Added Dockerfile

Dockerfile

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+# Stage 1: Build the rust binary
+FROM rust:1.80-slim-bookworm AS builder
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y \
+    pkg-config \
+    libssl-dev \
+    protobuf-compiler \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /usr/src/app
+
+# Option: Copy in root workspace files and source crates
+COPY . .
+
+# Build only the server for release
+RUN cargo build --release --bin furumi-server
+
+# Stage 2: Create the minimal runtime image
+FROM debian:bookworm-slim
+
+# Install system dependencies needed at runtime (like OpenSSL if dynamically linked)
+RUN apt-get update && apt-get install -y \
+    ca-certificates \
+    libssl-dev \
+    && rm -rf /var/lib/apt/lists/*
+
+# Create a non-root user
+RUN useradd -ms /bin/bash appuser
+WORKDIR /home/appuser
+
+# Copy the binary from the builder stage
+COPY --from=builder /usr/src/app/target/release/furumi-server /usr/local/bin/furumi-server
+
+USER appuser
+
+# Expose ports: 50051 (gRPC) and 9090 (Metrics)
+EXPOSE 50051
+EXPOSE 9090
+
+# Command to run the server
+ENTRYPOINT ["furumi-server"]