small fix, don't worry about it

lifetimer/lib/features/ai_chat/application/ai_chat_controller.dart

@@ -27,7 +27,7 @@ class AIChatState {
     this.isRecording = false,
     this.error,
     this.currentTranscription,
-    this.privacyModeEnabled = true,
+    this.privacyModeEnabled = false,
   });
 
   AIChatState copyWith({
@@ -153,6 +153,13 @@ class AIChatController extends StateNotifier<AIChatState> {
     buffer.writeln(
         'User privacy mode is DISABLED. Use the following personal context to personalise your coaching:');
     buffer.writeln('Username: ${user.username}.');
+    
+    if (user.heightCm != null) {
+      buffer.writeln('Height: ${user.heightCm!.toStringAsFixed(1)} cm.');
+    }
+    if (user.weightKg != null) {
+      buffer.writeln('Weight: ${user.weightKg!.toStringAsFixed(1)} kg.');
+    }
 
     if (countdownSummary != null) {
       buffer.writeln(countdownSummary);

lifetimer/lib/features/ai_chat/presentation/ai_chat_screen.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:flutter_markdown/flutter_markdown.dart';
 import '../application/ai_chat_controller.dart';
 
 class AIChatScreen extends ConsumerStatefulWidget {
@@ -64,7 +65,7 @@ class _AIChatScreenState extends ConsumerState<AIChatScreen> {
           Expanded(
             child: state.messages.isEmpty
                 ? _buildEmptyState(context)
-                : _buildMessagesList(state.messages),
+                : _buildMessagesList(state.messages, state.isLoading),
           ),
 
           // Error message
@@ -87,7 +88,7 @@ class _AIChatScreenState extends ConsumerState<AIChatScreen> {
                           color: Theme.of(context)
                               .colorScheme
                               .onSurface
-                              .withValues(alpha:0.7),
+                              .withValues(alpha: 0.7),
                         ),
                   ),
                 ),
@@ -128,7 +129,7 @@ class _AIChatScreenState extends ConsumerState<AIChatScreen> {
           Text(
             'Ask for goal inspiration, motivation, or life advice',
             style: Theme.of(context).textTheme.bodyMedium?.copyWith(
-              color: Theme.of(context).colorScheme.onSurface.withValues(alpha:0.7),
+              color: Theme.of(context).colorScheme.onSurface.withValues(alpha: 0.7),
             ),
             textAlign: TextAlign.center,
           ),
@@ -174,12 +175,16 @@ class _AIChatScreenState extends ConsumerState<AIChatScreen> {
     );
   }
 
-  Widget _buildMessagesList(List messages) {
+  Widget _buildMessagesList(List messages, bool isLoading) {
     return ListView.builder(
       controller: _scrollController,
       padding: const EdgeInsets.all(16),
-      itemCount: messages.length,
+      itemCount: messages.length + (isLoading ? 1 : 0),
       itemBuilder: (context, index) {
+        if (index == messages.length && isLoading) {
+          return _buildLoadingIndicator();
+        }
+        
         final message = messages[index];
         final isUser = message.role == 'user';
         
@@ -218,14 +223,29 @@ class _AIChatScreenState extends ConsumerState<AIChatScreen> {
                     : Theme.of(context).colorScheme.surfaceContainerHighest,
                 borderRadius: BorderRadius.circular(20),
               ),
-              child: Text(
-                message.content,
-                style: Theme.of(context).textTheme.bodyMedium?.copyWith(
-                  color: isUser
-                      ? Theme.of(context).colorScheme.onPrimary
-                      : Theme.of(context).colorScheme.onSurfaceVariant,
-                ),
-              ),
+              child: isUser
+                  ? Text(
+                      message.content,
+                      style: Theme.of(context).textTheme.bodyMedium?.copyWith(
+                        color: Theme.of(context).colorScheme.onPrimary,
+                      ),
+                    )
+                  : MarkdownBody(
+                      data: message.content,
+                      styleSheet: MarkdownStyleSheet.fromTheme(Theme.of(context)).copyWith(
+                        p: Theme.of(context).textTheme.bodyMedium?.copyWith(
+                          color: Theme.of(context).colorScheme.onSurfaceVariant,
+                        ),
+                        code: Theme.of(context).textTheme.bodySmall?.copyWith(
+                          backgroundColor: Theme.of(context).colorScheme.surfaceContainer,
+                          color: Theme.of(context).colorScheme.onSurfaceVariant,
+                        ),
+                        codeblockDecoration: BoxDecoration(
+                          color: Theme.of(context).colorScheme.surfaceContainer,
+                          borderRadius: BorderRadius.circular(8),
+                        ),
+                      ),
+                    ),
             ),
           ),
           if (isUser) ...[
@@ -245,6 +265,59 @@ class _AIChatScreenState extends ConsumerState<AIChatScreen> {
     );
   }
 
+  Widget _buildLoadingIndicator() {
+    return Padding(
+      padding: const EdgeInsets.only(bottom: 16),
+      child: Row(
+        mainAxisAlignment: MainAxisAlignment.start,
+        children: [
+          CircleAvatar(
+            radius: 16,
+            backgroundColor: Theme.of(context).colorScheme.primary,
+            child: Icon(
+              Icons.psychology,
+              size: 20,
+              color: Theme.of(context).colorScheme.onPrimary,
+            ),
+          ),
+          const SizedBox(width: 8),
+          Container(
+            constraints: BoxConstraints(
+              maxWidth: MediaQuery.of(context).size.width * 0.75,
+            ),
+            padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
+            decoration: BoxDecoration(
+              color: Theme.of(context).colorScheme.surfaceContainerHighest,
+              borderRadius: BorderRadius.circular(20),
+            ),
+            child: Row(
+              mainAxisSize: MainAxisSize.min,
+              children: [
+                SizedBox(
+                  width: 16,
+                  height: 16,
+                  child: CircularProgressIndicator(
+                    strokeWidth: 2,
+                    valueColor: AlwaysStoppedAnimation<Color>(
+                      Theme.of(context).colorScheme.onSurfaceVariant,
+                    ),
+                  ),
+                ),
+                const SizedBox(width: 8),
+                Text(
+                  'AI is thinking...',
+                  style: Theme.of(context).textTheme.bodyMedium?.copyWith(
+                    color: Theme.of(context).colorScheme.onSurfaceVariant,
+                  ),
+                ),
+              ],
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
   Widget _buildErrorMessage(String error, controller) {
     return Container(
       margin: const EdgeInsets.all(16),
@@ -317,7 +390,7 @@ class _AIChatScreenState extends ConsumerState<AIChatScreen> {
         color: Theme.of(context).colorScheme.surface,
         boxShadow: [
           BoxShadow(
-            color: Theme.of(context).shadowColor.withValues(alpha:0.1),
+            color: Theme.of(context).shadowColor.withValues(alpha: 0.1),
             blurRadius: 8,
             offset: const Offset(0, -2),
           ),
@@ -362,8 +435,8 @@ class _AIChatScreenState extends ConsumerState<AIChatScreen> {
                 decoration: BoxDecoration(
                   shape: BoxShape.circle,
                   color: state.isRecording
-                      ? Theme.of(context).colorScheme.error.withValues(alpha:0.12)
-                      : Theme.of(context).colorScheme.primary.withValues(alpha:0.08),
+                      ? Theme.of(context).colorScheme.error.withValues(alpha: 0.12)
+                      : Theme.of(context).colorScheme.primary.withValues(alpha: 0.08),
                 ),
                 child: IconButton(
                   onPressed: state.isRecording
@@ -429,7 +502,7 @@ class _AIChatScreenState extends ConsumerState<AIChatScreen> {
                   color: Theme.of(context)
                       .colorScheme
                       .primary
-                      .withValues(alpha:state.isLoading ||
+                      .withValues(alpha: state.isLoading ||
                               _textController.text.trim().isEmpty
                           ? 0.06
                           : 0.12),