feat: async file upload

src/lib/components/chat/Chat.svelte

@@ -90,6 +90,7 @@
 	import { fade } from 'svelte/transition';
 	import Tooltip from '../common/Tooltip.svelte';
 	import Sidebar from '../icons/Sidebar.svelte';
+	import { uploadFile } from '$lib/apis/files';
 
 	export let chatIdProp = '';
 

src/lib/components/workspace/Knowledge/KnowledgeBase.svelte

@@ -182,6 +182,12 @@
 
 			if (uploadedFile) {
 				console.log(uploadedFile);
+
+				if (uploadedFile.error) {
+					console.warn('File upload warning:', uploadedFile.error);
+					toast.warning(uploadedFile.error);
+				}
+
 				knowledge.files = knowledge.files.map((item) => {
 					if (item.itemId === tempItemId) {
 						item.id = uploadedFile.id;