chore: bump version to 0.4.1

Tool usage was not showing after page reload because the toolCalls
field was not being included when saving assistant messages to the
database. Now toolCalls are properly persisted and restored.

backend/cmd/server/main.go

@@ -18,7 +18,7 @@ import (
 )
 
 // Version is set at build time via -ldflags, or defaults to dev
-var Version = "0.4.0"
+var Version = "0.4.1"
 
 func getEnvOrDefault(key, defaultValue string) string {
 	if value := os.Getenv(key); value != "" {

frontend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "vessel",
-  "version": "0.4.0",
+  "version": "0.4.1",
   "private": true,
   "type": "module",
   "scripts": {

frontend/src/lib/components/chat/ChatWindow.svelte

@@ -604,12 +604,16 @@
 				// The results are stored in toolCalls and displayed by ToolCallDisplay
 			}
 
-			// Persist the assistant message (without flooding text content)
+			// Persist the assistant message (including toolCalls for reload persistence)
 			if (conversationId && assistantNode) {
 				const parentOfAssistant = assistantNode.parentId;
 				await addStoredMessage(
 					conversationId,
-					{ role: 'assistant', content: assistantNode.message.content },
+					{
+						role: 'assistant',
+						content: assistantNode.message.content,
+						toolCalls: assistantNode.message.toolCalls
+					},
 					parentOfAssistant,
 					assistantMessageId
 				);