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Dockerfile

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+# Use a slim Python base image
+FROM python:3.10-slim
+
+# Set working directory
+WORKDIR /app
+
+# Install Python dependencies
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy all project files into the container
+COPY . .
+
+# Set environment to unbuffered (cleaner logs)
+ENV PYTHONUNBUFFERED=1
+
+# Run FastAPI app on port 7860 (required by HF Spaces)
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]
+

main.py

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+from app.api_routes import router
+
+from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
+
+app = FastAPI()
+
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],  # Update with frontend domain in prod
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+
+app.include_router(router)
+
+
+@app.get("/health")
+def health_check():
+    return {"status": "ok"}

requirements.txt

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+# Web framework
+fastapi==0.115.12
+uvicorn[standard]==0.34.2
+
+# HTTP client
+httpx==0.28.1
+openai==1.82.0
+
+# Transformers & Hugging Face tools
+transformers==4.52.3
+sentence-transformers==4.1.0
+
+# Vector DB
+qdrant-client==1.14.2
+
+# Caching, file IO, progress
+tqdm==4.67.1
+joblib==1.5.0
+python-dotenv==1.1.0
+
+# NLTK for BM25 and query preprocessing
+nltk==3.9.1
+rank-bm25==0.2.2
+
+# Typing for Python 3.10+
+typing_extensions>=4.13.2