Fix entrypoint executable permission

Dockerfile

@@ -11,7 +11,7 @@ COPY --from=deps /app/node_modules ./node_modules
 COPY package.json tsconfig.json config.example.yaml ./
 COPY src ./src
 COPY entrypoint.sh /entrypoint.sh
-RUN mkdir -p /data /home/bun/.zcode-proxy && chown -R bun:bun /data /home/bun/.zcode-proxy /entrypoint.sh
+RUN mkdir -p /data /home/bun/.zcode-proxy && chmod 755 /entrypoint.sh && chown -R bun:bun /data /home/bun/.zcode-proxy /entrypoint.sh
 ENV ZCODE_PROXY_PORT=8080
 ENV ZCODE_PROXY_CONFIG=/data/config.yaml
 EXPOSE 8080