feat: add bash for better support for claude's terminal usage

Dockerfile

@@ -5,6 +5,8 @@ ENV PATH=$NPM_CONFIG_PREFIX/bin:$PATH
 ENV NODE_ENV=production
 ENV CLAUDE_CONFIG_DIR=/home/node/.claude
 
+RUN apk add --no-cache bash
+
 USER node
 
 WORKDIR /home/node/app
@@ -15,4 +17,4 @@ RUN mkdir -p $CLAUDE_CONFIG_DIR
 
 # Since we destroy the container after exiting, claude code never gets updated. 
 # Updating at the start making sure its up to date.
-ENTRYPOINT ["/bin/sh", "-c", "npm update -g @anthropic-ai/claude-code; claude; exec /bin/sh"]
+ENTRYPOINT ["/bin/bash", "-c", "npm update -g @anthropic-ai/claude-code; claude; exec /bin/bash"]