Revert "Refa: Chats /chat API to RESTFul (#13871)" (#13877)

### What problem does this PR solve?

This reverts commit 1a608ac411.

### Type of change

- [x] Other (please describe):

web/src/utils/api.ts

@@ -128,13 +128,10 @@ export default {
   get_dataset_filter: `${api_host}/document/filter`,
 
   // chat
-  createChat: `${ExternalApi}${api_host}/chats`,
-  listChats: `${ExternalApi}${api_host}/chats`,
-  getChat: (chatId: string) => `${ExternalApi}${api_host}/chats/${chatId}`,
-  updateChat: (chatId: string) => `${ExternalApi}${api_host}/chats/${chatId}`,
-  patchChat: (chatId: string) => `${ExternalApi}${api_host}/chats/${chatId}`,
-  deleteChat: (chatId: string) => `${ExternalApi}${api_host}/chats/${chatId}`,
-  bulkDeleteChats: `${ExternalApi}${api_host}/chats`,
+  setDialog: `${api_host}/dialog/set`,
+  getDialog: `${api_host}/dialog/get`,
+  removeDialog: `${api_host}/dialog/rm`,
+  listDialog: `${api_host}/dialog/list`,
   setConversation: `${api_host}/conversation/set`,
   getConversation: `${api_host}/conversation/get`,
   getConversationSSE: (dialogId: string) =>
@@ -159,6 +156,7 @@ export default {
   uploadAndParseExternal: `${api_host}/api/document/upload_and_parse`,
 
   // next chat
+  listNextDialog: `${api_host}/dialog/next`,
   fetchExternalChatInfo: (id: string) =>
     `${ExternalApi}${api_host}/chatbots/${id}/info`,
 

web/src/utils/llm-util.ts

@@ -79,7 +79,7 @@ const modelParamMap: ModelParamMap = {
 // API endpoint whitelist - only these endpoints will have tenant parameters added
 const API_WHITELIST = [
   '/v1/user/set_tenant_info',
-  '/api/v1/chats',
+  '/v1/dialog/set',
   '/v1/canvas/set',
   '/v1/canvas/setting',
   '/api/v1/searches/',