fix: Dockerfile + app.run для managed k8s

Dockerfile

@@ -0,0 +1,13 @@
+FROM python:3.12-slim
+
+WORKDIR /app
+
+COPY requirements.txt .
+
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY app.py .
+
+EXPOSE 5000
+
+CMD ["python", "app.py"]

app.py

@@ -11,3 +11,7 @@ def index():
 @app.route("/health")
 def health():
     return {"ok": True, "service": "contracts-flask"}
+
+
+if __name__ == "__main__":
+    app.run(debug=False, host="0.0.0.0", port=5000)