chore: update live chat and work server changes

src/app/main/chatV2/hooks/useConversationComposerController.ts

@@ -2,6 +2,19 @@ import { useCallback } from 'react';
 import { chatGateway } from '../data/chatGateway';
 import type { ChatComposerAttachment, ChatConversationRequest, ChatMessage } from '../../mainChatPanel/types';
 
+export type ComposerFilePickResult = {
+  items: {
+    key: string;
+    fileName: string;
+    status: 'uploaded' | 'failed';
+    reason?: string;
+  }[];
+};
+
+function buildComposerFilePickKey(file: File) {
+  return `${file.name}:${file.size}:${file.type}:${file.lastModified}`;
+}
+
 type PendingChatRequest = {
   sessionId: string;
   requestId: string;
@@ -107,9 +120,9 @@ export function useConversationComposerController({
   scrollViewportToBottom,
 }: UseConversationComposerControllerOptions) {
   const handleComposerFilesPicked = useCallback(
-    async (files: File[]) => {
+    async (files: File[]): Promise<ComposerFilePickResult> => {
       if (files.length === 0 || isComposerAttachmentUploading) {
-        return;
+        return { items: [] };
       }
 
       setIsComposerAttachmentUploading(true);
@@ -117,7 +130,7 @@ export function useConversationComposerController({
         files.map((file) => chatGateway.uploadComposerFile(activeSessionId, file)),
       );
       const uploadedItems: ChatComposerAttachment[] = [];
-      const failedFileNames: string[] = [];
+      const failedItems: Array<{ fileName: string; reason: string }> = [];
 
       uploadResults.forEach((result, index) => {
         if (result.status === 'fulfilled') {
@@ -125,7 +138,12 @@ export function useConversationComposerController({
           return;
         }
 
-        failedFileNames.push(files[index]?.name || `파일 ${index + 1}`);
+        const fileName = files[index]?.name || `파일 ${index + 1}`;
+        const reason =
+          result.reason instanceof Error && result.reason.message.trim()
+            ? result.reason.message.trim()
+            : '업로드 실패';
+        failedItems.push({ fileName, reason });
       });
 
       if (uploadedItems.length > 0) {
@@ -134,14 +152,29 @@ export function useConversationComposerController({
         setShowScrollToBottom(false);
       }
 
-      if (failedFileNames.length > 0) {
+      if (failedItems.length > 0) {
         setMessages((previous) => [
           ...previous.slice(-39),
-          createLocalMessage(`파일 업로드에 실패했습니다: ${failedFileNames.join(', ')}`),
+          createLocalMessage(
+            ['파일 업로드에 실패했습니다:', ...failedItems.map((item) => `- ${item.fileName}: ${item.reason}`)].join('\n'),
+          ),
         ]);
       }
 
       setIsComposerAttachmentUploading(false);
+      return {
+        items: uploadResults.map((result, index) => ({
+          key: buildComposerFilePickKey(files[index] as File),
+          fileName: files[index]?.name || `파일 ${index + 1}`,
+          status: result.status === 'fulfilled' ? 'uploaded' : 'failed',
+          reason:
+            result.status === 'fulfilled'
+              ? undefined
+              : result.reason instanceof Error && result.reason.message.trim()
+                ? result.reason.message.trim()
+                : '업로드 실패',
+        })),
+      };
     },
     [
       activeSessionId,

src/app/main/chatV2/hooks/useConversationRoomData.ts

@@ -28,6 +28,7 @@ type UseConversationRoomDataOptions = {
   activeSessionId: string;
   oldestLoadedMessageId: number | null;
   reloadKey: number;
+  shouldForceStickToBottomOnNextLoadRef: MutableRefObject<boolean>;
   connectionState: 'connecting' | 'connected' | 'disconnected';
   captureViewportRestoreSnapshot: (options?: { forceStickToBottom?: boolean }) => void;
   sessionMessageCacheRef: MutableRefObject<Map<string, ChatMessage[]>>;
@@ -51,6 +52,7 @@ export function useConversationRoomData({
   activeSessionId,
   oldestLoadedMessageId,
   reloadKey,
+  shouldForceStickToBottomOnNextLoadRef,
   connectionState,
   captureViewportRestoreSnapshot,
   sessionMessageCacheRef,
@@ -93,11 +95,13 @@ export function useConversationRoomData({
 
     const loadConversationDetail = async () => {
       const isSessionChanged = previousSessionIdRef.current !== requestedSessionId;
+      const shouldForceStickToBottom = isSessionChanged || shouldForceStickToBottomOnNextLoadRef.current;
 
       previousSessionIdRef.current = requestedSessionId;
       captureViewportRestoreSnapshot({
-        forceStickToBottom: isSessionChanged,
+        forceStickToBottom: shouldForceStickToBottom,
       });
+      shouldForceStickToBottomOnNextLoadRef.current = false;
       pendingViewportRestoreRef.current = true;
       setConversationLoadingLabel('대화 내용을 불러오는 중입니다.');
       const cachedMessages = isSessionChanged ? [] : (sessionMessageCacheRef.current.get(requestedSessionId) ?? []);
@@ -196,6 +200,7 @@ export function useConversationRoomData({
     pendingViewportRestoreRef,
     reloadKey,
     sessionMessageCacheRef,
+    shouldForceStickToBottomOnNextLoadRef,
     setConversationItems,
     setConversationLoadingLabel,
     setIsConversationContentLoading,

src/app/main/chatV2/hooks/useConversationViewController.ts

@@ -12,6 +12,7 @@ type PreviewItem = {
 type UseConversationViewControllerOptions = {
   activeSessionId: string;
   activeView: 'chat' | 'runtime' | 'errors';
+  isMobileViewport: boolean;
   previewItems: PreviewItem[];
   selectedChatTypeId: string | null;
   composerRef: { current: { focus: (options?: { cursor?: 'start' | 'end' | 'all' }) => void } | null };
@@ -28,6 +29,7 @@ export function useConversationViewController({
   activeSessionId,
   activeView,
   composerRef,
+  isMobileViewport,
   previewItems,
   selectedChatTypeId,
   setActiveSystemStatus,
@@ -99,7 +101,12 @@ export function useConversationViewController({
       return;
     }
 
-    if (activePreview.kind === 'image' || activePreview.kind === 'video' || activePreview.kind === 'pdf') {
+    if (
+      activePreview.kind === 'image' ||
+      activePreview.kind === 'video' ||
+      activePreview.kind === 'pdf' ||
+      activePreview.kind === 'file'
+    ) {
       setPreviewText('');
       setPreviewError('');
       setPreviewContentType('');
@@ -146,12 +153,12 @@ export function useConversationViewController({
   }, [activePreview, isPreviewModalOpen]);
 
   useEffect(() => {
-    if (activeView !== 'chat') {
+    if (activeView !== 'chat' || isMobileViewport) {
       return;
     }
 
     composerRef.current?.focus({ cursor: 'end' });
-  }, [activeView, composerRef, selectedChatTypeId]);
+  }, [activeView, composerRef, isMobileViewport, selectedChatTypeId]);
 
   useEffect(() => {
     if (activeView !== 'chat') {