fix: структура как у BG — class-based, debug=True, Dockerfile, чистый requirements

site/app.py

@@ -1,18 +1,25 @@
-from flask import Flask, jsonify, render_template
-
-app = Flask(__name__)
+from flask import Flask, render_template, jsonify
 
 
-@app.route("/")
-def index():
-    return render_template("index.html")
+class SayApp:
+    def __init__(self):
+        self.app = Flask(__name__, template_folder="templates", static_folder="static")
+        self.add_routes()
 
+    def add_routes(self):
+        self.app.add_url_rule("/", "index", self.index)
+        self.app.add_url_rule("/health", "health", self.health)
 
-@app.route("/health")
-def health():
-    return jsonify({"status": "ok"})
+    def index(self):
+        return render_template("index.html")
+
+    def health(self):
+        return jsonify({"status": "ok"})
+
+    def run(self):
+        self.app.run(host="0.0.0.0", port=5000, debug=True)
 
 
 if __name__ == "__main__":
-    app.run(host="0.0.0.0", port=5000)
+    SayApp().run()