Add files via upload

Dockerfile

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+FROM python:3.11-slim
+
+WORKDIR /app
+
+# Install server dependencies
+COPY requirements-server.txt .
+RUN pip install --no-cache-dir -r requirements-server.txt
+
+# Copy server code
+COPY server/ ./server/
+
+# Create data directory for SQLite
+RUN mkdir -p /data
+
+ENV SB_DB_PATH=/data/signal_bridge.db
+ENV SB_HOST=0.0.0.0
+ENV SB_PORT=8420
+
+EXPOSE 8420
+
+CMD ["uvicorn", "server.app:app", "--host", "0.0.0.0", "--port", "8420"]