feat: Add Docker support and CI/CD workflows documentation; include setup instructions for Docker-based deployment

docs/quickstart.md

@@ -22,6 +22,23 @@ pip install -r requirements.txt
 uvicorn main:app --reload
 ```
 
+## Docker-based setup
+
+To build and run the application using Docker instead of a local Python environment:
+
+```powershell
+# Build the application image (multi-stage build keeps runtime small)
+docker build -t calminer:latest .
+
+# Start the container on port 8000
+docker run --rm -p 8000:8000 calminer:latest
+
+# Supply environment variables (e.g., Postgres connection)
+docker run --rm -p 8000:8000 -e DATABASE_URL="postgresql://user:pass@host/db" calminer:latest
+```
+
+If you maintain a Postgres or Redis dependency locally, consider authoring a `docker compose` stack that pairs them with the app container. The Docker image expects the database to be reachable and migrations executed before serving traffic.
+
 ## Usage Overview
 
 - **API base URL**: `http://localhost:8000/api`