add test to openvm Dockefile

docker/openvm/Dockerfile

@@ -20,4 +20,13 @@ ENV OPENVM_TOOLCHAIN_VERSION="nightly-2025-02-14"
 # Verify cargo-openvm is accessible with the correct toolchain
 RUN cargo "+${OPENVM_TOOLCHAIN_VERSION}" openvm --version
 
+# Copy the entire ere project context
+# The WORKDIR is /app from the base image
+WORKDIR /app
+COPY . .
+
+# Run tests
+RUN echo "Running tests for ere-openvm library..." && \
+    cargo test --release -p ere-openvm --lib -- --color always
+
 CMD ["/bin/bash"]