add pydantic support, refactor codebase, update openapi

from edge_cloud_management_api.app import main

if __name__ == "__main__":

    main()

from pathlib import Path

from connexion import FlaskApp

from connexion.options import SwaggerUIOptions

def main():

    file_path = Path(__file__).resolve().parent

    swagger_options = SwaggerUIOptions(swagger_ui_path="/docs")

    app = FlaskApp(__name__, specification_dir=file_path / "specification")

    app.add_api(

        "openapi.yaml",

        swagger_ui_options=swagger_options,

        strict_validation=True,

    )

    app.run(host="127.0.0.1", port=8080)

if __name__ == "__main__":

    main()