Fix errors for RangeErrors, Fix for accessing undefined objects in Chat.svelte

src/lib/components/chat/Chat.svelte

@@ -839,6 +839,7 @@
 		if (res !== null && res.messages) {
 			// Update chat history with the new messages
 			for (const message of res.messages) {
+				if (message && message.id) {  // Add null check for message and message.id
 					history.messages[message.id] = {
 						...history.messages[message.id],
 						...(history.messages[message.id].content !== message.content
@@ -848,6 +849,7 @@
 					};
 				}
 			}
+		}
 
 		await tick();
 
@@ -1348,7 +1350,7 @@
 				history.currentId = responseMessageId;
 
 				// Append messageId to childrenIds of parent message
-				if (parentId !== null) {
+				if (parentId !== null && history.messages[parentId]) { // Add null check before accessing childrenIds
 					history.messages[parentId].childrenIds = [
 						...history.messages[parentId].childrenIds,
 						responseMessageId
@@ -1526,7 +1528,7 @@
 							: undefined
 				},
 
-				files: files.length > 0 ? files : undefined,
+				files: (files?.length ?? 0) > 0 ? files : undefined,
 				tool_ids: selectedToolIds.length > 0 ? selectedToolIds : undefined,
 				features: {
 					web_search: webSearchEnabled

src/lib/components/common/RichTextInput/AutoCompletion.js

@@ -158,6 +158,7 @@ export const AIAutocompletion = Extension.create({
 															if (
 																view.state.selection.$head.pos === view.state.selection.$head.end()
 															) {
+																if (view.state === newState) {
 																	view.dispatch(
 																		newState.tr.setNodeMarkup(currentPos, null, {
 																			...newNode.attrs,
@@ -168,6 +169,7 @@ export const AIAutocompletion = Extension.create({
 																	);
 																}
 															}
+														}
 													})
 													.finally(() => {
 														loading = false;