add dockerfile to classifier

classifier/Dockerfile

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+# 1) Base image
+FROM python:3.10-slim
+
+# 2) Print logs unbuffered
+ENV PYTHONUNBUFFERED=1
+
+# 3) Working directory
+WORKDIR /app
+
+# 4) Copy & install Python dependencies
+COPY requirements.txt ./
+RUN pip install --no-cache-dir -r requirements.txt
+
+# 5) Copy your FastAPI app
+COPY classifier.py .
+
+# 6) Build-time secret (or omit and inject at runtime)
+ARG TOGETHERAI_API_KEY
+ENV TOGETHERAI_API_KEY=${TOGETHERAI_API_KEY}
+
+# 7) Expose the port
+EXPOSE 8000
+
+# 8) Launch Uvicorn directly—no wrapper script needed
+CMD ["uvicorn", "classifier:app", "--host", "0.0.0.0", "--port", "8000", "--log-level", "info"]