Restructure: site/ with modular code, matching Nubes Flask convention

site/app.py

@@ -0,0 +1,18 @@
+"""Точка входа — запускается как python site/app.py."""
+import os
+import sys
+
+# site/ не может быть пакетом (конфликт с stdlib site.py)
+sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
+
+from flask import Flask
+
+from routes.main import bp as main_bp
+
+NUBES_API_ENDPOINT = os.getenv("NUBES_API_ENDPOINT", "https://lk-api-gateway-dev.ngcloud.ru/api/v1/svc")
+NUBES_API_TOKEN = os.getenv("NUBES_API_TOKEN", "")
+
+app = Flask(__name__)
+app.config["NUBES_API_ENDPOINT"] = NUBES_API_ENDPOINT
+app.config["NUBES_API_TOKEN"] = NUBES_API_TOKEN
+app.register_blueprint(main_bp)