Add Dockerfile for Python Flask application

ai-portal/Dockerfile

@@ -0,0 +1,13 @@
+FROM python:3.12-slim
+
+# Install docker compose CLI so the app can control other stacks
+RUN apt-get update && apt-get install -y curl && \
+    curl -fsSL https://get.docker.com | sh && \
+    pip install flask && \
+    rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+COPY app.py .
+COPY templates/ templates/
+
+CMD ["python", "app.py"]