Feature: interactive swagger-ui auto-generated API docs from express (#1812)

* Add interactive swagger-ui auto-generated API docs from express

* Update README.md

* Update index.ts //@ts-ignore

* Fix eslint no-console error

* Add swagger paths

* Add all end  points

* Update swagger.yml

* update swagger yml file

* update swagger config

---------

Co-authored-by: Henry <hzj94@hotmail.com>

packages/api-documentation/src/index.ts

@@ -0,0 +1,17 @@
+import express, { Request, Response } from 'express'
+import swaggerUi from 'swagger-ui-express'
+import { swaggerDocs, swaggerExplorerOptions } from './configs/swagger.config'
+
+const app = express()
+const port = 6655
+
+app.get('/', (req: Request, res: Response) => {
+    res.redirect('/api-docs')
+})
+
+app.use('/api-docs', swaggerUi.serve, swaggerUi.setup(swaggerDocs, swaggerExplorerOptions))
+
+app.listen(port, () => {
+    // eslint-disable-next-line no-console
+    console.log(`Flowise API documentation server listening on port ${port}`)
+})