feat: reduce docker image size

Dockerfile

@@ -50,6 +50,28 @@ RUN sed -i '/wasmd start/s/^/#/' init.sh
 
 RUN bash init.sh
 
+# Stage 2: Create a minimal runtime image
+FROM debian:bullseye-slim
+
+# Install only the necessary runtime dependencies
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    bash \
+    curl \
+    jq \
+    ca-certificates \
+    && apt-get clean && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /root
+
+# Copy the wasmd binary from the build stage
+COPY --from=build-env /go/bin/wasmd /usr/bin/wasmd
+
+# Copy the .wasmd directory from the build stage
+COPY --from=build-env /root/.wasmd /root/.wasmd
+
+# Ensure the wasmd binary is executable
+RUN chmod +x /usr/bin/wasmd
+
 EXPOSE 36657 36656 9290
 
 # Keep the container running