(),
+              suggestedQuestions,
             };
             setMessages((prev) => [...prev, assistantMessage]);
             setStreamingMessage('');
@@ -418,11 +429,20 @@ export const AIChatInterface: React.FC = () => {
         });
 
         const responseData = response.data.data;
+
+        // Generate suggested follow-up questions
+        const suggestedQuestions = generateFollowUpQuestions(
+          messageText,
+          responseData.message,
+          3
+        );
+
         const assistantMessage: Message = {
           id: (Date.now() + 1).toString(),
           role: 'assistant',
           content: responseData.message,
           timestamp: new Date(responseData.timestamp),
+          suggestedQuestions,
         };
 
         setMessages((prev) => [...prev, assistantMessage]);
@@ -801,6 +821,17 @@ export const AIChatInterface: React.FC = () => {
                     </Avatar>
                   )}
                 </Box>
+
+                {/* Suggested Follow-up Questions */}
+                {message.role === 'assistant' && message.suggestedQuestions && message.suggestedQuestions.length > 0 && (
+                  <Box sx={{ maxWidth: '70%', ml: 7 }}>
+                    <SuggestedQuestions
+                      questions={message.suggestedQuestions}
+                      onQuestionClick={handleSuggestedQuestion}
+                      loading={isLoading}
+                    />
+                  </Box>
+                )}
               </motion.div>
             ))}
           </AnimatePresence>

maternal-web/components/features/ai-chat/SuggestedQuestions.tsx

@@ -0,0 +1,87 @@
+'use client';
+
+import { Box, Chip, Typography } from '@mui/material';
+import { AutoAwesome } from '@mui/icons-material';
+import { motion, AnimatePresence } from 'framer-motion';
+
+interface SuggestedQuestionsProps {
+  questions: string[];
+  onQuestionClick: (question: string) => void;
+  loading?: boolean;
+}
+
+export function SuggestedQuestions({
+  questions,
+  onQuestionClick,
+  loading = false,
+}: SuggestedQuestionsProps) {
+  if (loading || questions.length === 0) {
+    return null;
+  }
+
+  return (
+    <Box
+      sx={{
+        mt: 2,
+        p: 2,
+        borderRadius: 2,
+        bgcolor: 'rgba(255, 255, 255, 0.7)',
+        backdropFilter: 'blur(10px)',
+        border: '1px solid',
+        borderColor: 'divider',
+      }}
+    >
+      <Box sx={{ display: 'flex', alignItems: 'center', gap: 1, mb: 1.5 }}>
+        <AutoAwesome sx={{ fontSize: 18, color: 'primary.main' }} />
+        <Typography variant="caption" fontWeight={600} color="text.secondary">
+          Suggested follow-up questions
+        </Typography>
+      </Box>
+
+      <Box
+        sx={{
+          display: 'flex',
+          flexWrap: 'wrap',
+          gap: 1,
+        }}
+      >
+        <AnimatePresence>
+          {questions.map((question, index) => (
+            <motion.div
+              key={question}
+              initial={{ opacity: 0, scale: 0.8 }}
+              animate={{ opacity: 1, scale: 1 }}
+              exit={{ opacity: 0, scale: 0.8 }}
+              transition={{ delay: index * 0.1 }}
+            >
+              <Chip
+                label={question}
+                onClick={() => onQuestionClick(question)}
+                sx={{
+                  py: 2.5,
+                  px: 1,
+                  borderRadius: 2,
+                  fontSize: '0.875rem',
+                  bgcolor: 'background.paper',
+                  border: 1,
+                  borderColor: 'primary.light',
+                  cursor: 'pointer',
+                  transition: 'all 0.2s',
+                  '&:hover': {
+                    bgcolor: 'primary.light',
+                    borderColor: 'primary.main',
+                    transform: 'translateY(-2px)',
+                    boxShadow: 2,
+                  },
+                  '&:active': {
+                    transform: 'translateY(0)',
+                  },
+                }}
+              />
+            </motion.div>
+          ))}
+        </AnimatePresence>
+      </Box>
+    </Box>
+  );
+}