feat(webui): ✨ Add a React WebUI for Simulation

[ronanjia]

A basic UI is added to oasis, which now can be used to generate customized user data for simulation

INFO
This UI is written in React + NestJS wrapped by React Router v7

• React is for the HTML
• NestJS call oasis python function by spawn a "node:child_process" and run the code.

PART 1: Examples in Python

• Bridge file for Nodejs to invoke python function is placed here examples/child_process_bridge/call_from_nodejs.py
• In the same directory, file reddit_user_generate.py handles the code to generate agent user from React

PART 2: UI for Web

• Folder "ui/web" is added to Project root path.
• Directory ui/web/src contains the NestJS code to invoke python code while return result to React
• Directory ui/web/app contains the React code to Show the page

FUNCTION AVAILABLE

• In Simulation Setting Page, user can now customize the parameters for generating simulation agent users by Clicking Button Advanced.
• Generated User Data would be stored to path like /data/user_data/user_data_{count}.json
• The Play Sim function is under construction, a basic functional version would be available next week. HOPEFULLY

[ronanjia]

• Start UI by cd into directory ui/web
• A Node env is required, go to here to install
• Install package dependencies by npm install or yarn install
• Run UI by npm dev or npm dev