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Dockerfile

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+# ---------- 1) Build frontend (React + Vite) ----------
+FROM node:20-alpine AS frontend-build
+WORKDIR /frontend
+
+# Install frontend dependencies
+COPY frontend/package*.json ./
+RUN npm install
+
+# Copy rest of frontend and build
+COPY frontend/ .
+RUN npm run build
+# Vite will output to /frontend/dist by default
+
+# ---------- 2) Backend (FastAPI + Python) ----------
+FROM python:3.11-slim
+
+ENV PYTHONDONTWRITEBYTECODE=1
+ENV PYTHONUNBUFFERED=1
+
+WORKDIR /app
+
+# System deps (optional but useful for some libs)
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    build-essential \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install backend dependencies
+COPY backend/requirements.txt ./backend/requirements.txt
+RUN pip install --no-cache-dir -r backend/requirements.txt
+
+# Copy backend code
+COPY backend ./backend
+
+# Copy built frontend into backend/frontend_dist
+# FastAPI will serve from this folder later
+RUN mkdir -p backend/frontend_dist
+COPY --from=frontend-build /frontend/dist ./backend/frontend_dist
+
+# Create data directory for SQLite
+RUN mkdir -p data
+
+# Env vars used in backend/db.py etc.
+ENV DB_PATH=/app/data/app.db
+ENV PORT=7860
+ENV PYTHONPATH=/app
+
+EXPOSE 7860
+
+# Launch FastAPI app (we'll use backend.app.main:app)
+CMD ["uvicorn", "backend.app.main:app", "--host", "0.0.0.0", "--port", "7860"]