feat: user stt language

src/lib/components/channel/MessageInput.svelte

@@ -17,7 +17,6 @@
 	import { WEBUI_API_BASE_URL } from '$lib/constants';
 	import FileItem from '../common/FileItem.svelte';
 	import Image from '../common/Image.svelte';
-	import { transcribeAudio } from '$lib/apis/audio';
 	import FilesOverlay from '../chat/MessageInput/FilesOverlay.svelte';
 
 	export let placeholder = $i18n.t('Send a Message');
@@ -160,7 +159,19 @@
 
 		try {
 			// During the file upload, file content is automatically extracted.
-			const uploadedFile = await uploadFile(localStorage.token, file);
+
+			// If the file is an audio file, provide the language for STT.
+			let metadata = null;
+			if (
+				(file.type.startsWith('audio/') || file.type.startsWith('video/')) &&
+				$settings?.audio?.stt?.language
+			) {
+				metadata = {
+					language: $settings?.audio?.stt?.language
+				};
+			}
+
+			const uploadedFile = await uploadFile(localStorage.token, file, metadata);
 
 			if (uploadedFile) {
 				console.info('File upload completed:', {