⚡ Introduce a new high-performing standalone chat API (#1200)

Closes #1154

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

- **New Features**
	- Added authentication functionality for user sessions in chat API.
- Introduced chat-related API endpoints for starting, previewing, and
continuing chat sessions, and streaming messages.
- Implemented WhatsApp API webhook handling for receiving and processing
messages.
- Added environment variable `NEXT_PUBLIC_CHAT_API_URL` for chat API URL
configuration.

- **Bug Fixes**
	- Adjusted file upload logic to correctly determine the API host.
	- Fixed message streaming URL in chat integration with OpenAI.

- **Documentation**
- Updated guides for creating blocks, local installation, self-hosting,
and deployment to use `bun` instead of `pnpm`.

- **Refactor**
	- Refactored chat API functionalities to use modular architecture.
- Simplified client log saving and session update functionalities by
using external functions.
	- Transitioned package management and workflow commands to use `bun`.

- **Chores**
- Switched to `bun` for package management in Dockerfiles and GitHub
workflows.
	- Added new Dockerfile for chat API service setup with Bun framework.
	- Updated `.prettierignore` and documentation with new commands.

- **Style**
	- No visible changes to end-users.

- **Tests**
	- No visible changes to end-users.

- **Revert**
	- No reverts in this release.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

packages/bot-engine/whatsapp/sendChatReplyToWhatsApp.ts

@@ -10,7 +10,7 @@ import {
 import { convertMessageToWhatsAppMessage } from './convertMessageToWhatsAppMessage'
 import { sendWhatsAppMessage } from './sendWhatsAppMessage'
 import * as Sentry from '@sentry/nextjs'
-import { HTTPError } from 'got'
+import { HTTPError } from 'ky'
 import { convertInputToWhatsAppMessages } from './convertInputToWhatsAppMessage'
 import { isNotDefined } from '@typebot.io/lib/utils'
 import { computeTypingDuration } from '../computeTypingDuration'
@@ -141,7 +141,7 @@ export const sendChatReplyToWhatsApp = async ({
       Sentry.captureException(err, { extra: { message } })
       console.log('Failed to send message:', JSON.stringify(message, null, 2))
       if (err instanceof HTTPError)
-        console.log('HTTPError', err.response.statusCode, err.response.body)
+        console.log('HTTPError', err.response.status, err.response.body)
     }
   }
 
@@ -172,7 +172,7 @@ export const sendChatReplyToWhatsApp = async ({
         Sentry.captureException(err, { extra: { message } })
         console.log('Failed to send message:', JSON.stringify(message, null, 2))
         if (err instanceof HTTPError)
-          console.log('HTTPError', err.response.statusCode, err.response.body)
+          console.log('HTTPError', err.response.status, err.response.body)
       }
     }
   }
@@ -253,7 +253,7 @@ const executeClientSideAction =
         Sentry.captureException(err, { extra: { message } })
         console.log('Failed to send message:', JSON.stringify(message, null, 2))
         if (err instanceof HTTPError)
-          console.log('HTTPError', err.response.statusCode, err.response.body)
+          console.log('HTTPError', err.response.status, err.response.body)
       }
     }
   }