[Feature] Product Registration

[Katsshura]

Product Registration feature - Enabled API

Open API docs:

http://localhost:8080/swagger-ui.html
http://localhost:8080/v3/api-docs

ProductDTO Schema:

Fields marked with * are required and cannot be null.

Field	Constraints
name*	string
description*	string, minLength: 10
price*	number
image_url*	string
available_stock*	long

Request JSON Example

{
  "name": "Test Product One",
  "description": "Product Test Via Postman One",
  "price": 0.99,
  "image_url": "http://localhost:9020",
  "available_stock": 5
}

Response JSON Example

{
  "id": 1,
  "name": "Test Product One",
  "description": "Product Test Via Postman One",
  "price": 0.99,
  "image_url": "http://localhost:9020",
  "available_stock": 5,
  "popularity": 0.0
}