refactor: Singleton exports from service files

Author: allozaur

tools/server/webui/src/lib/components/app/chat/ChatScreen/ChatScreen.svelte

@@ -28,7 +28,7 @@
 		stopGeneration,
 		setMaxContextError
 	} from '$lib/stores/chat.svelte';
-	import { contextService } from '$lib/services/context';
+	import { contextService } from '$lib/services';
 	import { fade, fly, slide } from 'svelte/transition';
 	import { AUTO_SCROLL_INTERVAL, AUTO_SCROLL_THRESHOLD } from '$lib/constants/auto-scroll';
 	import { navigating } from '$app/state';

tools/server/webui/src/lib/services/chat.ts

@@ -619,3 +619,5 @@ export class ChatService {
 		return [systemMsg, ...messages];
 	}
 }
+
+export const chatService = new ChatService();

tools/server/webui/src/lib/services/index.ts

@@ -1,3 +1,3 @@
-export { ChatService } from './chat';
-export { DatabaseStore } from '$lib/stores/database';
+export { chatService } from './chat';
+export { contextService } from './context';
 export { slotsService } from './slots';

tools/server/webui/src/lib/stores/chat.svelte.ts

@@ -1,6 +1,5 @@
 import { DatabaseStore } from '$lib/stores/database';
-import { ChatService } from '$lib/services/chat';
-import { slotsService } from '$lib/services/slots';
+import { chatService, slotsService } from '$lib/services';
 import { serverStore } from '$lib/stores/server.svelte';
 import type {
 	DatabaseConversation,
@@ -58,7 +57,6 @@ class ChatStore {
 	maxContextError = $state<{ message: string; estimatedTokens: number; maxContext: number } | null>(
 		null
 	);
-	private chatService = new ChatService();
 
 	constructor() {
 		if (browser) {
@@ -270,7 +268,7 @@ class ChatStore {
 		// Start slots polling when streaming begins
 		slotsService.startStreamingPolling();
 
-		await this.chatService.sendMessage(allMessages, {
+		await chatService.sendMessage(allMessages, {
 			...this.getApiOptions(),
 
 			onChunk: (chunk: string) => {
@@ -527,7 +525,7 @@ class ChatStore {
 	 */
 	stopGeneration() {
 		slotsService.stopStreamingPolling();
-		this.chatService.abort();
+		chatService.abort();
 		this.savePartialResponseIfNeeded();
 		this.isLoading = false;
 		this.currentResponse = '';
@@ -540,7 +538,7 @@ class ChatStore {
 		if (!this.isLoading) return;
 
 		slotsService.stopStreamingPolling();
-		this.chatService.abort();
+		chatService.abort();
 		await this.savePartialResponseIfNeeded();
 		this.isLoading = false;
 		this.currentResponse = '';