chore: add Dockerfile

Dockerfile

@@ -0,0 +1,23 @@
+# ---------- Base image ----------
+FROM python:3.10-slim
+
+# ---------- Install dependencies ----------
+RUN apt-get update && apt-get install -y \
+    build-essential \
+    && rm -rf /var/lib/apt/lists/*
+
+# ---------- Workdir ----------
+WORKDIR /code
+
+# ---------- Install Python libs ----------
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# ---------- Copy app ----------
+COPY . .
+
+# ---------- Expose port ----------
+EXPOSE 7860
+
+# ---------- Run FastAPI ----------
+CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "7860"]