Add FastAPI app with Dockerfile for HF Spaces

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Dockerfile

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+FROM python:3.11-slim
+
+WORKDIR /app
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY . .
+
+EXPOSE 7860
+
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]

main.py

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+from fastapi import FastAPI
+from fastapi.responses import FileResponse
+
+app = FastAPI(title="ZHSAPI")
+
+@app.get("/")
+def root():
+    return FileResponse("index.html")
+
+@app.get("/health")
+def health():
+    return {"status": "ok"}

requirements.txt

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+fastapi
+uvicorn[standard]