add endpoint

http-api/app/app.py

@@ -17,6 +17,7 @@ from aws_lambda_powertools.utilities.typing import LambdaContext
 from api_gateway import JSONResponse
 from middlewares import AuthenticationMiddleware
 from routes import (
+    billing,
     courses,
     enrollments,
     lookup,
@@ -62,6 +63,7 @@ app.include_router(users.router, prefix='/users')
 app.include_router(users.logs, prefix='/users')
 app.include_router(users.emails, prefix='/users')
 app.include_router(users.orgs, prefix='/users')
+app.include_router(billing.router, prefix='/billing')
 app.include_router(orgs.policies, prefix='/orgs')
 app.include_router(orgs.address, prefix='/orgs')
 app.include_router(orgs.custom_pricing, prefix='/orgs')