feat: refine codex live chat context flows

etc/servers/work-server/src/routes/chat.ts

@@ -10,6 +10,7 @@ import { ensureChatSessionResourceDirectories, getActiveChatService, getChatRunt
 import { rollbackChatRuntimeRequest } from '../services/chat-runtime-rollback-service.js';
 import {
   CHAT_CONTEXT_DESCRIPTION_MAX_LENGTH,
+  clearChatConversationData,
   createChatConversation,
   deleteUnansweredChatConversationRequest,
   deleteChatConversation,
@@ -22,13 +23,14 @@ import {
   updateChatConversationContext,
 } from '../services/chat-room-service.js';
 import { chatRuntimeService } from '../services/chat-runtime-service.js';
+import { resolveMainProjectRoot } from '../services/main-project-root-service.js';
 
 const CHAT_ATTACHMENT_ROUTE_BODY_LIMIT = 20 * 1024 * 1024;
 const CHAT_ATTACHMENT_FILE_SIZE_LIMIT = 10 * 1024 * 1024;
 const CHAT_PUBLIC_ROUTE_PREFIX = '/.codex_chat/';
 const CHAT_API_RESOURCE_ROUTE_PREFIX = '/api/chat/resources';
 
-function resolveStaticContentType(filePath: string) {
+export function resolveStaticContentType(filePath: string) {
   const extension = path.extname(filePath).toLowerCase();
 
   switch (extension) {
@@ -40,10 +42,12 @@ function resolveStaticContentType(filePath: string) {
     case '.cjs':
     case '.json':
     case '.css':
-    case '.html':
     case '.txt':
     case '.diff':
       return 'text/plain; charset=utf-8';
+    case '.html':
+    case '.htm':
+      return 'text/html; charset=utf-8';
     case '.md':
     case '.markdown':
       return 'text/markdown; charset=utf-8';
@@ -139,7 +143,7 @@ function sanitizeChatAttachmentFileName(fileName: string) {
 }
 
 function resolveChatAttachmentRepoPath() {
-  return path.resolve(env.SERVER_COMMAND_MAIN_PROJECT_ROOT || env.PLAN_MAIN_PROJECT_REPO_PATH || env.PLAN_GIT_REPO_PATH);
+  return resolveMainProjectRoot();
 }
 
 function getClientIdHeader(request: { headers: Record<string, unknown> }) {
@@ -421,7 +425,7 @@ export async function registerChatRoutes(app: FastifyInstance) {
       });
     }
 
-    const messageLimit = query.limit ?? 6;
+    const messageLimit = query.limit ?? 8;
     const detailPage = await listChatConversationDetailPage(params.sessionId, {
       limit: messageLimit,
       beforeMessageId: query.beforeMessageId ?? null,
@@ -562,4 +566,34 @@ export async function registerChatRoutes(app: FastifyInstance) {
       sessionId: params.sessionId,
     };
   });
+
+  app.post('/api/chat/conversations/:sessionId/clear', async (request, reply) => {
+    const params = z.object({
+      sessionId: z.string().trim().min(1).max(120),
+    }).parse(request.params ?? {});
+
+    const clientId = canViewAllConversations(request) ? null : getClientIdHeader(request);
+    const current = await getChatConversation(params.sessionId, clientId || null);
+
+    if (!current) {
+      return reply.code(404).send({
+        message: '초기화할 채팅방을 찾을 수 없습니다.',
+      });
+    }
+
+    getActiveChatService()?.resetSessionData(params.sessionId);
+    chatRuntimeService.clearSession(params.sessionId);
+    const item = await clearChatConversationData(params.sessionId, clientId || null);
+
+    if (!item) {
+      return reply.code(404).send({
+        message: '채팅방 데이터 초기화 후 다시 불러오지 못했습니다.',
+      });
+    }
+
+    return {
+      ok: true,
+      item,
+    };
+  });
 }