feat: add thinking content to chat response

src/backend/app/api/bots.py

@@ -220,6 +220,7 @@ def chat(
 
     return BotChatResponse(
         response=assistant_content,
+        thinking=result.get("thinking"),
         strategy_config=bot.strategy_config if result.get("strategy_updated") else None,
         success=result.get("success", False),
     )

src/backend/app/db/schemas.py

@@ -145,6 +145,7 @@ class BotChatRequest(BaseModel):
 
 class BotChatResponse(BaseModel):
     response: str
+    thinking: Optional[str] = None
     strategy_config: Optional[dict] = None
     success: bool = False
 

src/backend/app/services/ai_agent/conversational.py

@@ -131,25 +131,38 @@ class ConversationalAgent:
             conversation_history: Optional list of previous messages
             
         Returns:
-            Dict with 'response' (the assistant's reply) and 'strategy_updated' (bool)
+            Dict with 'response' (the assistant's reply), 'thinking' (reasoning), and 'strategy_updated' (bool)
         """
-        # Execute agent using kickoff
+        # Execute agent using stream to capture both thinking and output
         try:
-            result = self.agent.kickoff(user_message)
+            # Use stream instead of kickoff to get thinking content
+            result = self.agent.stream(user_message)
+            
+            # In stream mode, result contains both output and thinking
+            # Extract thinking from the result if available
+            thinking = None
+            if hasattr(result, 'thinking') and result.thinking:
+                thinking = result.thinking
+            elif isinstance(result, dict) and 'thinking' in result:
+                thinking = result.get('thinking')
+            
+            # The actual response
+            result_str = str(result) if not isinstance(result, str) else result
             
             # Check if strategy was updated
-            result_str = str(result)
             strategy_updated = "update_trading_strategy" in result_str or \
                              "Successfully updated" in result_str
             
             return {
                 "response": result_str,
+                "thinking": thinking,
                 "strategy_updated": strategy_updated,
                 "success": True
             }
         except Exception as e:
             return {
                 "response": f"I encountered an error: {str(e)}. Please try again.",
+                "thinking": None,
                 "strategy_updated": False,
                 "success": False
             }

src/frontend/src/lib/api/types.ts

@@ -123,6 +123,7 @@ export interface BotChatRequest {
 
 export interface BotChatResponse {
 	response: string;
+	thinking: string | null;
 	strategy_config: StrategyConfig | null;
 	success: boolean;
 }

src/frontend/src/routes/bot/[id]/+page.svelte

@@ -9,6 +9,7 @@
 	let botId = $derived($page.params.id);
 	let isSending = $state(false);
 	let showStrategy = $state(false);
+	let thinkingContent = $state('');
 
 	onMount(async () => {
 		if (!$isAuthenticated && !$isLoading) {
@@ -43,6 +44,7 @@
 		if (isSending) return;
 		
 		isSending = true;
+		thinkingContent = '';
 
 		// Add user's message immediately so it shows even before API response
 		addMessage({ role: 'user', content: message });
@@ -55,6 +57,8 @@
 			const response = await api.bots.chat(botId, message, controller.signal);
 			clearTimeout(timeoutId);
 			
+			// Set thinking content for display
+			thinkingContent = response.thinking || '';
 			addMessage({ role: 'assistant', content: response.response });
 			
 			if (response.strategy_config) {
@@ -109,7 +113,8 @@
 			bot={$currentBotStore}
 			messages={$chatStore}
 			isThinking={isSending}
-		onSendMessage={handleSendMessage}
+			{thinkingContent}
+			onSendMessage={handleSendMessage}
 		/>
 	</div>