Add Presidio detector Dockerfile

presidio/Dockerfile

@@ -0,0 +1,19 @@
+FROM python:3.12-slim
+
+WORKDIR /app
+
+RUN pip install --no-cache-dir \
+    presidio-analyzer \
+    "spacy>=3.7" \
+    fastapi \
+    uvicorn \
+    pydantic
+
+# Traditional/Simplified Chinese model for PERSON detection.
+# For stronger zh-TW name recall you would swap/augment this in a real engagement.
+RUN python -m spacy download zh_core_web_lg
+
+COPY app.py .
+
+EXPOSE 5001
+CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "5001"]