* fix(docker): increase opencode memory and cpu limits
* fix(docker): add tini init for zombie reaping
* fix(docker): add healthcheck for hang auto-restart
* test(docker): assert opencode limits, init and healthcheck
* docs(handoff): add handoff and ADR for opencode limits fix
* docs(handoff): set PR number
* docs(project-map): update docker-compose and test descriptions for PR#132
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Co-authored-by: opencode-agent <agent@opencode.local>
