Update Dockerfile

Dockerfile

@@ -1,12 +1,19 @@
-FROM python:3.9-slim
+# -------------------------------------------------
+#  Use the official HF Python image (includes sudo)
+# -------------------------------------------------
+FROM python:3.12-slim
 
 WORKDIR /app
 
-# Copy ALL files (because Docker is stupid)
-COPY . .
+# Install only what we need
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
 
-# Install dependencies
-RUN pip install fastapi uvicorn
+COPY main.py .
 
-# Run the API
+EXPOSE 8000
+
+# Raw sockets need CAP_NET_RAW + CAP_NET_ADMIN
+# Hugging Face Spaces runs containers with --cap-add automatically,
+# but for local testing add them manually.
 CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000"]