BeforeUp 0.3.1 preview 1

BeforeUp 0.3.1 preview adds a targeted check for an image tag that has been updated locally without changing its name.

When comparing a proposed Compose project with a running one, BeforeUp can now report LOCAL_IMAGE_UPDATED if the image ID currently available on the host differs from the image used to create the container. The check is read-only: no registry access, no image pull, and no container restart. Explicitly platform-pinned services are excluded until platform-sensitive local image checks are supported.

The README and troubleshooting guide now describe the commands people already use for ports, environment changes, volumes and image updates, and explain exactly where BeforeUp adds useful evidence. The public project description and topics focus on those supported cases, without promises about remote images or successful deployments.

Verification: 35 Go tests, Docker Compose integration, race testing, 14 reproducible Compose scenarios, a read-only existing-stack smoke test and local image ID checks across 30 containers. Independent adoption remains unverified.

Linux amd64 and arm64 packages include checksums. This remains a preview release.