feat(sdk): add nitro process manager

[endersonmaia]

This pull request introduces support for the Nitro runtime in the SDK Docker build, along with related configuration and setup improvements. The most important changes include adding a build stage for Nitro, copying Nitro binaries into the final image, and introducing service run scripts for Nitro components. Minor improvements to build reliability and environment variable management are also included.

Nitro runtime integration:

• Added a new build stage for Nitro in packages/sdk/Dockerfile that fetches and builds the Nitro binaries from the specified version.
• Copied the built nitro and nitroctl binaries from the Nitro build stage into the final Docker image.
• Introduced a new NITRO_VERSION build argument in packages/sdk/docker-bake.hcl to control the Nitro version used.

Service setup for Nitro components:

• Added run scripts for Nitro services (cartesi-rollups-advancer, cartesi-rollups-claimer, cartesi-rollups-evm-reader, cartesi-rollups-jsonrpc-api, cartesi-rollups-validator) in the packages/sdk/skel/etc/nitro/ directory to enable service execution in the container. [1] [2] [3] [4] [5]
• Updated the Dockerfile to copy the skel/ directory into the image and set ownership appropriately for the cartesi user.

Build and environment improvements:

• Improved shell script reliability in Dockerfile build steps by switching to set -e and set -eu where applicable. [1] [2]
• Cleaned up duplicate Docker build arguments and removed unused ones.
• Removed a redundant copy command for su-exec from the Dockerfile.

[changeset-bot]

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Latest commit: 0b2b773

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[Copilot]

Pull Request Overview

This PR adds the hivemind process manager to the @cartesi/sdk Docker image, enabling users to run multiple Cartesi rollups processes simultaneously using a simple Procfile configuration.

• Added hivemind binary installation to the Docker build process
• Configured hivemind version as a build argument for flexibility
• Added changeset documenting the new feature as a minor version update

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
packages/sdk/docker-bake.hcl	Added HIVEMIND_VERSION build argument (1.1.0)
packages/sdk/Dockerfile	Added hivemind installer stage and binary copy to final image
.changeset/legal-hotels-change.md	Added changeset for minor version bump

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